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1. Atacama Cosmology Telescope: A Catalog of >4000 Sunyaev–Zel’dovich Galaxy Clusters

Author: Eli S. Rykoff, Jo Dunkley, E. Bertin, Ofer Lahav, Nick Battaglia, M. Soares-Santos, Hironao Miyatake, Shannon M. Duff, R. D. Wilkinson, Adriaan J. Duivenvoorden, L. N. da Costa, Joel N. Ullom, Robert Morgan, D. L. Burke, Devin Crichton, Kavilan Moodley, Peter Doel, Alexandra Amon, Edward J. Wollack, N. C. Robertson, H. T. Diehl, Joseph E. Golec, Sunayana Bhargava, Samuel Hinton, Emmanuel Schaan, Enrique Gaztanaga, Megan Gralla, David N. Spergel, Johannes Hubmayr, Simon Dicker, David Bacon, S. Allam, Robert A. Gruendl, Simone Ferraro, C. Aros-Bunster, Felipe Menanteau, G. Gutierrez, Kevin M. Huffenberger, Daniel Thomas, Ramon Miquel, Michael D. Niemack, I. Ferrero, Mathew S. Madhavacheril, J. P. Dietrich, Niall MacCrann, Juan Garcia-Bellido, Tesla E. Jeltema, David J. James, Yanxi Zhang, A. K. Romer, Ben Hoyle, Hy Trac, Mark J. Devlin, Patricio A. Gallardo, J. Gschwend, A. A. Plazas, Brian J. Koopman, Rolando Dünner, Zhilei Xu, Simone Aiola, Behzad Ansarinejad, A. Choi, Jeff McMahon, Eduardo Rozo, Gary Bernstein, K. Honscheid, Michel Aguena, Tanay Bhandarkar, Dan Becker, C. Sifon, Neelima Sehgal, Bhuvnesh Jain, Laura Newburgh, Dongwon Han, F. Paz-Chinchón, J. R. Bond, Kyler Kuehn, Peter Melchior, M. Carrasco Kind, Eve M. Vavagiakis, Steve K. Choi, Suzanne T. Staggs, Paul Giles, R. L. C. Ogando, J. C. Hill, Federico Nati, M. E. C. Swanson, E. V. Denison, Kevin T. Crowley, Tony Mroczkowski, W. G. Hartley, Antonella Palmese, Martine Lokken, S. Kent, Alessandro Schillaci, Masamune Oguri, John P. Hughes, M. A. G. Maia, Maria Salatino, S. Amodeo, T. Shin, S. Adhikari, M. Hasselfield, M. Costanzi, S. I. Loubser, J. Van Lanen, B. Partridge, Sigurd Naess, Adam D. Hincks, J. A. Beall, B. Flaugher, S. M. Simon, Jason E. Austermann, S. P. Ho, John Orlowski-Scherer, M. Smith, Daniel Gruen, J. Martin, D. W. Gerdes, J. Annis, Kenda Knowles, David J. Brooks, Erminia Calabrese, Emilie R. Storer, Gene C. Hilton, Leila R. Vale, Salcedo Romero de Ávila, Phumlani Phakathi, Josh Frieman, Yen-Ting Lin, T. M. C. Abbott, Chun-Hao To, E. J. Sanchez, J. Carretero, E. Suchyta, Matt Hilton, Christopher J. Conselice, Tobias A. Marriage, Sebastian Grandis, A. Carnero Rosell, Agnès Ferté, Anton T. Jaelani, Marcos Lima, S. Everett, S. Serrano, Lyman A. Page, J. De Vicente, Atsushi J. Nishizawa, G. Tarle, UAM. Departamento de Física Teórica, Hilton, M, Sifon, C, Naess, S, Madhavacheril, M, Oguri, M, Rozo, E, Rykoff, E, Adhikari, S, Aguena, M, Aiola, S, Allam, S, Amodeo, S, Amon, A, Annis, J, Ansarinejad, B, Abbott, T, Aros-Bunster, C, Austermann, J, Avila, S, Bacon, D, Battaglia, N, Beall, J, Becker, D, Bernstein, G, Bertin, E, Bhandarkar, T, Bhargava, S, Bond, J, Brooks, D, Burke, D, Calabrese, E, Carrasco Kind, M, Carretero, J, Choi, S, Choi, A, Conselice, C, Da Costa, L, Costanzi, M, Crichton, D, Crowley, K, Dunner, R, Denison, E, Devlin, M, Dicker, S, Diehl, H, Dietrich, J, Doel, P, Duff, S, Duivenvoorden, A, Dunkley, J, Everett, S, Ferraro, S, Ferte, A, Flaugher, B, Frieman, J, Ferrero, I, Gallardo, P, Garcia-Bellido, J, Gaztanaga, E, Giles, P, Golec, J, Gralla, M, Grandis, S, Gruen, D, Gerdes, D, Gruendl, R, Gschwend, J, Gutierrez, G, Han, D, Hartley, W, Hasselfield, M, Hill, J, Hilton, G, Hincks, A, Hinton, S, Ho, S, Honscheid, K, Hoyle, B, Hubmayr, J, Huffenberger, K, Hughes, J, Jaelani, A, Jain, B, James, D, Jeltema, T, Kent, S, Knowles, K, Koopman, B, Kuehn, K, Lahav, O, Lima, M, Lin, Y, Lokken, M, Loubser, S, Maccrann, N, Maia, M, Marriage, T, Martin, J, Mcmahon, J, Melchior, P, Menanteau, F, Miquel, R, Moodley, K, Morgan, R, Mroczkowski, T, Nati, F, Newburgh, L, Niemack, M, Nishizawa, A, Miyatake, H, Ogando, R, Orlowski-Scherer, J, Page, L, Palmese, A, Partridge, B, Paz-Chinchon, F, Phakathi, P, Plazas, A, Robertson, N, Romer, A, Carnero Rosell, A, Sanchez, E, Schaan, E, Schillaci, A, Sehgal, N, Serrano, S, Shin, T, Simon, S, Smith, M, Salatino, M, Soares-Santos, M, Spergel, D, Staggs, S, Storer, E, Suchyta, E, Swanson, M, Tarle, G, Thomas, D, To, C, Trac, H, Ullom, J, Vale, L, Van Lanen, J, Vavagiakis, E, De Vicente, J, Wilkinson, R, Wollack, E, Xu, Z, Zhan, Y, Hilton, M., Sifón, C., Naess, S., Madhavacheril, M., Oguri, M., Rozo, E., Rykoff, E., Abbott, T. M. C., Adhikari, S., Aguena, M., Aiola, S., Allam, S., Amodeo, S., Amon, A., Annis, J., Ansarinejad, B., Aros-Bunster, C., Austermann, J. E., Avila, S., Bacon, D., Battaglia, N., Beall, J. A., Becker, D. T., Bernstein, G. M., Bertin, E., Bhandarkar, T., Bhargava, S., Bond, J. R., Brooks, D., Burke, D. L., Calabrese, E., Carretero, J., Choi, S. K., Choi, A., Conselice, C., da Costa, L. N., Costanzi, M., Crichton, D., Crowley, K. T., Dünner, R., Denison, E. V., Devlin, M. J., Dicker, S. R., Diehl, H. T., Dietrich, J. P., Doel, P., Duff, S. M., Duivenvoorden, A. J., Dunkley, J., Everett, S., Ferraro, S., Ferrero, I., Ferté, A., Flaugher, B., Frieman, J., Gallardo, P. A., García-Bellido, J., Gaztanaga, E., Gerdes, D. W., Giles, P., Golec, J. E., Gralla, M. B., Grandis, S., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., Han, D., Hartley, W. G., Hasselfield, M., Hill, J. C., Hilton, G. C., Hincks, A. D., Hinton, S. R., S-P. P., Ho, Honscheid, K., Hoyle, B., Hubmayr, J., Huffenberger, K. M., Hughes, J. P., Jaelani, A. T., Jain, B., James, D. J., Jeltema, T., Kent, S., Carrasco Kind, M., Knowles, K., Koopman, B. J., Kuehn, K., Lahav, O., Lima, M., Lin, Y-T., Lokken, M., Loubser, S. I., Maccrann, N., Maia, M. A. G., Marriage, T. A., Martin, J., Mcmahon, J., Melchior, P., Menanteau, F., Miquel, R., Miyatake, H., Moodley, K., Morgan, R., Mroczkowski, T., Nati, F., Newburgh, L. B., Niemack, M. D., Nishizawa, A. J., Ogando, R. L. C., Orlowski-Scherer, J., Page, L. A., Palmese, A., Partridge, B., Paz-Chinchón, F., Phakathi, P., Plazas, A. A., Robertson, N. C., Romer, A. K., Carnero Rosell, A., Salatino, M., Sanchez, E., Schaan, E., Schillaci, A., Sehgal, N., Serrano, S., Shin, T., Simon, S. M., Smith, M., Soares-Santos, M., Spergel, D. N., Staggs, S. T., Storer, E. R., Suchyta, E., Swanson, M. E. C., Tarle, G., Thomas, D., To, C., Trac, H., Ullom, J. N., Vale, L. R., Van Lanen, J., Vavagiakis, E. M., De Vicente, J., Wilkinson, R. D., Wollack, E. J., Xu, Z., and Zhang, Y.
Subjects: Galaxy clusters, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Cosmology, Large-scale structure of the universe, Astrophysics - Cosmology and Nongalactic Astrophysics, Intracluster medium, 0103 physical sciences, Cluster (physics), Sunyaev-Zeldovich Effect, 010303 astronomy & astrophysics, Cosmology, Galaxy clusters, Galaxy cluster, Astrophysics::Galaxy Astrophysics, AGLOMERADOS (GALÁXIA), Physics, 010308 nuclear & particles physics, Star formation, Física, Astronomy and Astrophysics, XMM-newton Telescope, Galaxies, Galaxy, Redshift, Space and Planetary Science, Atacama Cosmology Telescope
Abstract: Hilton, M., et al., We present a catalog of 4195 optically confirmed Sunyaev–Zel’dovich (SZ) selected galaxy clusters detected with signal-to-noise ratio >4 in 13,211 deg of sky surveyed by the Atacama Cosmology Telescope (ACT). Cluster candidates were selected by applying a multifrequency matched filter to 98 and 150 GHz maps constructed from ACT observations obtained from 2008 to 2018 and confirmed using deep, wide-area optical surveys. The clusters span the redshift range 0.04 < z < 1.91 (median z = 0.52). The catalog contains 222 z > 1 clusters, and a total of 868 systems are new discoveries. Assuming an SZ signal versus mass-scaling relation calibrated from X-ray observations, the sample has a 90% completeness mass limit of M > 3.8 × 10 M, evaluated at z = 0.5, for clusters detected at signal-to-noise ratio >5 in maps filtered at an angular scale of 2 4. The survey has a large overlap with deep optical weak-lensing surveys that are being used to calibrate the SZ signal mass-scaling relation, such as the Dark Energy Survey (4566 deg), the Hyper Suprime-Cam Subaru Strategic Program (469 deg), and the Kilo Degree Survey (825 deg). We highlight some noteworthy objects in the sample, including potentially projected systems, clusters with strong lensing features, clusters with active central galaxies or star formation, and systems of multiple clusters that may be physically associated. The cluster catalog will be a useful resource for future cosmological analyses and studying the evolution of the intracluster medium and galaxies in massive clusters over the past 10 Gyr., The DES Data Management System is supported by the NSF under Grant Nos. AST-1138766 and AST-1536171. The DES participants from Spanish institutions are partially supported by MICINN under grants ESP2017-89838, PGC2018-094773, PGC2018-102021, SEV-2016-0588, SEV-2016-0597, and MDM-2015-0509, some of which include ERDF funds from the European Union. IFAE is partially funded by the CERCA program of the Generalitat de Catalunya. Research leading to these results has received funding from the European Research Council under the European Unionʼs Seventh Framework Program (FP7/2007-2013) including ERC grant agreements 240672, 291329, and 306478. We acknowledge support from the Brazilian Instituto Nacional de Ciência e Tecnologia (INCT) do e-Universo (CNPq grant 465376/2014-2).
Published: 2021

2. The Atacama Cosmology Telescope: a search for Planet 9

Author: Sigurd Naess, Simone Aiola, Nick Battaglia, Richard J. Bond, Erminia Calabrese, Steve K. Choi, Nicholas F. Cothard, Mark Halpern, J. Colin Hill, Brian J. Koopman, Mark Devlin, Jeff McMahon, Simon Dicker, Adriaan J. Duivenvoorden, Jo Dunkley, Valentina Fanfani, Simone Ferraro, Patricio A. Gallardo, Yilun Guan, Dongwon Han, Matthew Hasselfield, Adam D. Hincks, Kevin Huffenberger, Arthur B. Kosowsky, Thibaut Louis, Amanda Macinnis, Mathew S. Madhavacheril, Federico Nati, Michael D. Niemack, Lyman Page, Maria Salatino, Emmanuel Schaan, John Orlowski-Scherer, Alessandro Schillaci, Benjamin Schmitt, Neelima Sehgal, Cristóbal Sifón, Suzanne Staggs, Alexander Van Engelen, Edward J. Wollack, Naess, S, Aiola, S, Battaglia, N, Bond, R, Calabrese, E, Choi, S, Cothard, N, Halpern, M, Colin Hill, J, Koopman, B, Devlin, M, Mcmahon, J, Dicker, S, Duivenvoorden, A, Dunkley, J, Fanfani, V, Ferraro, S, Gallardo, P, Guan, Y, Han, D, Hasselfield, M, Hincks, A, Huffenberger, K, Kosowsky, A, Louis, T, Macinnis, A, Madhavacheril, M, Nati, F, Niemack, M, Page, L, Salatino, M, Schaan, E, Orlowski-Scherer, J, Schillaci, A, Schmitt, B, Sehgal, N, Sif??n, C, Staggs, S, Van Engelen, A, Wollack, E, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)
Subjects: Earth and Planetary Astrophysics (astro-ph.EP), 010308 nuclear & particles physics, Molecular, FOS: Physical sciences, Astronomy and Astrophysics, Astronomy & Astrophysics, Sky surveys, Atomic, 01 natural sciences, Millimeter astronomy, Particle and Plasma Physics, 13. Climate action, Space and Planetary Science, 0103 physical sciences, Nuclear, Solar system planet, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], 010303 astronomy & astrophysics, Astronomical and Space Sciences, Astrophysics - Earth and Planetary Astrophysics, Physical Chemistry (incl. Structural)
Abstract: We use Atacama Cosmology Telescope (ACT) observations at 98 GHz (2015--2019), 150 GHz (2013--2019) and 229 GHz (2017--2019) to perform a blind shift-and-stack search for Planet 9. The search explores distances from 300 AU to 2000 AU and velocities up to 6.3 arcmin per year, depending on the distance. For a 5 Earth-mass Planet 9 the detection limit varies from 325 AU to 625 AU, depending on the sky location. For a 10 Earth-mass planet the corresponding range is 425 AU to 775 AU. The search covers the whole 18,000 square degrees of the ACT survey, though a slightly deeper search is performed for the parts of the sky consistent with Planet 9's expected orbital inclination. No significant detections are found, which is used to place limits on the mm-wave flux density of Planet 9 over much of its orbit. Overall we eliminate roughly 17% and 9% of the parameter space for a 5 and 10 Earth-mass Planet 9 respectively. We also provide a list of the 10 strongest candidates from the search for possible follow-up. More generally, we exclude (at 95% confidence) the presence of an unknown Solar system object within our survey area brighter than 4--12 mJy (depending on position) at 150 GHz with current distance $300 \text{ AU} < r < 600 \text{ AU}$ and heliocentric angular velocity $1.5'/\text{yr} < v \cdot \frac{500 \text{ AU}}{r} < 2.3'\text{yr}$, corresponding to low-to-moderate eccentricities. These limits worsen gradually beyond 600 AU, reaching 5--15 mJy by 1500 AU., 23 pages, 10 figures, 5 tables, submitted to ApJ
Published: 2021
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3. The Atacama Cosmology Telescope: microwave intensity and polarization maps of the Galactic Center

Author: Federico Nati, Simone Aiola, Rolando Dünner, Jeff McMahon, Edward J. Wollack, Matthew Hasselfield, Sigurd Naess, Susan E. Clark, Steve K. Choi, Emmanuel Schaan, Cody J. Duell, Mathew S. Madhavacheril, Simone Ferraro, Eve M. Vavagiakis, Patricio A. Gallardo, Michael D. Niemack, John P. Hughes, Suzanne T. Staggs, Maria Salatino, Nicholas F. Cothard, Lyman A. Page, Cristóbal Sifón, Adriaan J. Duivenvoorden, Brandon S. Hensley, Neelima Sehgal, Zachary Atkins, Mark J. Devlin, Yilun Guan, Arthur Kosowsky, Brian J. Koopman, Zhilei Xu, Erminia Calabrese, Jo Dunkley, Guan, Y, Clark, S, Hensley, B, Gallardo, P, Naess, S, Duell, C, Aiola, S, Atkins, Z, Calabrese, E, Choi, S, Cothard, N, Devlin, M, Duivenvoorden, A, Dunkley, J, Dunner, R, Ferraro, S, Hasselfield, M, Hughes, J, Koopman, B, Kosowsky, A, Madhavacheril, M, Mcmahon, J, Nati, F, Niemack, M, Page, L, Salatino, M, Schaan, E, Sehgal, N, Sifon, C, Staggs, S, Vavagiakis, E, Wollack, E, and Xu, Z
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO), Astrophysics::High Energy Astrophysical Phenomena, Cosmic microwave background, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astronomy & Astrophysics, 01 natural sciences, Pulsar wind nebula, Atomic, symbols.namesake, Particle and Plasma Physics, 0103 physical sciences, Nuclear, Planck, Supernova remnant, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, Cosmic dust, Physics, 010308 nuclear & particles physics, Molecular cloud, Galactic Center, Molecular, Astronomy and Astrophysics, Cosmology, Galactic Science, Astrophysics - Astrophysics of Galaxies, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), Atacama Cosmology Telescope, symbols, Astronomical and Space Sciences, Physical Chemistry (incl. Structural), Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We present arcminute-resolution intensity and polarization maps of the Galactic center made with the Atacama Cosmology Telescope (ACT). The maps cover a 32 deg$^2$ field at 98, 150, and 224 GHz with $\vert l\vert\le4^\circ$, $\vert b\vert\le2^\circ$. We combine these data with Planck observations at similar frequencies to create coadded maps with increased sensitivity at large angular scales. With the coadded maps, we are able to resolve many known features of the Central Molecular Zone (CMZ) in both total intensity and polarization. We map the orientation of the plane-of-sky component of the Galactic magnetic field inferred from the polarization angle in the CMZ, finding significant changes in morphology in the three frequency bands as the underlying dominant emission mechanism changes from synchrotron to dust emission. Selected Galactic center sources, including Sgr A*, the Brick molecular cloud (G0.253+0.016), the Mouse pulsar wind nebula (G359.23-0.82), and the Tornado supernova remnant candidate (G357.7-0.1), are examined in detail. These data illustrate the potential for leveraging ground-based Cosmic Microwave Background polarization experiments for Galactic science., 26 pages, 14 figures, accepted for publication in ApJ
Published: 2021

4. The Atacama Cosmology Telescope: Probing the baryon content of SDSS DR15 galaxies with the thermal and kinematic Sunyaev-Zel’dovich effects

Author: Nick Battaglia, J. P. Hughes, K. Moodley, Erminia Calabrese, Leila R. Vale, David N. Spergel, Michael D. Niemack, Nicholas F. Cothard, R. Hložek, Victoria Calafut, Eve M. Vavagiakis, Lyman A. Page, Rachel Bean, B. Partridge, Shannon M. Duff, S. Ferraro, M. Hilton, J. A. Beall, Gene C. Hilton, Kevin M. Huffenberger, Simone Aiola, Y. Guan, J. R. Bond, Jason E. Austermann, Sigurd Naess, C. Sifon, A. van Engelen, A. Kosowsky, E. Schaan, M. Lokken, J. C. Hill, L. B. Newburgh, S. T. Staggs, Cody J. Duell, Yaqiong Li, J. Van Lanen, Zachary B. Huber, Joel N. Ullom, Alessandro Schillaci, S. Amodeo, Edward J. Wollack, F. Nati, Johannes Hubmayr, Mark J. Devlin, Patricio A. Gallardo, A. J. Duivenvoorden, R. Dunner, Jo Dunkley, Elia S. Battistelli, Steve K. Choi, M. Madhavacheril, Zhilei Xu, Brian J. Koopman, Jeff McMahon, Vavagiakis, E, Gallardo, P, Calafut, V, Amodeo, S, Aiola, S, Austermann, J, Battaglia, N, Battistelli, E, Beall, J, Bean, R, Bond, J, Calabrese, E, Choi, S, Cothard, N, Devlin, M, Duell, C, Duff, S, Duivenvoorden, A, Dunkley, J, Dunner, R, Ferraro, S, Guan, Y, Hill, J, Hilton, G, Hilton, M, Hlozek, R, Huber, Z, Hubmayr, J, Huffenberger, K, Hughes, J, Koopman, B, Kosowsky, A, Li, Y, Lokken, M, Madhavacheril, M, Mcmahon, J, Moodley, K, Naess, S, Nati, F, Newburgh, L, Niemack, M, Page, L, Partridge, B, Schaan, E, Schillaci, A, Sifon, C, Spergel, D, Staggs, S, Ullom, J, Vale, L, Van Engelen, A, Van Lanen, J, Wollack, E, and Xu, Z
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO), Cosmic microwave background, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Atomic, 01 natural sciences, Luminosity, Particle and Plasma Physics, Galaxy groups and clusters, 0103 physical sciences, Optical depth (astrophysics), CMB, Cosmology, SZ Effect, Nuclear, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, Physics, Quantum Physics, 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, Molecular, Nuclear & Particles Physics, Galaxy, Baryon, 13. Climate action, Atacama Cosmology Telescope, Content (measure theory), astro-ph.CO, Astronomical and Space Sciences, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We present high signal-to-noise measurements (up to 12$\sigma$) of the average thermal Sunyaev Zel'dovich (tSZ) effect from optically selected galaxy groups and clusters and estimate their baryon content within a 2.1$^\prime$ radius aperture. Sources from the Sloan Digital Sky Survey (SDSS) Baryon Oscillation Spectroscopic Survey (BOSS) DR15 catalog overlap with 3,700 sq. deg. of sky observed by the Atacama Cosmology Telescope (ACT) from 2008 to 2018 at 150 and 98 GHz (ACT DR5), and 2,089 sq. deg. of internal linear combination component-separated maps combining ACT and $\it{Planck}$ data (ACT DR4). The corresponding optical depths, $\bar{\tau}$, which depend on the baryon content of the halos, are estimated using results from cosmological hydrodynamic simulations assuming an AGN feedback radiative cooling model. We estimate the mean mass of the halos in multiple luminosity bins, and compare the tSZ-based $\bar{\tau}$ estimates to theoretical predictions of the baryon content for a Navarro-Frenk-White profile. We do the same for $\bar{\tau}$ estimates extracted from fits to pairwise baryon momentum measurements of the kinematic Sunyaev-Zel'dovich effect (kSZ) for the same data set obtained in a companion paper. We find that the $\bar{\tau}$ estimates from the tSZ measurements in this work and the kSZ measurements in the companion paper agree within $1\sigma$ for two out of the three disjoint luminosity bins studied, while they differ by 2-3$\sigma$ in the highest luminosity bin. The optical depth estimates account for one third to all of the theoretically predicted baryon content in the halos across luminosity bins. Potential systematic uncertainties are discussed. The tSZ and kSZ measurements provide a step towards empirical Compton-$\bar{y}$-$\bar{\tau}$ relationships to provide new tests of cluster formation and evolution models., Comment: 19 pages, 9 figures
Published: 2021

5. The Atacama Cosmology Telescope: Delensed power spectra and parameters

Author: Johannes Hubmayr, Dongwon Han, Bruce Partridge, Lyman A. Page, Emilie Storer, Simone Aiola, Sigurd Naess, Edward V. Denison, Mark J. Devlin, Anna E. Fox, Arthur Kosowsky, J. Colin Hill, Omar Darwish, Amanda MacInnis, Nicholas Battaglia, Matthew Hasselfield, Mathew S. Madhavacheril, John P. Nibarger, Gene C. Hilton, Thibaut Louis, Federico Nati, Edward J. Wollack, Blake D. Sherwin, Neelima Sehgal, Simone Ferraro, Renée Hložek, John P. Hughes, Michael D. Niemack, Daniel T. Becker, Steve K. Choi, Frank J. Qu, Suzanne T. Staggs, David N. Spergel, Kavilan Moodley, Matt Hilton, Alexander van Engelen, James A. Beall, Alessandro Schillaci, Toshiya Namikawa, Erminia Calabrese, Jo Dunkley, Jeff Van Lanen, Han, D, Sehgal, N, Macinnis, A, van Engelen, A, Sherwin, B, Madhavacheril, M, Aiola, S, Battaglia, N, Beall, J, Becker, D, Calabrese, E, Choi, S, Darwish, O, Denison, E, Devlin, M, Dunkley, J, Ferraro, S, Fox, A, Hasselfield, M, Colin Hill, J, Hilton, G, Hilton, M, Hlozek, R, Hubmayr, J, Hughes, J, Kosowsky, A, van Lanen, J, Louis, T, Moodley, K, Naess, S, Namikawa, T, Nati, F, Nibarger, J, Niemack, M, Page, L, Partridge, B, Qu, F, Schillaci, A, Spergel, D, Staggs, S, Storer, E, Wollack, E, Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and ACT
Subjects: cosmological model, Cosmology and Nongalactic Astrophysics (astro-ph.CO), media_common.quotation_subject, Cosmic microwave background, FOS: Physical sciences, Lambda-CDM model, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, weak gravitational lensing, 01 natural sciences, Atomic, Spectral line, microwaves: background, High Energy Physics - Phenomenology (hep-ph), Particle and Plasma Physics, statistical analysis, gravitation: lens, 0103 physical sciences, Nuclear, cosmic background radiation: power spectrum, Weak gravitational lensing, 010303 astronomy & astrophysics, media_common, Physics, 010308 nuclear & particles physics, Spectral density, cosmological parameters from CMBR, Molecular, Astronomy and Astrophysics, hep-ph, Nuclear & Particles Physics, Cosmological parameters from CMBR, High Energy Physics - Phenomenology, Gravitational lens, background: power spectrum, Sky, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], Atacama Cosmology Telescope, astro-ph.CO, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astronomical and Space Sciences, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We present LCDM cosmological parameter constraints obtained from delensed microwave background power spectra. Lensing maps from a subset of DR4 data from the Atacama Cosmology Telescope (ACT) are used to undo the lensing effect in ACT spectra observed at 150 and 98 GHz. At 150 GHz, we remove the lensing distortion with an effective efficiency of 30% (TT), 30% (EE), 26% (TE) and 20% (BB); this results in detections of the delensing effect at 8.7 sigma (TT), 5.1 sigma (EE), 2.6 sigma (TE), and 2.4 sigma (BB) significance. The combination of 150 and 98 GHz TT, EE, and TE delensed spectra is well fit by a standard LCDM model. We also measure the shift in best-fit parameters when fitting delensed versus lensed spectra; while this shift does not inform our ability to measure cosmological parameters, it does provide a three-way consistency check among the lensing inferred from the best-fit parameters, the lensing in the CMB power spectrum, and the reconstructed lensing map. This shift is predicted to be zero when fitting with the correct model since both lensed and delensed spectra originate from the same region of sky. Fitting with a LCDM model and marginalizing over foregrounds, we find that the shift in cosmological parameters is consistent with zero. Our results show that gravitational lensing of the microwave background is internally consistent within the framework of the standard cosmological model., 29 pages, 17 figures, version matches that accepted by JCAP
Published: 2021
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6. The Atacama Cosmology Telescope: Detection of the pairwise kinematic Sunyaev-Zel’dovich effect with SDSS DR15 galaxies

Author: C. Sifon, S. T. Staggs, E. Schaan, Brian J. Koopman, Edward J. Wollack, M. Lokken, Jeff McMahon, Michael D. Niemack, Johannes Hubmayr, A. van Engelen, Mark J. Devlin, Patricio A. Gallardo, A. Kosowsky, Nicholas F. Cothard, Victoria Calafut, Elia S. Battistelli, Yaqiong Li, Nick Battaglia, J. Van Lanen, Joel N. Ullom, M. Hilton, Kevin M. Huffenberger, David N. Spergel, F. Nati, Zhilei Xu, Gene C. Hilton, Y. Guan, Alessandro Schillaci, Erminia Calabrese, Jason E. Austermann, Jo Dunkley, Zachary B. Huber, A. J. Duivenvoorden, S. Amodeo, K. Moodley, Leila R. Vale, R. Hložek, Eve M. Vavagiakis, R. Dunner, M. Madhavacheril, Steve K. Choi, Sigurd Naess, J. P. Hughes, J. C. Hill, J. R. Bond, Shannon M. Duff, S. Ferraro, Cody J. Duell, Rachel Bean, B. Partridge, J. A. Beall, L. B. Newburgh, Lyman A. Page, Simone Aiola, Calafut, V, Gallardo, P, Vavagiakis, E, Amodeo, S, Aiola, S, Austermann, J, Battaglia, N, Battistelli, E, Beall, J, Bean, R, Bond, J, Calabrese, E, Choi, S, Cothard, N, Devlin, M, Duell, C, Duff, S, Duivenvoorden, A, Dunkley, J, Dunner, R, Ferraro, S, Guan, Y, Hill, J, Hilton, G, Hilton, M, Hlozek, R, Huber, Z, Hubmayr, J, Huffenberger, K, Hughes, J, Koopman, B, Kosowsky, A, Li, Y, Lokken, M, Madhavacheril, M, Mcmahon, J, Moodley, K, Naess, S, Nati, F, Newburgh, L, Niemack, M, Page, L, Partridge, B, Schaan, E, Schillaci, A, Sifon, C, Spergel, D, Staggs, S, Ullom, J, Vale, L, Van Engelen, A, Van Lanen, J, Wollack, E, and Xu, Z
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO), media_common.quotation_subject, Cosmic microwave background, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Sunyaev–Zel'dovich effect, 01 natural sciences, Atomic, Cosmology, Photometry (optics), Galaxy groups and clusters, Particle and Plasma Physics, CMB, Cosmology, SZ Effect, 0103 physical sciences, Nuclear, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, media_common, Physics, Quantum Physics, 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, Molecular, Nuclear & Particles Physics, Galaxy, 13. Climate action, Sky, Atacama Cosmology Telescope, astro-ph.CO, Astronomical and Space Sciences, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We present a 5.4$\sigma$ detection of the pairwise kinematic Sunyaev-Zel'dovich (kSZ) effect using Atacama Cosmology Telescope (ACT) and $\it{Planck}$ CMB observations in combination with Luminous Red Galaxy samples from the Sloan Digital Sky Survey (SDSS) DR15 catalog. Results are obtained using three ACT CMB maps: co-added 150 GHz and 98 GHz maps, combining observations from 2008-2018 (ACT DR5), which overlap with SDSS DR15 over 3,700 sq. deg., and a component-separated map using night-time only observations from 2014-2015 (ACT DR4), overlapping with SDSS DR15 over 2,089 sq. deg. Comparisons of the results from these three maps provide consistency checks in relation to potential frequency-dependent foreground contamination. A total of 343,647 galaxies are used as tracers to identify and locate galaxy groups and clusters from which the kSZ signal is extracted using aperture photometry. We consider the impact of various aperture photometry assumptions and covariance estimation methods on the signal extraction. Theoretical predictions of the pairwise velocities are used to obtain best-fit, mass-averaged, optical depth estimates for each of five luminosity-selected tracer samples. A comparison of the kSZ-derived optical depth measurements obtained here to those derived from the thermal SZ effect for the same sample is presented in a companion paper., Comment: 17 pages, 10 figures. Updated to match published version in PRD
Published: 2021

7. The Atacama Cosmology Telescope: Summary of DR4 and DR5 Data Products and Data Access

Author: Joseph E. Golec, Shannon M. Duff, Maya Mallaby-Kay, Thibaut Louis, Lyman A. Page, Erminia Calabrese, E. V. Denison, Yilun Guan, Edward J. Wollack, Kavilan Moodley, Jason E. Austermann, Daniel T. Becker, John P. Hughes, Joel N. Ullom, Leila R. Vale, Simone Aiola, Dongwon Han, C. Sifon, John P. Nibarger, Sara M. Simon, Toshiya Namikawa, Kyra Fichman, Zhilei Xu, Blake D. Sherwin, Jo Dunkley, Maria Salatino, Brian J. Koopman, Emmanuel Schaan, Kevin M. Huffenberger, Johannes Hubmayr, Jeff McMahon, Matt Hilton, Simone Ferraro, Matthew Hasselfield, Laura Newburgh, Mark J. Devlin, Zachary Atkins, Patricio A. Gallardo, James A. Beall, Mathew S. Madhavacheril, Kevin T. Crowley, J. Colin Hill, Steve K. Choi, Suzanne T. Staggs, Amanda MacInnis, Alessandro Schillaci, Adriaan J. Duivenvoorden, Omar Darwish, Grace E. Chesmore, Neelima Sehgal, S. Amodeo, Gene C. Hilton, Emilie R. Storer, Sigurd Naess, Jeff Van Lanen, J. Richard Bond, Alexander van Engelen, Federico Nati, Michael D. Niemack, Renée Hložek, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Mallaby-Kay, M, Atkins, Z, Aiola, S, Amodeo, S, Austermann, J, Beall, J, Becker, D, Bond, J, Calabrese, E, Chesmore, G, Choi, S, Crowley, K, Darwish, O, Denison, E, Devlin, M, Duff, S, Duivenvoorden, A, Dunkley, J, Ferraro, S, Fichman, K, Gallardo, P, Golec, J, Guan, Y, Han, D, Hasselfield, M, Hill, J, Hilton, G, Hilton, M, Hlozek, R, Hubmayr, J, Huffenberger, K, Hughes, J, Koopman, B, Louis, T, Macinnis, A, Madhavacheril, M, Mcmahon, J, Moodley, K, Naess, S, Namikawa, T, Nati, F, Newburgh, L, Nibarger, J, Niemack, M, Page, L, Salatino, M, Schaan, E, Schillaci, A, Sehgal, N, Sherwin, B, Sifon, C, Simon, S, Staggs, S, Storer, E, Ullom, J, Van Engelen, A, Van Lanen, J, Vale, L, Wollack, E, and Xu, Z
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO), Data products, Art history, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astronomy & Astrophysics, 01 natural sciences, Atomic, Public access, Particle and Plasma Physics, 0103 physical sciences, Nuclear, 010303 astronomy & astrophysics, Order (virtue), Astrophysics::Galaxy Astrophysics, Physics, 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, Molecular, Astronomy and Astrophysics, CMB, Cosmology, Space and Planetary Science, Atacama Cosmology Telescope, astro-ph.CO, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astronomical and Space Sciences, Physical Chemistry (incl. Structural), Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: Two recent large data releases for the Atacama Cosmology Telescope (ACT), called DR4 and DR5, are available for public access. These data include temperature and polarization maps that cover nearly half the sky at arcminute resolution in three frequency bands; lensing maps and component-separated maps covering ~ 2,100 deg^2 of sky; derived power spectra and cosmological likelihoods; a catalog of over 4,000 galaxy clusters; and supporting ancillary products including beam functions and masks. The data and products are described in a suite of ACT papers; here we provide a summary. In order to facilitate ease of access to these data we present a set of Jupyter IPython notebooks developed to introduce users to DR4, DR5, and the tools needed to analyze these data. The data products (excluding simulations) and the set of notebooks are publicly available on the NASA Legacy Archive for Microwave Background Data Analysis (LAMBDA); simulation products are available on the National Energy Research Scientific Computing Center (NERSC)., Accepted to ApJS. 21 pages, 8 figures. Data and notebooks available on LAMBDA https://lambda.gsfc.nasa.gov/product/act/
Published: 2021
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8. The Atacama Cosmology Telescope: Detection of Millimeter-wave Transient Sources

Author: Mathew S. Madhavacheril, Mark Halpern, Rolando Dünner, Federico Nati, Mark J. Devlin, Patricio A. Gallardo, Neelima Sehgal, Kevin M. Huffenberger, Michael D. Niemack, Megan Gralla, Erminia Calabrese, Nicholas F. Cothard, J. Colin Hill, Nick Battaglia, Sigurd Naess, Brian J. Koopman, Edward J. Wollack, Jeff McMahon, Adriaan J. Duivenvoorden, Jo Dunkley, Zhilei Xu, Bruce Partridge, Maria Salatino, Steve K. Choi, Yilun Guan, Matt Hilton, Arthur Kosowsky, J. Richard Bond, Suzanne T. Staggs, David N. Spergel, Lyman A. Page, Cody J. Duell, Naess, S, Battaglia, N, Richard Bond, J, Calabrese, E, Choi, S, Cothard, N, Devlin, M, Duell, C, Duivenvoorden, A, Dunkley, J, Dunner, R, Gallardo, P, Gralla, M, Guan, Y, Halpern, M, Colin Hill, J, Hilton, M, Huffenberger, K, Koopman, B, Kosowsky, A, Madhavacheril, M, Mcmahon, J, Nati, F, Niemack, M, Page, L, Partridge, B, Salatino, M, Sehgal, N, Spergel, D, Staggs, S, Wollack, E, and Xu, Z
Subjects: Physics, Spectral index, 010308 nuclear & particles physics, Flux, Astronomy and Astrophysics, Astrophysics, 01 natural sciences, Cosmology, Stars, 13. Climate action, Space and Planetary Science, Coincident, 0103 physical sciences, Atacama Cosmology Telescope, Extremely high frequency, transient millimeter-wave sources, cosmology, Maximum flux, 010303 astronomy & astrophysics
Abstract: We report on the serendipitous discovery of three transient millimeter-wave sources using data from the Atacama Cosmology Telescope. The first, detected at R.A. = 273.8138, decl. = −49.4628 at ~50σ total, brightened from less than 5 mJy to at least 1100 mJy at 150 GHz with an unknown rise time shorter than 13 days, during which the increase from 250 mJy to 1100 mJy took only 8 minutes. Maximum flux was observed on 2019 November 8. The source's spectral index in flux between 90–150 GHz was positive, α = 1.5 ± 0.2. The second, detected at R.A. = 105.1584, decl. = −11.2434 at ~20σ total, brightened from less than 20 mJy to at least 300 mJy at 150 GHz with an unknown rise time shorter than 8 days. Maximum flux was observed on 2019 December 15. Its spectral index was also positive, α = 1.8 ± 0.2. The third, detected at R.A. = 301.9952, decl. = 16.1652 at ~40σ total, brightened from less than 8 mJy to at least 300 mJy at 150 GHz over a day or less but decayed over a few days. Maximum flux was observed on 2018 September 11. Its spectrum was approximately flat, with a spectral index of α = −0.2 ± 0.1. None of the sources were polarized to the limits of these measurements. The two rising-spectrum sources are coincident in position with M and K stars, while the third is coincident with a G star.
Published: 2021

9. MERGHERS pilot: MeerKAT discovery of diffuse emission in nine massive Sunyaev–Zel’dovich-selected galaxy clusters from ACT

Author: Alessandro Schillaci, S. Amodeo, Matt Hilton, Kavilan Moodley, Kevin M. Huffenberger, L. A. Page, Mark J. Devlin, Laura Newburgh, Zhilei Xu, F. de Gasperin, Christoph Pfrommer, Sigurd Naess, Kaustuv Basu, Maria Salatino, D. Crichton, Edward J. Wollack, B. Partridge, Nadeem Oozeer, Oleg Smirnov, Chiara Ferrari, C. Sifon, Andrew J. Baker, Brian J. Koopman, John P. Hughes, Denisha S. Pillay, Tony Mroczkowski, Kenda Knowles, Sinenhlanhla P. Sikhosana, Federico Nati, Joseph Louis LAGRANGE (LAGRANGE), Université Côte d'Azur (UCA)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Observatoire de la Côte d'Azur, COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Knowles, K, Pillay, D, Amodeo, S, Baker, A, Basu, K, Crichton, D, De Gasperin, F, Devlin, M, Ferrari, C, Hilton, M, Huffenberger, K, Hughes, J, Koopman, B, Moodley, K, Mroczkowski, T, Naess, S, Nati, F, Newburgh, L, Oozeer, N, Page, L, Partridge, B, Pfrommer, C, Salatino, M, Schillaci, A, Sifon, C, Smirnov, O, Sikhosana, S, Wollack, E, and Xu, Z
Subjects: Physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), 010308 nuclear & particles physics, radio continuum: general, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, 7. Clean energy, 01 natural sciences, Redshift, Radio halo, Space and Planetary Science, Observatory, galaxies: clusters: general, 0103 physical sciences, Cluster (physics), Halo, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], 010303 astronomy & astrophysics, Galaxy cluster, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: The MeerKAT Exploration of Relics, Giant Halos, and Extragalactic Radio Sources (MERGHERS) survey is a planned project to study a large statistical sample of galaxy clusters with the MeerKAT observatory. Here we present the results of a 16--hour pilot project, observed in response to the 2019 MeerKAT Shared Risk proposal call, to test the feasibility of using MeerKAT for a large cluster study using short (0.2--2.1\,hour) integration times. The pilot focuses on 1.28\,GHz observations of 13 massive, low-to-intermediate redshift ($0.22 < z < 0.65$) clusters from the Sunyaev-Zel'dovich-selected Atacama Cosmology Telescope (ACT) DR5 catalogue that show multiwavelength indications of dynamical disturbance. With a 70 per cent detection rate (9/13 clusters), this pilot study validates our proposed MERGHERS observing strategy and provides twelve detections of diffuse emission, eleven of them new, indicating the strength of MeerKAT for such types of studies. The detections (signal-to-noise ratio $\gtrsim6$) are summarised as follows: two systems host both relic(s) and a giant radio halo, five systems host radio halos, and two have candidate radio halos. Power values, $k$-corrected to 1.4 GHz assuming a fiducial spectral index of $��= -1.3 \pm 0.4$, are consistent with known radio halo and relic scaling relations., 9 pages, 4 figures, 2 tables. Accepted to MNRAS
Published: 2021
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10. The Atacama Cosmology Telescope: DR4 maps and cosmological parameters

Author: Simone Aiola, Suzanne T. Staggs, C. Sifon, J. Richard Bond, Martine Lokken, Bruce Partridge, Brittany Fuzia, Giampaolo Pisano, Matthew Hasselfield, Vincent Lakey, Shannon M. Duff, H. M. Cho, Naomi Robertson, Brandon S. Hensley, Laura Newburgh, Alexander van Engelen, Jesus Rivera, Kirsten Hall, Matt Hilton, Susan E. Clark, Kavilan Moodley, Rachel Bean, Kent D. Irwin, David Alonso, Andrina Nicola, Edward J. Wollack, Mathew S. Madhavacheril, Dhaneshwar D. Sunder, Brian J. Koopman, David N. Spergel, Rolando Dünner, Jakob M. Helton, Toshiya Namikawa, Zhilei Xu, Sigurd Naess, Leopoldo Infante, Adam D. Hincks, Emily Grace, Renée Hložek, Ningfeng Zhu, Felipe Rojas, Jeff McMahon, Grace E. Chesmore, Jacob Klein, Max Fankhanel, Frank J. Qu, Heather Prince, S. Henderson, Yaqiong Li, Timothy D. Morton, Dale Li, Jason E. Austermann, E. V. Denison, Jason R. Stevens, Robert Thornton, Kenda Knowles, Christine G. Pappas, Amanda MacInnis, Yuhan Wang, Joseph E. Golec, Precious Sikhosana, Adriaan J. Duivenvoorden, Neelima Sehgal, John P. Hughes, Felipe Maldonado, Eve M. Vavagiakis, Peter Charles Hargrave, Sarah Marie Bruno, Michael R. Nolta, Zack Li, Dongwon Han, John P. Nibarger, Sara M. Simon, Jon Sievers, Kasey Wagoner, Blake D. Sherwin, J. Colin Hill, Lyman A. Page, Thibaut Louis, John Orlowski-Sherer, Fernando Zago, Arthur Kosowsky, Benjamin L. Schmitt, Carlos Sierra, Felipe Menanteau, Loïc Maurin, B. Thorne, Vera Gluscevic, Eric R. Switzer, Kevin M. Huffenberger, Marius Lungu, Jo Dunkley, Emilie R. Storer, Felipe Carrero, Gene C. Hilton, Maya Mallaby-Kay, Steve K. Choi, Roberto Puddu, Phumlani Phakathi, Jeff Van Lanen, Jonathan T. Ward, Omar Darwish, Yilun Guan, Maria Salatino, Daniel T. Becker, Anna E. Fox, James A. Beall, Kevin T. Crowley, Federico Nati, Carole Tucker, Alessandro Schillaci, Graeme E. Addison, Shuay-Pwu Patty Ho, Elio Angile, S. Amodeo, Erminia Calabrese, Leila R. Vale, Megan Gralla, Mandana Amiri, Nick Battaglia, Rahul Datta, Peter A. R. Ade, Devin Crichton, Michael D. Niemack, Nicholas F. Cothard, Victoria Calafut, Jesse Treu, Thomas Essinger-Hileman, Cody J. Duell, Luis E. Campusano, Danica Marsden, Rebecca Jackson, Emmanuel Schaan, Johannes Hubmayr, Mark Halpern, Simone Ferraro, Hy Trac, Mark J. Devlin, Patricio A. Gallardo, Maximilian H. Abitbol, Taylor Baildon, Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), ACT, Aiola, S, Calabrese, E, Maurin, L, Naess, S, Schmitt, B, Abitbol, M, Addison, G, Ade, P, Alonso, D, Amiri, M, Amodeo, S, Angile, E, Austermann, J, Baildon, T, Battaglia, N, Beall, J, Bean, R, Becker, D, Richard Bond, J, Bruno, S, Calafut, V, Campusano, L, Carrero, F, Chesmore, G, Cho, H, Choi, S, Clark, S, Cothard, N, Crichton, D, Crowley, K, Darwish, O, Datta, R, Denison, E, Devlin, M, Duell, C, Duff, S, Duivenvoorden, A, Dunkley, J, Dunner, R, Essinger-Hileman, T, Fankhanel, M, Ferraro, S, Fox, A, Fuzia, B, Gallardo, P, Gluscevic, V, Golec, J, Grace, E, Gralla, M, Guan, Y, Hall, K, Halpern, M, Han, D, Hargrave, P, Hasselfield, M, Helton, J, Henderson, S, Hensley, B, Colin Hill, J, Hilton, G, Hilton, M, Hincks, A, Hlozek, R, Ho, S, Hubmayr, J, Huffenberger, K, Hughes, J, Infante, L, Irwin, K, Jackson, R, Klein, J, Knowles, K, Koopman, B, Kosowsky, A, Lakey, V, Li, D, Li, Y, Li, Z, Lokken, M, Louis, T, Lungu, M, Macinnis, A, Madhavacheril, M, Maldonado, F, Mallaby-Kay, M, Marsden, D, Mcmahon, J, Menanteau, F, Moodley, K, Morton, T, Namikawa, T, Nati, F, Newburgh, L, Nibarger, J, Nicola, A, Niemack, M, Nolta, M, Orlowski-Sherer, J, Page, L, Pappas, C, Partridge, B, Phakathi, P, Pisano, G, Prince, H, Puddu, R, Qu, F, Rivera, J, Robertson, N, Rojas, F, Salatino, M, Schaan, E, Schillaci, A, Sehgal, N, Sherwin, B, Sierra, C, Sievers, J, Sifon, C, Sikhosana, P, Simon, S, Spergel, D, Staggs, S, Stevens, J, Storer, E, Sunder, D, Switzer, E, Thorne, B, Thornton, R, Trac, H, Treu, J, Tucker, C, Vale, L, van Engelen, A, van Lanen, J, Vavagiakis, E, Wagoner, K, Wang, Y, Ward, J, Wollack, E, Xu, Z, Zago, F, and Zhu, N
Subjects: CMBR polarisation, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Cosmic microwave background, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Cosmology, symbols.namesake, 0103 physical sciences, CMBR experiments, Planck, Physics, Spectral index, 010308 nuclear & particles physics, Spectral density, Astronomy and Astrophysics, CMB cold spot, Baryon, Cosmological parameters from CMBR, 13. Climate action, Atacama Cosmology Telescope, symbols, CMBR experiment, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We present new arcminute-resolution maps of the Cosmic Microwave Background temperature and polarization anisotropy from the Atacama Cosmology Telescope, using data taken from 2013-2016 at 98 and 150 GHz. The maps cover more than 17,000 deg$^2$, the deepest 600 deg$^2$ with noise levels below 10 $\mu$K-arcmin. We use the power spectrum derived from almost 6,000 deg$^2$ of these maps to constrain cosmology. The ACT data enable a measurement of the angular scale of features in both the divergence-like polarization and the temperature anisotropy, tracing both the velocity and density at last-scattering. From these one can derive the distance to the last-scattering surface and thus infer the local expansion rate, $H_0$. By combining ACT data with large-scale information from WMAP we measure $H_0 = 67.6 \pm 1.1$ km/s/Mpc, at 68% confidence, in excellent agreement with the independently-measured Planck satellite estimate (from ACT alone we find $H_0 = 67.9 \pm 1.5$ km/s/Mpc). The $\Lambda$CDM model provides a good fit to the ACT data, and we find no evidence for deviations: both the spatial curvature, and the departure from the standard lensing signal in the spectrum, are zero to within 1$\sigma$; the number of relativistic species, the primordial Helium fraction, and the running of the spectral index are consistent with $\Lambda$CDM predictions to within $1.5 - 2.2\sigma$. We compare ACT, WMAP, and Planck at the parameter level and find good consistency; we investigate how the constraints on the correlated spectral index and baryon density parameters readjust when adding CMB large-scale information that ACT does not measure. The DR4 products presented here will be publicly released on the NASA Legacy Archive for Microwave Background Data Analysis., Comment: 33 pages, 24 figures, products available on the NASA LAMBDA website, version accepted for publication in JCAP
Published: 2020
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11. Atacama Cosmology Telescope: component-separated maps of CMB temperature and the thermal Sunyaev-Zel’dovich effect

Author: Simone Aiola, Michael D. Niemack, Federico Nati, C. Sifon, Brian J. Koopman, Kavilan Moodley, Victoria Calafut, Graeme E. Addison, Jeff McMahon, Matthew Hasselfield, Matt Hilton, Arthur Kosowsky, Nicholas Battaglia, Erminia Calabrese, Alexander van Engelen, Edward J. Wollack, David N. Spergel, Marius Lungu, Joanna Dunkley, J. Richard Bond, Renée Hložek, Alessandro Schillaci, Suzanne T. Staggs, Eve M. Vavagiakis, Kevin M. Huffenberger, Shuay-Pwu Patty Ho, Emmanuel Schaan, Mark Halpern, Simone Ferraro, Vera Gluscevic, Mark J. Devlin, Mathew S. Madhavacheril, Patricio A. Gallardo, Thibaut Louis, Zhilei Xu, Taylor Baildon, Neelima Sehgal, Steve K. Choi, Bruce Partridge, Amanda MacInnis, Lyman A. Page, Loïc Maurin, J. Colin Hill, Naomi Robertson, Blake D. Sherwin, Rachel Bean, Emilie R. Storer, Sigurd Naess, Adam D. Hincks, Rahul Datta, Dongwon Han, Martine Lokken, John P. Hughes, Omar Darwish, Rolando Dünner, Sara M. Simon, Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Madhavacheril, M, Hill, J, Naess, S, Addison, G, Aiola, S, Baildon, T, Battaglia, N, Bean, R, Bond, J, Calabrese, E, Calafut, V, Choi, S, Darwish, O, Datta, R, Devlin, M, Dunkley, J, Dunner, R, Ferraro, S, Gallardo, P, Gluscevic, V, Halpern, M, Han, D, Hasselfield, M, Hilton, M, Hincks, A, Hlozek, R, Ho, S, Huffenberger, K, Hughes, J, Koopman, B, Kosowsky, A, Lokken, M, Louis, T, Lungu, M, Macinnis, A, Maurin, L, Mcmahon, J, Moodley, K, Nati, F, Niemack, M, Page, L, Partridge, B, Robertson, N, Sehgal, N, Schaan, E, Schillaci, A, Sherwin, B, Sifon, C, Simon, S, Spergel, D, Staggs, S, Storer, E, Van Engelen, A, Vavagiakis, E, Wollack, E, and Xu, Z
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO), astro-ph.GA, Cosmic microwave background, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, CMB, Sunyaev–Zel'dovich effect, Atomic, 01 natural sciences, symbols.namesake, Particle and Plasma Physics, Cosmic infrared background, 0103 physical sciences, Nuclear, Black-body radiation, Planck, 010306 general physics, Astrophysics::Galaxy Astrophysics, Physics, Quantum Physics, 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, Molecular, Astrophysics - Astrophysics of Galaxies, Nuclear & Particles Physics, Galaxy, Cosmology, 13. Climate action, Astrophysics of Galaxies (astro-ph.GA), Atacama Cosmology Telescope, astro-ph.CO, symbols, Spectral energy distribution, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astronomical and Space Sciences, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: Optimal analyses of many signals in the cosmic microwave background (CMB) require map-level extraction of individual components in the microwave sky, rather than measurements at the power spectrum level alone. To date, nearly all map-level component separation in CMB analyses has been performed exclusively using satellite data. In this paper, we implement a component separation method based on the internal linear combination (ILC) approach which we have designed to optimally account for the anisotropic noise (in the 2D Fourier domain) often found in ground-based CMB experiments. Using this method, we combine multi-frequency data from the Planck satellite and the Atacama Cosmology Telescope Polarimeter (ACTPol) to construct the first wide-area, arcminute-resolution component-separated maps (covering approximately 2100 sq. deg.) of the CMB temperature anisotropy and the thermal Sunyaev-Zel'dovich (tSZ) effect sourced by the inverse-Compton scattering of CMB photons off hot, ionized gas. Our ILC pipeline allows for explicit deprojection of various contaminating signals, including a modified blackbody approximation of the cosmic infrared background (CIB) spectral energy distribution. The cleaned CMB maps will be a useful resource for CMB lensing reconstruction, kinematic SZ cross-correlations, and primordial non-Gaussianity studies. The tSZ maps will be used to study the pressure profiles of galaxies, groups, and clusters through cross-correlations with halo catalogs, with dust contamination controlled via CIB deprojection. The data products described in this paper are available on LAMBDA., Comment: 24 pages, 11 figures, matches version accepted by PRD. Data products are available on LAMBDA at https://lambda.gsfc.nasa.gov/product/act/act_dr4_derived_maps_get.cfm
Published: 2020
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12. The cross correlation of the ABS and ACT maps

Author: Johannes Hubmayr, Mathew S. Madhavacheril, Shannon M. Duff, Sigurd Naess, Emilie Storer, Lucas Parker, Edward J. Wollack, Jonathan Sievers, Suzanne T. Staggs, Akito Kusaka, Patricio A. Gallardo, Thibaut Louis, Lyman A. Page, Sara M. Simon, Maria Salatino, Simone Aiola, Joseph W. Fowler, Joanna Dunkley, David Alonso, Thomas Essinger-Hileman, John W. Appel, Jeff McMahon, Kevin T. Crowley, Bruce Partridge, Shuay-Pwu Patty Ho, Michael D. Niemack, Cristóbal Sifón, J. Richard Bond, Zack Li, Erminia Calabrese, Steve K. Choi, Federico Nati, Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Li, Z, Naess, S, Aiola, S, Alonso, D, Appel, J, Bond, J, Calabrese, E, Choi, S, Crowley, K, Essinger-Hileman, T, Duff, S, Dunkley, J, Fowler, J, Gallardo, P, Ho, S, Hubmayr, J, Kusaka, A, Louis, T, Madhavacheril, M, Mcmahon, J, Nati, F, Niemack, M, Page, L, Parker, L, Partridge, B, Salatino, M, Sievers, J, Sifon, C, Simon, S, Staggs, S, Storer, E, Wollack, E, and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO), Cosmic microwave background, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Cosmology, Spectral line, symbols.namesake, 0103 physical sciences, Planck, 010306 general physics, 010303 astronomy & astrophysics, CMBR polarization, Physics, Cross-correlation, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, Polarization (waves), Atacama Cosmology Telescope, symbols, CMBR experiment, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Noise (radio), CMBR detector, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: One of the most important checks for systematic errors in CMB studies is the cross correlation of maps made by independent experiments. In this paper we report on the cross correlation between maps from the Atacama B-mode Search (ABS) and Atacama Cosmology Telescope (ACT) experiments in both temperature and polarization. These completely different measurements have a clear correlation with each other and with the Planck satellite in both the EE and TE spectra at $\ell, Comment: 7 pages, 5 figures. For an interactive demonstration of the methods, see https://colab.research.google.com/drive/1CnMGLn-J3pySv8A9ffNWDSlXlJWMrp2W
Published: 2020
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13. The Atacama Cosmology Telescope: A Measurement of the Cosmic Microwave Background Power Spectra at 98 and 150 GHz

Author: Kavilan Moodley, Emilie R. Storer, Simone Aiola, Phumlani Phakathi, Jeff Van Lanen, E. Grace, Stefania Amodeo, Felipe Rojas, Yaqiong Li, Nick Battaglia, Precious Sikhosana, Suzanne T. Staggs, Vera Gluscevic, Robert Thornton, Benjamin L. Schmitt, Christine G. Pappas, Rolando Dünner, Danica Marsden, Yilun Guan, Felipe Carrero, Blake D. Sherwin, Sigurd Naess, Leopoldo Infante, Adam D. Hincks, Toshiya Namikawa, Zhilei Xu, Brittany Fuzia, Graeme E. Addison, Kasey Wagoner, Daniel T. Becker, J. Richard Bond, Jason E. Austermann, Sarah Marie Bruno, Matthew Hasselfield, Naomi Robertson, Jesse Treu, Vincent Lakey, John P. Nibarger, Timothy D. Morton, Sara M. Simon, David N. Spergel, Jesus Rivera, Michael R. Nolta, Zack Li, Shawn W. Henderson, Max Fankhanel, Martine Lokken, B. Thorne, Mark J. Devlin, Thomas Essinger-Hileman, James A. Beall, Yuhan Wang, Kevin T. Crowley, John Orlowski-Sherer, Bruce Partridge, Adriaan J. Duivenvoorden, Laura Newburgh, Grace E. Chesmore, Alessandro Schillaci, Jon Sievers, Dhaneshwar D. Sunder, Federico Nati, Rahul Datta, Dale Li, Shuay-Pwu Patty Ho, Shannon M. Duff, Edward V. Denison, Peter A. R. Ade, Mathew S. Madhavacheril, Maya Mallaby-Kay, Erminia Calabrese, Roberto Puddu, J. Colin Hill, Elio Angile, Jo Dunkley, Omar Darwish, Kenda Knowles, Marius Lungu, Megan Gralla, Susan E. Clark, Jeff Klein, Fernando Zago, Dongwon Han, Brandon S. Hensley, Devin Crichton, Renée Hložek, Peter Charles Hargrave, Frank J. Qu, Neelima Sehgal, Leila R. Vale, Matt Hilton, Gene C. Hilton, Joseph E. Golec, Heather Prince, Mandana Amiri, Alexander van Engelen, Maria Salatino, Loïc Maurin, Andrina Nicola, Lyman A. Page, Thibaut Louis, Steve K. Choi, Michael D. Niemack, Eve M. Vavagiakis, Nicholas F. Cothard, Victoria Calafut, Jonathan T. Ward, Carole Tucker, Arthur Kosowsky, Kevin M. Huffenberger, Kent D. Irwin, Hsiao-Mei Cho, Edward J. Wollack, Anna E. Fox, Ningfeng Zhu, Amanda MacInnis, Felipe Maldonado, Brian J. Koopman, Jeff McMahon, Cristóbal Sifón, Emmanuel Schaan, Johannes Hubmayr, Mark Halpern, Simone Ferraro, Hy Trac, Patricio A. Gallardo, Maximilian H. Abitbol, Taylor Baildon, Luis E. Campusano, Rebecca Jackson, Carlos Sierra, Felipe Menanteau, Jason R. Stevens, John P. Hughes, Cody J. Duell, Eric R. Switzer, Kirsten Hall, Rachel Bean, David Alonso, Choi, S, Hasselfield, M, Ho, S, Koopman, B, Lungu, M, Abitbol, M, Addison, G, Ade, P, Aiola, S, Alonso, D, Amiri, M, Amodeo, S, Angile, E, Austermann, J, Baildon, T, Battaglia, N, Beall, J, Bean, R, Becker, D, Richard Bond, J, Bruno, S, Calabrese, E, Calafut, V, Campusano, L, Carrero, F, Chesmore, G, Cho, H, Clark, S, Cothard, N, Crichton, D, Crowley, K, Darwish, O, Datta, R, Denison, E, Devlin, M, Duell, C, Duff, S, Duivenvoorden, A, Dunkley, J, Dunner, R, Essinger-Hileman, T, Fankhanel, M, Ferraro, S, Fox, A, Fuzia, B, Gallardo, P, Gluscevic, V, Golec, J, Grace, E, Gralla, M, Guan, Y, Hall, K, Halpern, M, Han, D, Hargrave, P, Henderson, S, Hensley, B, Colin Hill, J, Hilton, G, Hilton, M, Hincks, A, Hlozek, R, Hubmayr, J, Huffenberger, K, Hughes, J, Infante, L, Irwin, K, Jackson, R, Klein, J, Knowles, K, Kosowsky, A, Lakey, V, Li, D, Li, Y, Li, Z, Lokken, M, Louis, T, Macinnis, A, Madhavacheril, M, Maldonado, F, Mallaby-Kay, M, Marsden, D, Maurin, L, Mcmahon, J, Menanteau, F, Moodley, K, Morton, T, Naess, S, Namikawa, T, Nati, F, Newburgh, L, Nibarger, J, Nicola, A, Niemack, M, Nolta, M, Orlowski-Sherer, J, Page, L, Pappas, C, Partridge, B, Phakathi, P, Prince, H, Puddu, R, Qu, F, Rivera, J, Robertson, N, Rojas, F, Salatino, M, Schaan, E, Schillaci, A, Schmitt, B, Sehgal, N, Sherwin, B, Sierra, C, Sievers, J, Sifon, C, Sikhosana, P, Simon, S, Spergel, D, Staggs, S, Stevens, J, Storer, E, Sunder, D, Switzer, E, Thorne, B, Thornton, R, Trac, H, Treu, J, Tucker, C, Vale, L, van Engelen, A, van Lanen, J, Vavagiakis, E, Wagoner, K, Wang, Y, Ward, J, Wollack, E, Xu, Z, Zago, F, Zhu, N, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), and ACT
Subjects: Physics, CMBR polarisation, Cosmology and Nongalactic Astrophysics (astro-ph.CO), 010308 nuclear & particles physics, Cosmic microwave background, Library science, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Cosmological parameters from CMBR, 0103 physical sciences, Atacama Cosmology Telescope, CMBR experiment, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics::Galaxy Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We present the temperature and polarization angular power spectra of the CMB measured by the Atacama Cosmology Telescope (ACT) from 5400 deg$^2$ of the 2013-2016 survey, which covers $>$15000 deg$^2$ at 98 and 150 GHz. For this analysis we adopt a blinding strategy to help avoid confirmation bias and, related to this, show numerous checks for systematic error done before unblinding. Using the likelihood for the cosmological analysis we constrain secondary sources of anisotropy and foreground emission, and derive a "CMB-only" spectrum that extends to $\ell=4000$. At large angular scales, foreground emission at 150 GHz is $\sim$1% of TT and EE within our selected regions and consistent with that found by Planck. Using the same likelihood, we obtain the cosmological parameters for $\Lambda$CDM for the ACT data alone with a prior on the optical depth of $\tau=0.065\pm0.015$. $\Lambda$CDM is a good fit. The best-fit model has a reduced $\chi^2$ of 1.07 (PTE=0.07) with $H_0=67.9\pm1.5$ km/s/Mpc. We show that the lensing BB signal is consistent with $\Lambda$CDM and limit the celestial EB polarization angle to $\psi_P =-0.07^{\circ}\pm0.09^{\circ}$. We directly cross correlate ACT with Planck and observe generally good agreement but with some discrepancies in TE. All data on which this analysis is based will be publicly released., Comment: 44 pages, 27 figures, products available on the NASA LAMBDA website, version accepted for publication in JCAP
Published: 2020
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14. Atacama Cosmology Telescope: Constraints on cosmic birefringence

Author: Michael D. Niemack, Mathew S. Madhavacheril, Sigurd Naess, J. Richard Bond, Adam D. Hincks, Neelima Sehgal, Kavilan Moodley, Loïc Maurin, Thibaut Louis, Joanna Dunkley, Grace E. Chesmore, Frank J. Qu, Omar Darwish, Johannes Hubmayr, Simone Aiola, Gene C. Hilton, Lyman A. Page, Toshiya Namikawa, Rolando Dünner, Maya Mallaby-Kay, C. Sifon, Mark J. Devlin, Patricio A. Gallardo, Daniel T. Becker, Amanda MacInnis, Alexander van Engelen, Renée Hložek, John P. Nibarger, Sara M. Simon, Emilie R. Storer, Matthew Hasselfield, Blake D. Sherwin, Kevin M. Huffenberger, Yilun Guan, Laura Newburgh, Vera Gluscevic, Arthur Kosowsky, Jeff Van Lanen, Edward J. Wollack, Anna E. Fox, Brian J. Koopman, Erminia Calabrese, Jeff McMahon, James A. Beall, Steve K. Choi, Alessandro Schillaci, Naomi Robertson, Nicholas Battaglia, Marius Lungu, John P. Hughes, Suzanne T. Staggs, David N. Spergel, Federico Nati, Dongwon Han, Namikawa, T, Guan, Y, Darwish, O, Sherwin, B, Aiola, S, Battaglia, N, Beall, J, Becker, D, Bond, J, Calabrese, E, Chesmore, G, Choi, S, Devlin, M, Dunkley, J, Dunner, R, Fox, A, Gallardo, P, Gluscevic, V, Han, D, Hasselfield, M, Hilton, G, Hincks, A, Hlozek, R, Hubmayr, J, Huffenberger, K, Hughes, J, Koopman, B, Kosowsky, A, Louis, T, Lungu, M, Macinnis, A, Madhavacheril, M, Mallaby-Kay, M, Maurin, L, Mcmahon, J, Moodley, K, Naess, S, Nati, F, Newburgh, L, Nibarger, J, Niemack, M, Page, L, Qu, F, Robertson, N, Schillaci, A, Sehgal, N, Sifon, C, Simon, S, Spergel, D, Staggs, S, Storer, E, Van Engelen, A, Van Lanen, J, Wollack, E, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut d'astrophysique spatiale (IAS), and Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)
Subjects: data analysis method, cosmological model, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Cosmic microwave background, cosmic background radiation: polarization, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, power spectrum, 01 natural sciences, 7. Clean energy, Cosmology, High Energy Physics - Experiment, current: constraint, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), statistical analysis, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Cosmic Birefringence, CMB, Cosmology, inflation, 010303 astronomy & astrophysics, Axion, Physics, Birefringence, birefringence, 010308 nuclear & particles physics, Chern-Simons term, photon, coupling constant, Polarization (waves), Massless particle, High Energy Physics - Phenomenology, Amplitude, axion, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], Atacama Cosmology Telescope, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - Cosmology and Nongalactic Astrophysics, cosmic background radiation: anisotropy
Abstract: We present new constraints on anisotropic birefringence of the cosmic microwave background polarization using two seasons of data from the Atacama Cosmology Telescope covering $456$ square degrees of sky. The birefringence power spectrum, measured using a curved-sky quadratic estimator, is consistent with zero. Our results provide the tightest current constraint on birefringence over a range of angular scales between $5$ arcminutes and $9$ degrees. We improve previous upper limits on the amplitude of a scale-invariant birefringence power spectrum by a factor of between $2$ and $3$. Assuming a nearly-massless axion field during inflation, our result is equivalent to a $2\,\sigma$ upper limit on the Chern-Simons coupling constant between axions and photons of $g_{\alpha\gamma}, Comment: 18 pages, 3 figures, Accepted for publication in PRD
Published: 2020
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15. The Atacama Cosmology Telescope: Modeling the Gas Thermodynamics in BOSS CMASS galaxies from Kinematic and Thermal Sunyaev-Zel'dovich Measurements

Author: Bruce Partridge, Zhilei Xu, Suzanne T. Staggs, Rolando Dünner, Emmanuel Schaan, Johannes Hubmayr, Federico Nati, Simone Ferraro, Michael D. Niemack, E. V. Denison, Victoria Calafut, Mark J. Devlin, Patricio A. Gallardo, Erminia Calabrese, Tony Mroczkowski, Jo Dunkley, Laura Newburgh, John P. Hughes, Emilie R. Storer, Eve M. Vavagiakis, Leila R. Vale, David N. Spergel, Edward J. Wollack, Joel N. Ullom, Dongwon Han, Shannon M. Duff, Jeff Van Lanen, Simone Aiola, Daniel T. Becker, Brian J. Koopman, James A. Beall, C. Sifon, Alessandro Schillaci, Jason E. Austermann, Lyman A. Page, Jeff McMahon, Sigurd Naess, Nicholas Battaglia, Matt Hilton, S. Amodeo, Renée Hložek, Gene C. Hilton, Alexander van Engelen, Steve K. Choi, J. Colin Hill, Richard J. Bond, Emily Moser, Mathew S. Madhavacheril, Neelima Sehgal, Kirsten Hall, Rachel Bean, Kevin M. Huffenberger, Amanda MacInnis, Adriaan J. Duivenvoorden, Kavilan Moodley, Amodeo, S, Battaglia, N, Schaan, E, Ferraro, S, Moser, E, Aiola, S, Austermann, J, Beall, J, Bean, R, Becker, D, Bond, R, Calabrese, E, Calafut, V, Choi, S, Denison, E, Devlin, M, Duff, S, Duivenvoorden, A, Dunkley, J, Dunner, R, Gallardo, P, Hall, K, Han, D, Hill, J, Hilton, G, Hilton, M, Hlozek, R, Hubmayr, J, Huffenberger, K, Hughes, J, Koopman, B, Macinnis, A, Mcmahon, J, Madhavacheril, M, Moodley, K, Mroczkowski, T, Naess, S, Nati, F, Newburgh, L, Niemack, M, Page, L, Partridge, B, Schillaci, A, Sehgal, N, Sifon, C, Spergel, D, Staggs, S, Storer, E, Ullom, J, Vale, L, Van Engelen, A, Van Lanen, J, Vavagiakis, E, Wollack, E, and Xu, Z
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO), Stellar mass, astro-ph.GA, Thermodynamics, FOS: Physical sciences, Bioengineering, Astrophysics::Cosmology and Extragalactic Astrophysics, CMB, Atomic, 01 natural sciences, Virial theorem, Particle and Plasma Physics, Intracluster medium, 0103 physical sciences, Nuclear, 010306 general physics, Astrophysics::Galaxy Astrophysics, Physics, Quantum Physics, 010308 nuclear & particles physics, Molecular, Radius, Nuclear & Particles Physics, Astrophysics - Astrophysics of Galaxies, Galaxy, Baryon, Amplitude, Astrophysics of Galaxies (astro-ph.GA), Atacama Cosmology Telescope, astro-ph.CO, Astronomical and Space Sciences, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: The thermal and kinematic Sunyaev-Zel'dovich effects (tSZ, kSZ) probe the thermodynamic properties of the circumgalactic and intracluster medium (CGM and ICM) of galaxies, groups, and clusters, since they are proportional, respectively, to the integrated electron pressure and momentum along the line-of-sight. We present constraints on the gas thermodynamics of CMASS galaxies in the Baryon Oscillation Spectroscopic Survey (BOSS) using new measurements of the kSZ and tSZ signals obtained in a companion paper. Combining kSZ and tSZ measurements, we measure within our model the amplitude of energy injection $\epsilon M_\star c^2$, where $M_\star$ is the stellar mass, to be $\epsilon=(40\pm9)\times10^{-6}$, and the amplitude of the non-thermal pressure profile to be $\alpha_{\rm Nth}, Comment: Corrected error in the algorithm that calculates the kSZ temperature profile for a given GNFW density model. The value of $\log_{\rm10} \rho_0$ changed by 0.75$\sigma$ in Tab.II and Fig.2, and affected the results in the left panels of Fig. 6. Conclusions are unchanged. Erratum published at https://link.aps.org/doi/10.1103/PhysRevD.107.049903
Published: 2020
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16. Constraining Cosmic Microwave Background Temperature Evolution With Sunyaev–Zel’Dovich Galaxy Clusters from the Atacama Cosmology Telescope

Author: Matt Hilton, Sigurd Naess, Yilun Guan, Adam D. Hincks, Kavilan Moodley, Michael D. Niemack, Lyman A. Page, Tobias A. Marriage, Neelima Sehgal, Steve K. Choi, Elia S. Battistelli, Emmanuel Schaan, Mark Halpern, Simone Ferraro, Vera Gluscevic, Alexander van Engelen, Mark J. Devlin, Jo Dunkley, Alessandro Schillaci, Yunyang Li, S. Amodeo, Renée Hlozek, J. Richard Bond, Federico Nati, Zhilei Xu, Suzanne T. Staggs, Edward J. Wollack, Jeff McMahon, John Orlowski-Scherer, C. Sifon, Erminia Calabrese, Maria Salatino, Bruce Partridge, Li, Y, Hincks, A, Amodeo, S, Battistelli, E, Bond, J, Calabrese, E, Choi, S, Devlin, M, Dunkley, J, Ferraro, S, Gluscevic, V, Guan, Y, Halpern, M, Hilton, M, Hlozek, R, Marriage, T, Mcmahon, J, Moodley, K, Naess, S, Nati, F, Niemack, M, Orlowski-Scherer, J, Page, L, Partridge, B, Salatino, M, Schaan, E, Schillaci, A, Sehgal, N, Sifon, C, Staggs, S, Van Engelen, A, Wollack, E, and Xu, Z
Subjects: Physics, 010308 nuclear & particles physics, Cosmic microwave background, Astrophysics::Instrumentation and Methods for Astrophysics, Cosmology, SZ Effect, Molecular, Astronomy, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astronomy & Astrophysics, Atomic, 01 natural sciences, Particle and Plasma Physics, Space and Planetary Science, 0103 physical sciences, Atacama Cosmology Telescope, High Energy Physics::Experiment, Nuclear, Astrophysics::Earth and Planetary Astrophysics, 010303 astronomy & astrophysics, Astronomical and Space Sciences, Galaxy cluster, Physical Chemistry (incl. Structural), Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: The Sunyaev–Zel’dovich (SZ) effect introduces a specific distortion of the blackbody spectrum of the cosmic microwave background (CMB) radiation when it scatters off hot gas in clusters of galaxies. The frequency dependence of the distortion is only independent of the cluster redshift when the evolution of the CMB radiation is adiabatic. Using 370 clusters within the redshift range 0.07 ≲ z ≲ 1.4 from the largest SZ-selected cluster sample to date from the Atacama Cosmology Telescope, we provide new constraints on the deviation of CMB temperature evolution from the standard model α = 0.017 − 0.032 + 0.029 , where T ( z ) = T 0 1 + z 1 − α . This result is consistent with no deviation from the standard adiabatic model. Combining it with previous, independent data sets we obtain a joint constraint of α = −0.001 ± 0.012. Attributing deviation from adiabaticity to the decay of dark energy, this result constrains its effective equation of state w eff = − 0.998 − 0.010 + 0.008 .
Published: 2021
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17. Measurement of the splashback feature around SZ-selected Galaxy clusters with DES, SPT, and ACT

Author: Ofer Lahav, J. Carretero, David Brooks, M. Smith, R. C. Smith, B. Flaugher, Risa H. Wechsler, J. Gschwend, Daniel Gruen, Marcelle Soares-Santos, A. E. Evrard, T. N. Varga, Marcos Lima, Lindsey Bleem, J. P. Dietrich, L. N. da Costa, T. M. Crawford, Laura Newburgh, Jeff McMahon, D. W. Gerdes, David J. James, M. E.C. Swanson, Edward J. Wollack, K. Honscheid, V. Scarpine, L. A. Page, J. C. Hill, Z. Zhang, Antony A. Stark, Pablo Fosalba, Michael D. Niemack, K. Bechtol, Eli S. Rykoff, Federico Nati, Chihway Chang, A. K. Romer, Sebastian Bocquet, Carlos E. Cunha, G. Gutierrez, Eric J. Baxter, Simone Aiola, M. A. G. Maia, George Stein, Suzanne T. Staggs, Jennifer L. Marshall, C. J. Miller, Nick Battaglia, Ramon Miquel, P. Doel, John E. Carlstrom, R. H. Schindler, Mathew S. Madhavacheril, Tim Eifler, Mark J. Devlin, Patricio A. Gallardo, Shantanu Desai, F. J. Castander, S. Patil, Zhilei Xu, Felipe Menanteau, Andrey V. Kravtsov, A. G. Kim, Steve K. Choi, Sigurd Naess, Loïc Maurin, Megan Gralla, Ricardo L. C. Ogando, Thomas McClintock, Gregory Tarle, Nikhel Gupta, A. Carnero Rosell, Ben Hoyle, E. J. Sanchez, S. P. Ho, Kevin M. Huffenberger, Flavia Sobreira, Elisabeth Krause, B. Partridge, S. Adhikari, Tesla E. Jeltema, Christian L. Reichardt, Juan Garcia-Bellido, E. Bertin, Bradford Benson, J. DeRose, E. Suchyta, Eduardo Rozo, Matt Hilton, D. L. Hollowood, S. Serrano, D. L. Burke, A. van Engelen, J. De Vicente, Kyler Kuehn, S. Allam, Robert A. Gruendl, Daniel Thomas, E. Buckley-Geer, Jo Dunkley, Joseph J. Mohr, John P. Hughes, A. A. Plazas, W. G. Hartley, T. Shin, Bhuvnesh Jain, J. R. Bond, M. Carrasco Kind, David Rapetti, Enrique Gaztanaga, Hao-Yi Wu, Mark Brodwin, Shin, T, Adhikari, S, Baxter, E, Chang, C, Jain, B, Battaglia, N, Bleem, L, Bocquet, S, Derose, J, Gruen, D, Hilton, M, Kravtsov, A, Mcclintock, T, Rozo, E, Rykoff, E, Varga, T, Wechsler, R, Wu, H, Zhang, Z, Aiola, S, Allam, S, Bechtol, K, Benson, B, Bertin, E, Bond, J, Brodwin, M, Brooks, D, Buckley-Geer, E, Burke, D, Carlstrom, J, Rosell, A, Kind, M, Carretero, J, Castander, F, Choi, S, Cunha, C, Crawford, T, Da Costa, L, De Vicente, J, Desai, S, Devlin, M, Dietrich, J, Doel, P, Dunkley, J, Eifler, T, Evrard, A, Flaugher, B, Fosalba, P, Gallardo, P, Garcia-Bellido, J, Gaztanaga, E, Gerdes, D, Gralla, M, Gruendl, R, Gschwend, J, Gupta, N, Gutierrez, G, Hartley, W, Hill, J, Ho, S, Hollowood, D, Honscheid, K, Hoyle, B, Huffenberger, K, Hughes, J, James, D, Jeltema, T, Kim, A, Krause, E, Kuehn, K, Lahav, O, Lima, M, Madhavacheril, M, Maia, M, Marshall, J, Maurin, L, Mcmahon, J, Menanteau, F, Miller, C, Miquel, R, Mohr, J, Naess, S, Nati, F, Newburgh, L, Niemack, M, Ogando, R, Page, L, Partridge, B, Patil, S, Plazas, A, Rapetti, D, Reichardt, C, Romer, A, Sanchez, E, Scarpine, V, Schindler, R, Serrano, S, Smith, M, Smith, R, Soares-Santos, M, Sobreira, F, Staggs, S, Stark, A, Stein, G, Suchyta, E, Swanson, M, Tarle, G, Thomas, D, Van Engelen, A, Wollack, E, Xu, Z, Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), DES, ACT, and SPT
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO), FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, clusters: general [Galaxies], 01 natural sciences, Cosmology: observation, Cosmology, 0103 physical sciences, Cluster (physics), observations [Cosmology], 010303 astronomy & astrophysics, Galaxy cluster, Astrophysics::Galaxy Astrophysics, STFC, QB, Physics, 010308 nuclear & particles physics, RCUK, Galaxies: evolution, Astronomy and Astrophysics, evolution [Galaxies], Astrophysics - Astrophysics of Galaxies, Galaxy, Redshift, South Pole Telescope, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), cosmology: observations, Atacama Cosmology Telescope, Halo, Galaxies: clusters: general, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We present a detection of the splashback feature around galaxy clusters selected using their Sunyaev-Zel'dovich (SZ) signal. Recent measurements of the splashback feature around optically selected galaxy clusters have found that the splashback radius, $r_{\rm sp}$, is smaller than predicted by N-body simulations. A possible explanation for this discrepancy is that $r_{\rm sp}$ inferred from the observed radial distribution of galaxies is affected by selection effects related to the optical cluster-finding algorithms. We test this possibility by measuring the splashback feature in clusters selected via the SZ effect in data from the South Pole Telescope SZ survey and the Atacama Cosmology Telescope Polarimeter survey. The measurement is accomplished by correlating these clusters with galaxies detected in the Dark Energy Survey Year 3 data. The SZ observable used to select clusters in this analysis is expected to have a tighter correlation with halo mass and to be more immune to projection effects and aperture-induced biases than optically selected clusters. We find that the measured $r_{\rm sp}$ for SZ-selected clusters is consistent with the expectations from simulations, although the small number of SZ-selected clusters makes a precise comparison difficult. In agreement with previous work, when using optically selected redMaPPer clusters, $r_{\rm sp}$ is $\sim$ $2\sigma$ smaller than in the simulations. These results motivate detailed investigations of selection biases in optically selected cluster catalogs and exploration of the splashback feature around larger samples of SZ-selected clusters. Additionally, we investigate trends in the galaxy profile and splashback feature as a function of galaxy color, finding that blue galaxies have profiles close to a power law with no discernible splashback feature, which is consistent with them being on their first infall into the cluster., Comment: 17 pages, 13 figures, published in MNRAS
Published: 2019
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18. The Atacama Cosmology Telescope: Two-season ACTPol Extragalactic Point Sources and their Polarization properties

Author: Suzanne T. Staggs, Federico Nati, Kevin M. Huffenberger, Arthur Kosowsky, Rahul Datta, Kavilan Moodley, Eric R. Switzer, Jeff McMahon, Rolando Dünner, Heather Prince, Tobias A. Marriage, Gerrit S. Farren, Michael D. Niemack, Loïc Maurin, S. P. Ho, Megan Gralla, Thibaut Louis, Simone Aiola, Johannes Hubmayr, Matt Hilton, Steve K. Choi, Marius Lungu, Bruce Partridge, Mark Halpern, Lyman A. Page, Sigurd Naess, Adam D. Hincks, Matthew Hasselfield, Mark J. Devlin, Patricio A. Gallardo, Joanna Dunkley, Edward J. Wollack, John P. Hughes, Carlos H. López-Caraballo, Datta, R, Aiola, S, Choi, S, Devlin, M, Dunkley, J, Dunner, R, Gallardo, P, Gralla, M, Halpern, M, Hasselfield, M, Hilton, M, Hincks, A, Ho, S, Hubmayr, J, Huffenberger, K, Hughes, J, Kosowsky, A, Lopez-Caraballo, C, Louis, T, Lungu, M, Marriage, T, Maurin, L, Mcmahon, J, Moodley, K, Naess, S, Nati, F, Niemack, M, Page, L, Partridge, B, Prince, H, Staggs, S, Switzer, E, Wollack, E, Farren, G, Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)
Subjects: Physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), 010308 nuclear & particles physics, Techniques: polarimetric, Astronomy, FOS: Physical sciences, Astronomy and Astrophysics, Galaxies: active, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Catalogue, Cosmology: observation, Square kilometre array, surveys, 13. Climate action, Space and Planetary Science, cosmology: observations, Polarization, 0103 physical sciences, Atacama Cosmology Telescope, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Survey, 010303 astronomy & astrophysics, catalogues, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We report on measurements of the polarization of extragalactic sources at 148 GHz made during the first two seasons of the Atacama Cosmology Telescope Polarization (ACTPol) survey. The survey covered 680 deg2 of the sky on the celestial equator. Polarization measurements of 169 intensity-selected sources brighter than 30 mJy, that are predominantly active galactic nuclei, are presented. Above a total flux of 215 mJy where the noise bias removal in the polarization measurement is reliable, we detect 26 sources, 14 of which have a detection of linear polarization at greater than 3σ significance. The distribution of the fractional polarization as a function of total source intensity is analysed. Our result is consistent with the scenario that the fractional polarization of our measured radio source population is independent of total intensity down to the limits of our measurements and well described by a Gaussian distribution with a mean fractional polarization pm = 0.028 ± 0.005 and standard deviation $\sigma _{\mathrm{p_{m}}}$ = 0.054, truncated at p = 0. Extrapolating this model for the distribution of source polarization below the ACTPol detection threshold, we predict that one could get a clean measure of the E-mode polarization power spectrum of the microwave background out to $\ell \approx 6000$ with 1 $\mu$K-arcminute maps over ${10\!{\ \rm \%}}$ of the sky from a future survey. We also study the spectral energy distribution of the total and polarized source flux densities by cross-matching with low radio frequency catalogues. We do not find any correlation between the spectral indices for total flux and polarized flux.
Published: 2018
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19. The Atacama Cosmology Telescope: The Two-season ACTPol Sunyaev-Zel'dovich Effect Selected Cluster Catalog

Author: Kavilan Moodley, David N. Spergel, Rolando Dünner, Simone Aiola, Kevin M. Huffenberger, Federico Nati, Mathew S. Madhavacheril, Laura Newburgh, Eve M. Vavagiakis, Sigurd Naess, Adam D. Hincks, Thibaut Louis, Loïc Maurin, Tobias A. Marriage, Matthew Hasselfield, Suzanne T. Staggs, Benjamin L. Schmitt, Bruce Partridge, S. P. Ho, Megan Gralla, Brian J. Koopman, Edward J. Wollack, Nicholas Battaglia, Jeff McMahon, J. Richard Bond, Joanna Dunkley, V. Bharadwaj, Lyman A. Page, Masamune Oguri, Michael D. Niemack, Rahul Datta, Devin Crichton, Steve K. Choi, Matt Hilton, Alexander van Engelen, John P. Hughes, Arthur Kosowsky, Hironao Miyatake, Johannes Hubmayr, Hy Trac, Mark J. Devlin, Patricio A. Gallardo, Cristóbal Sifón, Jon Sievers, Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), ACT, Institut d'Astrophysique de Paris ( IAP ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut national des sciences de l'Univers ( INSU - CNRS ) -Centre National de la Recherche Scientifique ( CNRS ), Hilton, M, Hasselfield, M, Sifón, C, Battaglia, N, Aiola, S, Bharadwaj, V, Bond, J, Choi, S, Crichton, D, Datta, R, Devlin, M, Dunkley, J, Dünner, R, Gallardo, P, Gralla, M, Hincks, A, Ho, S, Hubmayr, J, Huffenberger, K, Hughes, J, Koopman, B, Kosowsky, A, Louis, T, Madhavacheril, M, Marriage, T, Maurin, L, Mcmahon, J, Miyatake, H, Moodley, K, Næss, S, Nati, F, Newburgh, L, Niemack, M, Oguri, M, Page, L, Partridge, B, Schmitt, B, Sievers, J, Spergel, D, Staggs, S, Trac, H, Engelen, A, Vavagiakis, E, and Wollack, E
Subjects: Physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), 010308 nuclear & particles physics, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], Cosmic Microwave Background, Atacama Cosmology Telescope, Sunyaev–Zel’dovich Effect, Cluster Catalog, cosmology: large-scale structure of universe, FOS: Physical sciences, Library science, Astronomy and Astrophysics, 01 natural sciences, Square kilometre array, Space and Planetary Science, galaxies: clusters: general, cosmology: observations, 0103 physical sciences, Atacama Cosmology Telescope, Christian ministry, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], 010303 astronomy & astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We present a catalog of 182 galaxy clusters detected through the Sunyaev-Zel'dovich effect by the Atacama Cosmology Telescope in a contiguous 987.5 deg$^{2}$ field. The clusters were detected as SZ decrements by applying a matched filter to 148 GHz maps that combine the original ACT equatorial survey with data from the first two observing seasons using the ACTPol receiver. Optical/IR confirmation and redshift measurements come from a combination of large public surveys and our own follow-up observations. Where necessary, we measured photometric redshifts for clusters using a pipeline that achieves accuracy $��z/(1 + z)=0.015$ when tested on SDSS data. Under the assumption that clusters can be described by the so-called Universal Pressure Profile and its associated mass-scaling law, the full signal-to-noise > 4 sample spans the mass range $1.6 < M^{\rm UPP}_{\rm 500c}/10^{14}{\rm M}_{\odot} 4 \times 10^{14}$ M$_{\odot}$ is consistent with the number of such clusters found in the South Pole Telescope SZ survey., Accepted for publication in ApJS; 38 pages, 31 figures; a .fits table that combines tables A1-A3 is available from https://acru.ukzn.ac.za/~mjh/ACTPol_E-D56Catalog (and will be posted on LAMBDA soon)
Published: 2018
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20. Detection of the pairwise kinematic sunyaev-zel'dovich effect with boss dr11 and the atacama cosmology telescope

Author: Federico Nati, F. De Bernardis, Suzanne T. Staggs, Kavilan Moodley, Mathew S. Madhavacheril, Simone Aiola, M. Lungu, Kevin Coughlin, Neelima Sehgal, Jeff McMahon, Eve M. Vavagiakis, David N. Spergel, Loïc Maurin, Shawn W. Henderson, Matthew Hasselfield, Hsiao-Mei Sherry Cho, Thibaut Louis, Sara M. Simon, Renée Hlozek, James A. Beall, Jonathan Sievers, A. van Engelen, Lyman A. Page, Joanna Dunkley, Robert Thornton, Rolando Dünner, Kent D. Irwin, Dan Becker, Edward J. Wollack, Dale Li, Benjamin L. Schmitt, Arthur Kosowsky, Brian J. Koopman, Gene C. Hilton, Rahul Datta, Nick Battaglia, J. Van Lanen, Erminia Calabrese, John P. Nibarger, John Bond, Laura Newburgh, Kevin M. Huffenberger, Nick Hand, Matt Hilton, Jason R. Stevens, Michael D. Niemack, Sigurd Naess, B. Partridge, J. C. Hill, John P. Hughes, Adam D. Hincks, Anna E. Fox, Emmanuel Schaan, Johannes Hubmayr, Mark Halpern, Simone Ferraro, Mark J. Devlin, Patricio A. Gallardo, Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut d'Astrophysique de Paris ( IAP ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut national des sciences de l'Univers ( INSU - CNRS ) -Centre National de la Recherche Scientifique ( CNRS ), Bernardis, F, Aiola, S, Vavagiakis, E, Battaglia, N, Niemack, M, Beall, J, Becker, D, Bond, J, Calabrese, E, Cho, H, Coughlin, K, Datta, R, Devlin, M, Dunkley, J, Dunner, R, Ferraro, S, Fox, A, Gallardo, P, Halpern, M, Hand, N, Hasselfield, M, Henderson, S, Hill, J, Hilton, G, Hilton, M, Hincks, A, Hlozek, R, Hubmayr, J, Huffenberger, K, Hughes, J, Irwin, K, Koopman, B, Kosowsky, A, Li, D, Louis, T, Lungu, M, Madhavacheril, M, Maurin, L, Mcmahon, J, Moodley, K, Naess, S, Nati, F, Newburgh, L, Nibarger, J, Page, L, Partridge, B, Schaan, E, Schmitt, B, Sehgal, N, Sievers, J, Simon, S, Spergel, D, Staggs, S, Stevens, J, Thornton, R, Engelen, A, Lanen, J, and Wollack, E
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO), galaxy survey, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], media_common.quotation_subject, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Sunyaev–Zel'dovich effect, Atomic, 01 natural sciences, Luminosity, Particle and Plasma Physics, 0103 physical sciences, CMBR experiments, Nuclear, galaxy surveys, hydrodynamical simulations, 010303 astronomy & astrophysics, Sunyaev-Zeldovich effect, Astrophysics::Galaxy Astrophysics, media_common, Physics, 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, Molecular, Astronomy and Astrophysics, Nuclear & Particles Physics, Galaxy, Baryon, Amplitude, hydrodynamical simulation, Sky, Atacama Cosmology Telescope, astro-ph.CO, Halo, CMBR experiment, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astronomical and Space Sciences, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We present a new measurement of the kinematic Sunyaev-Zeldovich effect using data from the Atacama Cosmology Telescope (ACT) and the Baryon Oscillation Spectroscopic Survey (BOSS). Using 600 square degrees of overlapping sky area, we evaluate the mean pairwise baryon momentum associated with the positions of 50,000 bright galaxies in the BOSS DR11 Large Scale Structure catalog. A non-zero signal arises from the large-scale motions of halos containing the sample galaxies. The data fits an analytical signal model well, with the optical depth to microwave photon scattering as a free parameter determining the overall signal amplitude. We estimate the covariance matrix of the mean pairwise momentum as a function of galaxy separation, using microwave sky simulations, jackknife evaluation, and bootstrap estimates. The most conservative simulation-based errors give signal-to-noise estimates between 3.6 and 4.1 for varying galaxy luminosity cuts. We discuss how the other error determinations can lead to higher signal-to-noise values, and consider the impact of several possible systematic errors. Estimates of the optical depth from the average thermal Sunyaev-Zeldovich signal at the sample galaxy positions are broadly consistent with those obtained from the mean pairwise momentum signal., 15 pages, 8 figures, 2 tables
Published: 2017
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21. Non-Gaussianity of secondary anisotropies from ACTPol and Planck

Author: Suzanne T. Staggs, Nicholas Battaglia, William R. Coulton, Patricio A. Gallardo, David N. Spergel, Federico Nati, Lyman A. Page, Mathew S. Madhavacheril, Bruce Partridge, Michael D. Niemack, Arthur Kosowsky, Mark J. Devlin, J. Colin Hill, Thibaut Louis, Alexander van Engelen, Sigurd Naess, Adam D. Hincks, Steve K. Choi, Edward J. Wollack, Loïc Maurin, Simone Aiola, John P. Hughes, Johannes Hubmayr, Blake D. Sherwin, Erminia Calabrese, Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Coulton, W, Aiola, S, Battaglia, N, Calabrese, E, Choi, S, Devlin, M, Gallardo, P, Hill, J, Hincks, A, Hubmayr, J, Hughes, J, Kosowsky, A, Louis, T, Madhavacheril, M, Loic, M, Naess, S, Nati, F, Niemack, M, Page, L, Partridge, B, Sherwin, B, Spergel, D, Staggs, S, Engelen, A, Wollack, E, and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), 010308 nuclear & particles physics, Radio galaxy, Cosmic microwave background, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Cosmology, symbols.namesake, Gravitational lens, Non-Gaussianity, 0103 physical sciences, Atacama Cosmology Telescope, symbols, non-gaussianity, Planck, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], 010303 astronomy & astrophysics, Bispectrum, Sunyaev-Zeldovich effect, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: Most secondary sources of cosmic microwave background anisotropy (radio sources, dusty galaxies -DSFGs-, thermal Sunyaev Zel'dovich -tSZ- distortions from hot gas, and gravitational lensing) are highly non-Gaussian. Statistics beyond the power spectrum are therefore potentially important sources of information about the physics of these processes. We combine data from the Atacama Cosmology Telescope and with data from the Planck satellite (only using Planck data in the overlapping region) to constrain the amplitudes of a set of theoretical bispectrum templates from the tSZ effect, DSFGs, gravitational lensing, and radio galaxies. We make a strong detection of radio galaxies (>5$\sigma$) and have hints of non-Gaussianity arising from the tSZ effect, DSFGs, from cross-correlations between the tSZ effect and DSFGs and from cross-correlations among the tSZ effect, DSFGs and radio galaxies. These results suggest that the same halos host radio sources, DSFGs, and have tSZ signal. We present a new method to calculate the non-Gaussian contributions to the template covariances. Using this method we find significant non-Gaussian contributions to the variance and covariance of our templates, with templates involving the tSZ effect most effected. Strong degeneracies exist between the various sources at the current noise levels. In light of these degeneracies, combined with theoretical uncertainty in the templates, these results are a demonstration of this technique. With these caveats, we demonstrate the utility of future bispectrum measurements by using the tSZ bispectrum measurement to constrain a combination of the amplitude of matter fluctuations and the matter density to be $\sigma_8 \Omega_m^{0.17}=0.65^{+0.05}_{-0.06}$. Improvements in signal to noise from upcoming observations will enable the separation of bispectrum components and robust constraints on cosmological parameters., Comment: 33 pages, 12 figures, Accepted in JCAP. Abstract is abridged
Published: 2017
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22. The Atacama Cosmology Telescope: Two-Season ACTPol Spectra and Parameters

Author: Brian J. Koopman, Jeff McMahon, Kavilan Moodley, Joanna Dunkley, Felipe Menanteau, David N. Spergel, Simon Muya Kasanda, Jesse Treu, Graeme E. Addison, J. Richard Bond, Shawn W. Henderson, Sara M. Simon, Simone Aiola, John P. Hughes, Matt Hilton, Joseph W. Britton, Alexander van Engelen, Tobias A. Marriage, Jonathan T. Ward, Robert Thornton, Michael R. Nolta, Christine G. Pappas, Rahul Datta, Peter A. R. Ade, Gene C. Hilton, Jeff Klein, Nicholas Battaglia, Mathew S. Madhavacheril, Matthew Hasselfield, Arthur Kosowsky, Benjamin L. Schmitt, Devin Crichton, Charles Munson, Thibaut Louis, Zhiqi Huang, Erminia Calabrese, Kevin Coughlin, Francesco De Bernardis, Neelima Sehgal, Megan Gralla, Kent D. Irwin, Hsiao-Mei Cho, J. Colin Hill, Edward J. Wollack, Michael D. Niemack, Steve K. Choi, Loïc Maurin, Lyman A. Page, Suzanne T. Staggs, S. P. Patty Ho, Federico Nati, Mandana Amiri, Kevin M. Huffenberger, Emmanuel Schaan, Johannes Hubmayr, Eric R. Switzer, Elio Angile, Mark Halpern, Simone Ferraro, James A. Beall, Kevin T. Crowley, Hy Trac, Mark J. Devlin, Patricio A. Gallardo, R. Allison, Simon Dicker, Sigurd Naess, Leopoldo Infante, Laura Newburgh, Dale Li, Adam D. Hincks, Carole Tucker, Bruce Partridge, Anna E. Fox, Jon Sievers, Renée Hlozek, E. Grace, Felipe Rojas, Rolando Dünner, John P. Nibarger, Marius Lungu, Carolina Núñez, Blake D. Sherwin, Institut d'Astrophysique de Paris ( IAP ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut national des sciences de l'Univers ( INSU - CNRS ) -Centre National de la Recherche Scientifique ( CNRS ), ACTPol, Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Louis, T, Grace, E, Hasselfield, M, Lungu, M, Maurin, L, Addison, G, Ade, P, Aiola, S, Allison, R, Amiri, M, Angile, E, Battaglia, N, Beall, J, De Bernardis, F, Bond, J, Britton, J, Calabrese, E, Cho, H, Choi, S, Coughlin, K, Crichton, D, Crowley, K, Datta, R, Devlin, M, Dicker, S, Dunkley, J, Dünner, R, Ferraro, S, Fox, A, Gallardo, P, Gralla, M, Halpern, M, Henderson, S, Hill, J, Hilton, G, Hilton, M, Hincks, A, Hlozek, R, Patty Ho, S, Huang, Z, Hubmayr, J, Huffenberger, K, Hughes, J, Infante, L, Irwin, K, Kasanda, S, Klein, J, Koopman, B, Kosowsky, A, Li, D, Madhavacheril, M, Marriage, T, Mcmahon, J, Menanteau, F, Moodley, K, Munson, C, Naess, S, Nati, F, Newburgh, L, Nibarger, J, Niemack, M, Nolta, M, Nuñez, C, Page, L, Pappas, C, Partridge, B, Rojas, F, Schaan, E, Schmitt, B, Sehgal, N, Sherwin, B, Sievers, J, Simon, S, Spergel, D, Staggs, S, Switzer, E, Thornton, R, Trac, H, Treu, J, Tucker, C, Engelen, A, Ward, J, and Wollack, E
Subjects: cosmological model, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], Astrophysics, 7. Clean energy, 01 natural sciences, Atomic, Particle and Plasma Physics, CMBR experiments, 010303 astronomy & astrophysics, QC, media_common, QB, helium: primordial, Physics, Hubble constant, Celestial equator, Astrophysics::Instrumentation and Methods for Astrophysics, cosmological parameters from CMBR, Planck temperature, CMB cold spot, Nuclear & Particles Physics, Atacama Cosmology Telescope, symbols, astro-ph.CO, power spectrum: angular dependence, Astrophysics::Earth and Planetary Astrophysics, Neutrino, CMBR experiment, Astronomical and Space Sciences, Astrophysics - Cosmology and Nongalactic Astrophysics, CMBR polarisation, Cosmology and Nongalactic Astrophysics (astro-ph.CO), satellite: Planck, media_common.quotation_subject, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, symbols.namesake, 0103 physical sciences, Nuclear, Planck, Astrophysics::Galaxy Astrophysics, beam: polarization, 010308 nuclear & particles physics, baryon: density, Molecular, Astronomy and Astrophysics, 13. Climate action, Sky, WMAP, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Hubble's law
Abstract: We present the temperature and polarization angular power spectra measured by the Atacama Cosmology Telescope Polarimeter (ACTPol). We analyze night-time data collected during 2013-14 using two detector arrays at 149 GHz, from 548 deg$^2$ of sky on the celestial equator. We use these spectra, and the spectra measured with the MBAC camera on ACT from 2008-10, in combination with Planck and WMAP data to estimate cosmological parameters from the temperature, polarization, and temperature-polarization cross-correlations. We find the new ACTPol data to be consistent with the LCDM model. The ACTPol temperature-polarization cross-spectrum now provides stronger constraints on multiple parameters than the ACTPol temperature spectrum, including the baryon density, the acoustic peak angular scale, and the derived Hubble constant. Adding the new data to planck temperature data tightens the limits on damping tail parameters, for example reducing the joint uncertainty on the number of neutrino species and the primordial helium fraction by 20%., 23 pages, 25 figures
Published: 2017
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23. Evidence for the kinematic Sunyaev-Zel’dovich effect with the Atacama Cosmology Telescope and velocity reconstruction from the Baryon Oscillation Spectroscopic Survey

Author: Simone Aiola, Mathew S. Madhavacheril, Benjamin L. Schmitt, Matthew Hasselfield, Neelima Sehgal, J. Colin Hill, Loïc Maurin, Kent D. Irwin, Suzanne T. Staggs, Edward J. Wollack, Kavilan Moodley, M. Lungu, Michael D. Niemack, Bruce Partridge, Laura Newburgh, J. Richard Bond, Brian J. Koopman, Jeff McMahon, Jonathan Sievers, Dale Li, Francesco De Bernardis, Hsiao-Mei Cho, David N. Spergel, Sigurd Naess, Thibaut Louis, Adam D. Hincks, Mariana Vargas-Magaña, Arthur Kosowsky, Shawn W. Henderson, Christine G. Pappas, Erminia Calabrese, Lyman A. Page, John P. Hughes, Emmanuel Schaan, Johannes Hubmayr, Simone Ferraro, Mark J. Devlin, Patricio A. Gallardo, Nicholas Battaglia, Federico Nati, Shirley Ho, Blake D. Sherwin, Joanna Dunkley, Alexander van Engelen, Renée Hlozek, Kendrick M. Smith, Schaan, E, Ferraro, S, Vargas-Magaña, M, Smith Kendrick, M, Ho, S, Aiola, S, Battaglia, N, Bond J., R, De Bernardis, F, Calabrese, E, Cho, H, Devlin Mark, J, Dunkley, J, Gallardo Patricio, A, Hasselfield, M, Henderson, S, Hill J., C, Hincks Adam, D, Hlozek, R, Hubmayr, J, Hughes John, P, Irwin Kent, D, Koopman, B, Kosowsky, A, Li, D, Louis, T, Lungu, M, Madhavacheril, M, Maurin, L, Mcmahon Jeffrey, J, Moodley, K, Naess, S, Nati, F, Newburgh, L, Niemack Michael, D, Page Lyman, A, Pappas Christine, G, Partridge, B, Schmitt Benjamin, L, Sehgal, N, Sherwin Blake, D, Sievers Jonathan, L, Spergel David, N, Staggs Suzanne, T, Van Engelen, A, and Wollack Edward, J
Subjects: Nuclear and High Energy Physics, Active galactic nucleus, Dark matter, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Sunyaev–Zel'dovich effect, 01 natural sciences, Atomic, Galaxy groups and clusters, Particle and Plasma Physics, 0103 physical sciences, Nuclear, 010303 astronomy & astrophysics, QC, Astrophysics::Galaxy Astrophysics, Physics, Quantum Physics, 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Molecular, Nuclear & Particles Physics, Redshift, Galaxy, Baryon, Atacama Cosmology Telescope, astro-ph.CO, Astronomical and Space Sciences
Abstract: Author(s): Schaan, E; Ferraro, S; Vargas-Magana, M; Smith, KM; Ho, S; Aiola, S; Battaglia, N; Bond, JR; De Bernardis, F; Calabrese, E; Cho, HM; Devlin, MJ; Dunkley, J; Gallardo, PA; Hasselfield, M; Henderson, S; Hill, JC; Hincks, AD; Hlozek, R; Hubmayr, J; Hughes, JP; Irwin, KD; Koopman, B; Kosowsky, A; Li, D; Louis, T; Lungu, M; Madhavacheril, M; Maurin, L; McMahon, JJ; Moodley, K; Naess, S; Nati, F; Newburgh, L; Niemack, MD; Page, LA; Pappas, CG; Partridge, B; Schmitt, BL; Sehgal, N; Sherwin, BD; Sievers, JL; Spergel, DN; Staggs, ST; Van Engelen, A; Wollack, EJ | Abstract: We use microwave temperature maps from two seasons of data from the Atacama Cosmology Telescope at 146 GHz, together with the "Constant Mass" CMASS galaxy sample from the Baryon Oscillation Spectroscopic Survey to measure the kinematic Sunyaev-Zel'dovich (kSZ) effect over the redshift range z=0.4-0.7. We use galaxy positions and the continuity equation to obtain a reconstruction of the line-of-sight velocity field. We stack the microwave temperature at the location of each halo, weighted by the corresponding reconstructed velocity. We vary the size of the aperture photometry filter used, thus probing the free electron profile of these halos from within the virial radius out to three virial radii, on the scales relevant for investigating the missing baryons problem. The resulting best fit kSZ model is preferred over the no-kSZ hypothesis at 3.3 and 2.9σ for two independent velocity reconstruction methods, using 25,537 galaxies over 660 square degrees. The data suggest that the baryon profile is shallower than the dark matter in the inner regions of the halos probed here, potentially due to energy injection from active galactic nucleus or supernovae. Thus, by constraining the gas profile on a wide range of scales, this technique will be useful for understanding the role of feedback in galaxy groups and clusters. The effect of foregrounds that are uncorrelated with the galaxy velocities is expected to be well below our signal, and residual thermal Sunyaev-Zel'dovich contamination is controlled by masking the most massive clusters. Finally, we discuss the systematics involved in converting our measurement of the kSZ amplitude into the mean free electron fraction of the halos in our sample.
Published: 2016
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24. Survey strategy optimization for the Atacama Cosmology Telescope

Author: Kevin T. Crowley, Alessandro Schillaci, Shuay-Pwu Patty Ho, David N. Spergel, Shawn W. Henderson, Kevin M. Huffenberger, Jonathan Sievers, Erminia Calabrese, John Bond, Sigurd Naess, Suzanne T. Staggs, Joanna Dunkley, Laura Newburgh, Sara M. Simon, Michael D. Niemack, A. van Engelen, Mark J. Devlin, Patricio A. Gallardo, Steve K. Choi, F. De Bernardis, Federico Nati, Maria Salatino, Matt Hilton, L. A. Page, Jason R. Stevens, David Alonso, Renée Hlozek, Jeff McMahon, Mathew S. Madhavacheril, Thibaut Louis, Neelima Sehgal, Benjamin L. Schmitt, Matthew Hasselfield, Edward J. Wollack, Arthur Kosowsky, Eve M. Vavagiakis, Brian J. Koopman, De Bernardis, F, Stevens, J, Hasselfield, M, Alonso, D, Bond, J, Calabrese, E, Choi, S, Crowley, K, Devlin, M, Dunkley, J, Gallardo, P, Henderson, S, Hilton, M, Hlozek, R, Ho, S, Huffenberger, K, Koopman, B, Kosowsky, A, Louis, T, Madhavacheril, M, Mcmahon, J, Næss, S, Nati, F, Newburgh, L, Niemack, M, Page, L, Salatino, M, Schillaci, A, Schmitt, B, Sehgal, N, Sievers, J, Simon, S, Spergel, D, Staggs, S, Van Engelen, A, Vavagiakis, E, and Wollack, E
Subjects: Daytime, media_common.quotation_subject, Cosmic microwave background, FOS: Physical sciences, Condensed Matter Physic, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Radio spectrum, law.invention, Telescope, law, Observatory, 0103 physical sciences, Electronic, Electrical and Electronic Engineering, 010303 astronomy & astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Astrophysics::Galaxy Astrophysics, media_common, QB, 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Optical and Magnetic Material, Computer Science Applications1707 Computer Vision and Pattern Recognition, Galaxy, Applied Mathematic, Sky, Atacama Cosmology Telescope, Astrophysics - Instrumentation and Methods for Astrophysics, Geology
Abstract: In recent years there have been significant improvements in the sensitivity and the angular resolution of the instruments dedicated to the observation of the Cosmic Microwave Background (CMB). ACTPol is the first polarization receiver for the Atacama Cosmology Telescope (ACT) and is observing the CMB sky with arcmin resolution over about 2000 sq. deg. Its upgrade, Advanced ACTPol (AdvACT), will observe the CMB in five frequency bands and over a larger area of the sky. We describe the optimization and implementation of the ACTPol and AdvACT surveys. The selection of the observed fields is driven mainly by the science goals, that is, small angular scale CMB measurements, B-mode measurements and cross-correlation studies. For the ACTPol survey we have observed patches of the southern galactic sky with low galactic foreground emissions which were also chosen to maximize the overlap with several galaxy surveys to allow unique cross-correlation studies. A wider field in the northern galactic cap ensured significant additional overlap with the BOSS spectroscopic survey. The exact shapes and footprints of the fields were optimized to achieve uniform coverage and to obtain cross-linked maps by observing the fields with different scan directions. We have maximized the efficiency of the survey by implementing a close to 24 hour observing strategy, switching between daytime and nighttime observing plans and minimizing the telescope idle time. We describe the challenges represented by the survey optimization for the significantly wider area observed by AdvACT, which will observe roughly half of the low-foreground sky. The survey strategies described here may prove useful for planning future ground-based CMB surveys, such as the Simons Observatory and CMB Stage IV surveys., Comment: 14 Pages, 9 Figures, 4 Tables
Published: 2016
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25. Atacama Cosmology Telescope: Combined kinematic and thermal Sunyaev-Zel’dovich measurements from BOSS CMASS and LOWZ halos

Author: Schaan, Emmanuel, Ferraro, Simone, Amodeo, Stefania, Battaglia, Nick, Aiola, Simone, Austermann, Jason E., Beall, James A., Bean, Rachel, Becker, Daniel T., Bond, Richard J., Calabrese, Erminia, Calafut, Victoria, Choi, Steve K., Denison, Edward V., Devlin, Mark J., Duff, Shannon M., Duivenvoorden, Adriaan J., Dunkley, Jo, Dünner, Rolando, Gallardo, Patricio A., Guan, Yilun, Han, Dongwon, Hill, J. Colin, Hilton, Gene C., Hilton, Matt, Hložek, Renée, Hubmayr, Johannes, Huffenberger, Kevin M., Hughes, John P., Koopman, Brian J., MacInnis, Amanda, McMahon, Jeff, Madhavacheril, Mathew S., Moodley, Kavilan, Mroczkowski, Tony, Naess, Sigurd, Nati, Federico, Newburgh, Laura B., Niemack, Michael D., Page, Lyman A., Partridge, Bruce, Salatino, Maria, Sehgal, Neelima, Schillaci, Alessandro, Sifón, Cristóbal, Smith, Kendrick M., Spergel, David N., Staggs, Suzanne, Storer, Emilie R., Trac, Hy, Page, A., Ullom, Joel N., Van Lanen, Jeff, R. Vale, Leila, van Engelen, Alexander, Vargas Magaña, Mariana, M. Vavagiakis, Eve, Wollack, Edward J., Xu, Zhilei, Schaan, E, Ferraro, S, Amodeo, S, Battaglia, N, Aiola, S, Austermann, J, Beall, J, Bean, R, Becker, D, Bond, R, Calabrese, E, Calafut, V, Choi, S, Denison, E, Devlin, M, Duff, S, Duivenvoorden, A, Dunkley, J, Dunner, R, Gallardo, P, Guan, Y, Han, D, Hill, J, Hilton, G, Hilton, M, Hlozek, R, Hubmayr, J, Huffenberger, K, Hughes, J, Koopman, B, Macinnis, A, Mcmahon, J, Madhavacheril, M, Moodley, K, Mroczkowski, T, Naess, S, Nati, F, Newburgh, L, Niemack, M, Page, L, Partridge, B, Salatino, M, Sehgal, N, Schillaci, A, Sifon, C, Smith, K, Spergel, D, Staggs, S, Storer, E, Trac, H, Ullom, J, Van Lanen, J, Vale, L, Van Engelen, A, Magana, M, Vavagiakis, E, Wollack, E, and Xu, Z
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO), astro-ph.GA, Cosmic microwave background, FOS: Physical sciences, High resolution, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, CMB, 01 natural sciences, Atomic, symbols.namesake, Particle and Plasma Physics, 0103 physical sciences, Nuclear, Planck, 010306 general physics, Astrophysics::Galaxy Astrophysics, Physics, Quantum Physics, 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, Molecular, Astrophysics - Astrophysics of Galaxies, Nuclear & Particles Physics, Redshift, Galaxy, 13. Climate action, Astrophysics of Galaxies (astro-ph.GA), Atacama Cosmology Telescope, symbols, astro-ph.CO, Halo, Astronomical and Space Sciences, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: The scattering of cosmic microwave background (CMB) photons off the free-electron gas in galaxies and clusters leaves detectable imprints on high resolution CMB maps: the thermal and kinematic Sunyaev-Zel'dovich effects (tSZ and kSZ respectively). We use combined microwave maps from the Atacama Cosmology Telescope (ACT) DR5 and Planck in combination with the CMASS and LOWZ galaxy catalogs from the Baryon Oscillation Spectroscopic Survey (BOSS DR10 and DR12), to study the gas associated with these galaxy groups. Using individual reconstructed velocities, we perform a stacking analysis and reject the no-kSZ hypothesis at 6.5$\sigma$, the highest significance to date. This directly translates into a measurement of the electron number density profile, and thus of the gas density profile. Despite the limited signal to noise, the measurement shows at high significance that the gas density profile is more extended than the dark matter density profile, for any reasonable baryon abundance (formally $>90\sigma$ for the cosmic baryon abundance). We simultaneously measure the tSZ signal, i.e. the electron thermal pressure profile of the same CMASS objects, and reject the no-tSZ hypothesis at 10$\sigma$. We combine tSZ and kSZ measurements to estimate the electron temperature to 20% precision in several aperture bins, and find it comparable to the virial temperature. In a companion paper, we analyze these measurements to constrain the gas thermodynamics and the properties of feedback inside galaxy groups. We present the corresponding LOWZ measurements in this paper, ruling out a null kSZ (tSZ) signal at 2.9 (13.9)$\sigma$, and leave their interpretation to future work. Our stacking software ThumbStack is publicly available at https://github.com/EmmanuelSchaan/ThumbStack and directly applicable to future Simons Observatory and CMB-S4 data., Comment: Accepted in Physical Review D, Editors' Suggestion
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26. The Atacama Cosmology Telescope: Weighing Distant Clusters with the Most Ancient Light

Author: Nicholas Battaglia, Johannes Hubmayr, Laura Newburgh, Kavilan Moodley, Rolando Dünner, Suzanne T. Staggs, Adriaan J. Duivenvoorden, Amanda MacInnis, Sigurd Naess, Shannon M. Duff, Edward V. Denison, J. Colin Hill, Steve K. Choi, David N. Spergel, Dongwon Han, Kevin M. Huffenberger, J. Richard Bond, Frank J. Qu, Eve M. Vavagiakis, Gene C. Hilton, Jason E. Austermann, Emilie Storer, Benjamin L. Schmitt, Federico Nati, Blake D. Sherwin, Mark J. Devlin, Sara M. Simon, Arthur Kosowsky, Brian J. Koopman, Jeff McMahon, Maria Salatino, Toshiya Namikawa, Zhilei Xu, Matt Hilton, Jeff Van Lanen, Alexander van Engelen, Joel N. Ullom, Neelima Sehgal, Stefania Amodeo, Mathew S. Madhavacheril, Cristóbal Sifón, John P. Hughes, Eunseong Lee, Emmanuel Schaan, Simone Ferraro, Bruce Partridge, Simon Dicker, N. C. Robertson, James A. Beall, Patricio A. Gallardo, Yilun Guan, Alessandro Schillaci, Erminia Calabrese, Lyman A. Page, Jo Dunkley, Daniel T. Becker, Leila R. Vale, Thibaut Louis, Edward J. Wollack, Simone Aiola, Michael D. Niemack, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), ACT, Namikawa, Toshiya [0000-0003-3070-9240], Apollo - University of Cambridge Repository, Madhavacheril, M, Sifon, C, Battaglia, N, Aiola, S, Amodeo, S, Austermann, J, Beall, J, Becker, D, Richard Bond, J, Calabrese, E, Choi, S, Denison, E, Devlin, M, Dicker, S, Duff, S, Duivenvoorden, A, Dunkley, J, Dunner, R, Ferraro, S, Gallardo, P, Guan, Y, Han, D, Colin Hill, J, Hilton, G, Hilton, M, Hubmayr, J, Huffenberger, K, Hughes, J, Koopman, B, Kosowsky, A, van Lanen, J, Lee, E, Louis, T, Macinnis, A, Mcmahon, J, Moodley, K, Naess, S, Namikawa, T, Nati, F, Newburgh, L, Niemack, M, Page, L, Partridge, B, Qu, F, Robertson, N, Salatino, M, Schaan, E, Schillaci, A, Schmitt, B, Sehgal, N, Sherwin, B, Simon, S, Spergel, D, Staggs, S, Storer, E, Ullom, J, Vale, L, van Engelen, A, Vavagiakis, E, Wollack, E, and Xu, Z
Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO), 010504 meteorology & atmospheric sciences, astro-ph.GA, Cosmic microwave background, Population, Gravitational lensing, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astronomy & Astrophysics, High-redshift galaxy clusters, 01 natural sciences, Cosmology, Cosmic microwave background radiation, 0103 physical sciences, education, 010303 astronomy & astrophysics, Galaxy cluster, Weak gravitational lensing, Astrophysics::Galaxy Astrophysics, 0105 earth and related environmental sciences, Physics, education.field_of_study, Astronomy and Astrophysics, Astrophysics - Astrophysics of Galaxies, Redshift, gravitational lensing, cosmic microwave background, Gravitational lens, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), Atacama Cosmology Telescope, astro-ph.CO, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astronomical and Space Sciences, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We use gravitational lensing of the cosmic microwave background (CMB) to measure the mass of the most distant blindly-selected sample of galaxy clusters on which a lensing measurement has been performed to date. In CMB data from the the Atacama Cosmology Telescope (ACT) and the Planck satellite, we detect the stacked lensing effect from 677 near-infrared-selected galaxy clusters from the Massive and Distant Clusters of WISE Survey (MaDCoWS), which have a mean redshift of $ \langle z \rangle = 1.08$. There are no current optical weak lensing measurements of clusters that match the distance and average mass of this sample. We detect the lensing signal with a significance of $4.2 \sigma$. We model the signal with a halo model framework to find the mean mass of the population from which these clusters are drawn. Assuming that the clusters follow Navarro-Frenk-White density profiles, we infer a mean mass of $\langle M_{500c}\rangle = \left(1.7 \pm 0.4 \right)\times10^{14}\,\mathrm{M}_\odot$. We consider systematic uncertainties from cluster redshift errors, centering errors, and the shape of the NFW profile. These are all smaller than 30% of our reported uncertainty. This work highlights the potential of CMB lensing to enable cosmological constraints from the abundance of distant clusters populating ever larger volumes of the observable Universe, beyond the capabilities of optical weak lensing measurements., Comment: 14 pages, 3 figures, matches version accepted in ApJL, code available at https://github.com/ACTCollaboration/madcows_lensing/
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27. The Atacama Cosmology Telescope: arcminute-resolution maps of 18 000 square degrees of the microwave sky from ACT 2008–2018 data combined with Planck

Author: Emmanuel Schaan, Johannes Hubmayr, Mark Halpern, Mark J. Devlin, Patricio A. Gallardo, Thibaut Louis, Rolando Dünner, Erminia Calabrese, Bruce Partridge, Rahul Datta, Lyman A. Page, Leila R. Vale, Jamie Stevens, Nick Battaglia, Jason E. Austermann, Kavilan Moodley, Joel N. Ullom, John P. Nibarger, Zhilei Xu, Shannon M. Duff, Edward V. Denison, Renée Hložek, Adriaan J. Duivenvoorden, Jo Dunkley, Michael D. Niemack, John P. Hughes, Daniel T. Becker, Emilie Storer, Benjamin L. Schmitt, Nicholas F. Cothard, Dongwon Han, Blake D. Sherwin, Steve K. Choi, Cristóbal Sifón, Omar Darwish, Maria Salatino, J. Colin Hill, Sigurd Naess, Jeff McMahon, Richard J. Bond, Adam D. Hincks, Federico Nati, Matt Hilton, Jeff Van Lanen, Arthur Kosowsky, Alexander van Engelen, Suzanne T. Staggs, Gene C. Hilton, Cody J. Duell, Eve M. Vavagiakis, David N. Spergel, James A. Beall, Kevin T. Crowley, Alessandro Schillaci, Shuay-Pwu Patty Ho, Kevin M. Huffenberger, Anna E. Fox, Simone Aiola, Matthew Hasselfield, Edward J. Wollack, Mathew S. Madhavacheril, Neelima Sehgal, Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Naess, S, Aiola, S, Austermann, J, Battaglia, N, Beall, J, Becker, D, Bond, R, Calabrese, E, Choi, S, Cothard, N, Crowley, K, Darwish, O, Datta, R, Denison, E, Devlin, M, Duell, C, Duff, S, Duivenvoorden, A, Dunkley, J, Dunner, R, Fox, A, Gallardo, P, Halpern, M, Han, D, Hasselfield, M, Colin Hill, J, Hilton, G, Hilton, M, Hincks, A, Hlozek, R, Ho, S, Hubmayr, J, Huffenberger, K, Hughes, J, Kosowsky, A, Louis, T, Madhavacheril, M, Mcmahon, J, Moodley, K, Nati, F, Nibarger, J, Niemack, M, Page, L, Partridge, B, Salatino, M, Schaan, E, Schillaci, A, Schmitt, B, Sherwin, B, Sehgal, N, Sifon, C, Spergel, D, Staggs, S, Stevens, J, Storer, E, Ullom, J, Vale, L, van Engelen, A, van Lanen, J, Vavagiakis, E, Wollack, E, and Xu, Z
Subjects: CMBR polarisation, Point source, Milky Way, media_common.quotation_subject, Cosmic microwave background, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Atomic, symbols.namesake, Particle and Plasma Physics, 0103 physical sciences, CMBR experiments, Nuclear, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Planck, Astrophysics::Galaxy Astrophysics, media_common, Physics, 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Molecular, Astronomy and Astrophysics, Nuclear & Particles Physics, Galaxy, Stars, Sky, Atacama Cosmology Telescope, symbols, astro-ph.CO, CMBR experiment, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astronomical and Space Sciences, astro-ph.IM
Abstract: International audience; This paper presents a maximum-likelihood algorithm for combining sky maps with disparate sky coverage, angular resolution and spatially varying anisotropic noise into a single map of the sky. We use this to merge hundreds of individual maps covering the 2008–2018 ACT observing seasons, resulting in by far the deepest ACT maps released so far. We also combine the maps with the full Planck maps, resulting in maps that have the best features of both Planck and ACT: Planck's nearly white noise on intermediate and large angular scales and ACT's high-resolution and sensitivity on small angular scales. The maps cover over 18 000 square degrees, nearly half the full sky, at 100, 150 and 220 GHz. They reveal 4 000 optically-confirmed clusters through the Sunyaev Zel'dovich effect (SZ) and 18 500 point source candidates at > 5σ, the largest single collection of SZ clusters and millimeter wave sources to date. The multi-frequency maps provide millimeter images of nearby galaxies and individual Milky Way nebulae, and even clear detections of several nearby stars. Other anticipated uses of these maps include, for example, thermal SZ and kinematic SZ cluster stacking, CMB cluster lensing and galactic dust science. The method itself has negligible bias. However, due to the preliminary nature of some of the component data sets, we caution that these maps should not be used for precision cosmological analysis. The maps are part of ACT DR5, and will be made available on \href{https://lambda.gsfc.nasa.gov/}{LAMBDA} no later than three months after the journal publication of this article, along with an interactive sky atlas.
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28. The Simons Observatory: science goals and forecasts

Author: Ade, Peter, Aguirre, James, Ahmed, Zeeshan, Aiola, Simone, Ali, Aamir, Alonso, David, Alvarez, Marcelo A., Arnold, Kam, Ashton, Peter, Austermann, Jason, Awan, Humna, Baccigalupi, Carlo, Baildon, Taylor, Barron, Darcy, Battaglia, Nick, Battye, Richard, Baxter, Eric, Bazarko, Andrew, Beall, James A., Bean, Rachel, Beck, Dominic, Beckman, Shawn, Beringue, Benjamin, Bianchini, Federico, Boada, Steven, Boettger, David, Richard Bond, J., Borrill, Julian, Brown, Michael L., Bruno, Sarah Marie, Bryan, Sean, Calabrese, Erminia, Calafut, Victoria, Calisse, Paolo, Carron, Julien, Challinor, Anthony, Chesmore, Grace, Chinone, Yuji, Chluba, Jens, Cho, Hsiao-Mei Sherry, Choi, Steve, Coppi, Gabriele, Cothard, Nicholas F., Coughlin, Kevin, Crichton, Devin, Crowley, Kevin D., Crowley, Kevin T., Cukierman, Ari, D`Ewart, Mitch, Dünner, Rolando, de Haan, Tijmen, Devlin, Mark, Dicker, Simon, DIDIER, JOY, Dobbs, Matt, Dober, Bradley, Duell, Cody, Duff, Shannon, Duivenvoorden, Adri, Dunkley, Jo, Dusatko, John, Errard, Josquin, Fabbian, Giulio, Feeney, Stephen, Ferraro, Simone, Fluxà, Pedro, Freese, Katherine, Frisch, Josef, Frolov, Andrei, Fuller, George, Fuzia, Brittany, Galitzki, Nicholas, Gallardo, Patricio A., Galvez Ghersi, Jose Tomas, Gao, Jiansong, Gawiser, Eric, Gerbino, Martina, Gluscevic, Vera, Goeckner-Wald, Neil, Golec, Joseph, Gordon, Sam, Gralla, Megan, Green, Daniel, Grigorian, Arpi, Groh, John, Groppi, Chris, Guan, Yilun, Gudmundsson, Jon E., Han, Dongwon, Hargrave, Peter, Hasegawa, Masaya, Hasselfield, Matthew, Hattori, Makoto, Haynes, Victor, Hazumi, Masashi, He, Yizhou, Healy, Erin, Henderson, Shawn, Hervias-Caimapo, Carlos, Hill, Charles A., Colin Hill, J., HILTON, GENE, Hilton, Matt, Hincks, Adam D., Hinshaw, Gary, Hložek, Renée, Ho, Shirley, Ho, Shuay-Pwu Patty, Howe, Logan, Huang, Zhiqi, Hubmayr, Johannes, Huffenberger, Kevin, Hughes, John P., Ijjas, Anna, Ikape, Margaret, Irwin, Kent, Jaffe, Andrew H., Jain, Bhuvnesh, Jeong, Oliver, Kaneko, Daisuke, Karpel, Ethan, Katayama, Nobuhiko, Keating, Brian, Kernasovski, Sarah, Keskitalo, Reijo, Kisner, Theodore, Kiuchi, Kenji, Klein, Jeff, Knowles, Kenda, Koopman, Brian, Kosowsky, Arthur, Krachmalnicoff, Nicoletta, Kuenstner, Stephen, Kuo, Chao-Lin, Kusaka, Akito, Lashner, Jacob, Lee, Adrian, Lee, Eunseong, Leon, David, Leung, Jason S.-Y., Lewis, Antony, Li, Yaqiong, Li, Zack, Limon, Michele, Linder, Eric, Lopez-Caraballo, Carlos, Louis, Thibaut, Lowry, Lindsay, Lungu, Marius, Madhavacheril, Mathew, Mak, Daisy, Maldonado, Felipe, Mani, Hamdi, Mates, Ben, Matsuda, Frederick, Maurin, Loïc, Mauskopf, Phil, May, Andrew, McCallum, Nialh, McKenney, Chris, McMahon, Jeff, Daniel Meerburg, P., Meyers, Joel, Miller, Amber, Mirmelstein, Mark, Moodley, Kavilan, Munchmeyer, Moritz, Munson, Charles, Naess, Sigurd, Nati, Federico, Navaroli, Martin, Newburgh, Laura, Nguyen, Ho Nam, Niemack, Mike, Nishino, Haruki, Orlowski-Scherer, John, Page, Lyman, Partridge, Bruce, Peloton, Julien, Perrotta, Francesca, Piccirillo, Lucio, Pisano, Giampaolo, Poletti, Davide, Puddu, Roberto, Puglisi, Giuseppe, Raum, Chris, Reichardt, Christian L., Remazeilles, Mathieu, Rephaeli, Yoel, Riechers, Dominik, Rojas, Felipe, Roy, Anirban, Sadeh, Sharon, Sakurai, Yuki, Salatino, Maria, Rao, Mayuri Sathyanarayana, Schaan, Emmanuel, Schmittfull, Marcel, Sehgal, Neelima, Seibert, Joseph, Seljak, Uros, Sherwin, Blake, Shimon, Meir, Sierra, Carlos, Sievers, Jonathan, Sikhosana, Precious, Silva-Feaver, Max, Simon, Sara M., Sinclair, Adrian, Siritanasak, Praween, Smith, Kendrick, Smith, Steve, Spergel, David, Staggs, Suzanne, Stein, George, Stevens, Jason R., Stompor, Radek, Suzuki, Aritoki, Tajima, Osamu, Takakura, Satoru, Teply, Grant, Thomas, Daniel B., Thorne, Ben, Thornton, Robert, Trac, Hy, Tsai, Calvin, Tucker, Carole, Ullom, Joel, Vagnozzi, Sunny, van Engelen, Alexander, Van Lanen, Jeff, van Winkle, Dan, Vavagiakis, Eve M., Vergès, Clara, Vissers, Michael, Wagoner, Kasey, Walker, Samantha, Ward, Jon, WESTBROOK, BEN, Whitehorn, Nathan, Williams, Jason, Williams, Joel, Wollack, Edward J., Xu, Zhilei, Ye, Jiani, Yu, Byeonghee, Yu, Cyndria, Zago, Fernando, Zhang, Hezi, Zhu, Ningfeng, AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Simons Observatory, Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), ANR-17-CE31-0022,BxB,Champs B interstellaires et modes B de l'inflation(2017), Ade, P, Aguirre, J, Ahmed, Z, Aiola, S, Ali, A, Alonso, D, Alvarez, M, Arnold, K, Ashton, P, Austermann, J, Awan, H, Baccigalupi, C, Baildon, T, Barron, D, Battaglia, N, Battye, R, Baxter, E, Bazarko, A, Beall, J, Bean, R, Beck, D, Beckman, S, Beringue, B, Bianchini, F, Boada, S, Boettger, D, Bond, J, Borrill, J, Brown, M, Bruno, S, Bryan, S, Calabrese, E, Calafut, V, Calisse, P, Carron, J, Challinor, A, Chesmore, G, Chinone, Y, Chluba, J, Cho, H, Choi, S, Coppi, G, Cothard, N, Coughlin, K, Crichton, D, Crowley, K, Cukierman, A, D'Ewart, J, Dünner, R, de Haan, T, Devlin, M, Dicker, S, Didier, J, Dobbs, M, Dober, B, Duell, C, Duff, S, Duivenvoorden, A, Dunkley, J, Dusatko, J, Errard, J, Fabbian, G, Feeney, S, Ferraro, S, Fluxà, P, Freese, K, Frisch, J, Frolov, A, Fuller, G, Fuzia, B, Galitzki, N, Gallardo, P, Ghersi, J, Gao, J, Gawiser, E, Gerbino, M, Gluscevic, V, Goeckner-Wald, N, Golec, J, Gordon, S, Gralla, M, Green, D, Grigorian, A, Groh, J, Groppi, C, Guan, Y, Gudmundsson, J, Han, D, Hargrave, P, Hasegawa, M, Hasselfield, M, Hattori, M, Haynes, V, Hazumi, M, He, Y, Healy, E, Henderson, S, Hervias-Caimapo, C, Hill, C, Hill, J, Hilton, G, Hilton, M, Hincks, A, Hinshaw, G, Hložek, R, Ho, S, Howe, L, Huang, Z, Hubmayr, J, Huffenberger, K, Hughes, J, Ijjas, A, Ikape, M, Irwin, K, Jaffe, A, Jain, B, Jeong, O, Kaneko, D, Karpel, E, Katayama, N, Keating, B, Kernasovskiy, S, Keskitalo, R, Kisner, T, Kiuchi, K, Klein, J, Knowles, K, Koopman, B, Kosowsky, A, Krachmalnicoff, N, Kuenstner, S, Kuo, C, Kusaka, A, Lashner, J, Lee, A, Lee, E, Leon, D, Leung, J, Lewis, A, Li, Y, Li, Z, Limon, M, Linder, E, Lopez-Caraballo, C, Louis, T, Lowry, L, Lungu, M, Madhavacheril, M, Mak, D, Maldonado, F, Mani, H, Mates, B, Matsuda, F, Maurin, L, Mauskopf, P, May, A, Mccallum, N, Mckenney, C, Mcmahon, J, Meerburg, P, Meyers, J, Miller, A, Mirmelstein, M, Moodley, K, Munchmeyer, M, Munson, C, Naess, S, Nati, F, Navaroli, M, Newburgh, L, Nguyen, H, Niemack, M, Nishino, H, Orlowski-Scherer, J, Page, L, Partridge, B, Peloton, J, Perrotta, F, Piccirillo, L, Pisano, G, Poletti, D, Puddu, R, Puglisi, G, Raum, C, Reichardt, C, Remazeilles, M, Rephaeli, Y, Riechers, D, Rojas, F, Roy, A, Sadeh, S, Sakurai, Y, Salatino, M, Rao, M, Schaan, E, Schmittfull, M, Sehgal, N, Seibert, J, Seljak, U, Sherwin, B, Shimon, M, Sierra, C, Sievers, J, Sikhosana, P, Silva-Feaver, M, Simon, S, Sinclair, A, Siritanasak, P, Smith, K, Smith, S, Spergel, D, Staggs, S, Stein, G, Stevens, J, Stompor, R, Suzuki, A, Tajima, O, Takakura, S, Teply, G, Thomas, D, Thorne, B, Thornton, R, Trac, H, Tsai, C, Tucker, C, Ullom, J, Vagnozzi, S, Engelen, A, Lanen, J, Winkle, D, Vavagiakis, E, Vergès, C, Vissers, M, Wagoner, K, Walker, S, Ward, J, Westbrook, B, Whitehorn, N, Williams, J, Wollack, E, Xu, Z, Yu, B, Yu, C, Zago, F, Zhang, H, Zhu, N, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), and High-Energy Frontier
Subjects: CMBR polarisation, Cosmology and Nongalactic Astrophysics (astro-ph.CO), media_common.quotation_subject, Cosmic microwave background, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, 7. Clean energy, law.invention, Telescope, symbols.namesake, Settore FIS/05 - Astronomia e Astrofisica, Observatory, law, 0103 physical sciences, CMBR experiments, Cosmological parameters from CMBR, Astronomy and Astrophysics, Planck, Reionization, QC, Astrophysics::Galaxy Astrophysics, media_common, Physics, 010308 nuclear & particles physics, Settore FIS/05, Astrophysics::Instrumentation and Methods for Astrophysics, cosmological parameters from CMBR, Nuclear & Particles Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Gravitational lens, 13. Climate action, Sky, symbols, astro-ph.CO, Neutrino, Cosmology and Nongalactic Astrophysics, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astronomical and Space Sciences, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: The Simons Observatory (SO) is a new cosmic microwave background experiment being built on Cerro Toco in Chile, due to begin observations in the early 2020s. We describe the scientific goals of the experiment, motivate the design, and forecast its performance. SO will measure the temperature and polarization anisotropy of the cosmic microwave background in six frequency bands: 27, 39, 93, 145, 225 and 280 GHz. The initial configuration of SO will have three small-aperture 0.5-m telescopes (SATs) and one large-aperture 6-m telescope (LAT), with a total of 60,000 cryogenic bolometers. Our key science goals are to characterize the primordial perturbations, measure the number of relativistic species and the mass of neutrinos, test for deviations from a cosmological constant, improve our understanding of galaxy evolution, and constrain the duration of reionization. The SATs will target the largest angular scales observable from Chile, mapping ~10% of the sky to a white noise level of 2 $\mu$K-arcmin in combined 93 and 145 GHz bands, to measure the primordial tensor-to-scalar ratio, $r$, at a target level of $\sigma(r)=0.003$. The LAT will map ~40% of the sky at arcminute angular resolution to an expected white noise level of 6 $\mu$K-arcmin in combined 93 and 145 GHz bands, overlapping with the majority of the LSST sky region and partially with DESI. With up to an order of magnitude lower polarization noise than maps from the Planck satellite, the high-resolution sky maps will constrain cosmological parameters derived from the damping tail, gravitational lensing of the microwave background, the primordial bispectrum, and the thermal and kinematic Sunyaev-Zel'dovich effects, and will aid in delensing the large-angle polarization signal to measure the tensor-to-scalar ratio. The survey will also provide a legacy catalog of 16,000 galaxy clusters and more than 20,000 extragalactic sources., Comment: This paper presents an overview of the Simons Observatory science goals, details about the instrument will be presented in a companion paper. The author contribution to this paper is available at https://simonsobservatory.org/publications.php (Abstract abridged) -- matching version published in JCAP
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28 results on '"Naess, S"'

1. Atacama Cosmology Telescope: A Catalog of >4000 Sunyaev–Zel’dovich Galaxy Clusters

2. The Atacama Cosmology Telescope: a search for Planet 9

3. The Atacama Cosmology Telescope: microwave intensity and polarization maps of the Galactic Center

4. The Atacama Cosmology Telescope: Probing the baryon content of SDSS DR15 galaxies with the thermal and kinematic Sunyaev-Zel’dovich effects

5. The Atacama Cosmology Telescope: Delensed power spectra and parameters

6. The Atacama Cosmology Telescope: Detection of the pairwise kinematic Sunyaev-Zel’dovich effect with SDSS DR15 galaxies

7. The Atacama Cosmology Telescope: Summary of DR4 and DR5 Data Products and Data Access

8. The Atacama Cosmology Telescope: Detection of Millimeter-wave Transient Sources

9. MERGHERS pilot: MeerKAT discovery of diffuse emission in nine massive Sunyaev–Zel’dovich-selected galaxy clusters from ACT

10. The Atacama Cosmology Telescope: DR4 maps and cosmological parameters

11. Atacama Cosmology Telescope: component-separated maps of CMB temperature and the thermal Sunyaev-Zel’dovich effect

12. The cross correlation of the ABS and ACT maps

13. The Atacama Cosmology Telescope: A Measurement of the Cosmic Microwave Background Power Spectra at 98 and 150 GHz

14. Atacama Cosmology Telescope: Constraints on cosmic birefringence

15. The Atacama Cosmology Telescope: Modeling the Gas Thermodynamics in BOSS CMASS galaxies from Kinematic and Thermal Sunyaev-Zel'dovich Measurements

16. Constraining Cosmic Microwave Background Temperature Evolution With Sunyaev–Zel’Dovich Galaxy Clusters from the Atacama Cosmology Telescope

17. Measurement of the splashback feature around SZ-selected Galaxy clusters with DES, SPT, and ACT

18. The Atacama Cosmology Telescope: Two-season ACTPol Extragalactic Point Sources and their Polarization properties

19. The Atacama Cosmology Telescope: The Two-season ACTPol Sunyaev-Zel'dovich Effect Selected Cluster Catalog

20. Detection of the pairwise kinematic sunyaev-zel'dovich effect with boss dr11 and the atacama cosmology telescope

21. Non-Gaussianity of secondary anisotropies from ACTPol and Planck

22. The Atacama Cosmology Telescope: Two-Season ACTPol Spectra and Parameters

23. Evidence for the kinematic Sunyaev-Zel’dovich effect with the Atacama Cosmology Telescope and velocity reconstruction from the Baryon Oscillation Spectroscopic Survey

24. Survey strategy optimization for the Atacama Cosmology Telescope

25. Atacama Cosmology Telescope: Combined kinematic and thermal Sunyaev-Zel’dovich measurements from BOSS CMASS and LOWZ halos

26. The Atacama Cosmology Telescope: Weighing Distant Clusters with the Most Ancient Light

27. The Atacama Cosmology Telescope: arcminute-resolution maps of 18 000 square degrees of the microwave sky from ACT 2008–2018 data combined with Planck

28. The Simons Observatory: science goals and forecasts

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28 results on '"Naess, S"'

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