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1. The Atacama Cosmology Telescope: High-resolution component-separated maps across one-third of the sky

Author

Coulton, William R., Madhavacheril, Mathew S., Duivenvoorden, Adriaan J., Hill, J. Colin, Abril-Cabezas, Irene, Ade, Peter A. R., Aiola, Simone, Alford, Tommy, Amiri, Mandana, Amodeo, Stefania, An, Rui, Atkins, Zachary, Austermann, Jason E., Battaglia, Nicholas, Battistelli, Elia Stefano, Beall, James A., Bean, Rachel, Beringue, Benjamin, Bhandarkar, Tanay, Biermann, Emily, Bolliet, Boris, Bond, J Richard, Cai, Hongbo, Calabrese, Erminia, Calafut, Victoria, Capalbo, Valentina, Carrero, Felipe, Chesmore, Grace E., Cho, Hsiao-mei, Choi, Steve K., Clark, Susan E., Rosado, Rodrigo Córdova, Cothard, Nicholas F., Coughlin, Kevin, Crowley, Kevin T., Devlin, Mark J., Dicker, Simon, Doze, Peter, Duell, Cody J., Duff, Shannon M., Dunkley, Jo, Dünner, Rolando, Fanfani, Valentina, Fankhanel, Max, Farren, Gerrit, Ferraro, Simone, Freundt, Rodrigo, Fuzia, Brittany, Gallardo, Patricio A., Garrido, Xavier, Givans, Jahmour, Gluscevic, Vera, Golec, Joseph E., Guan, Yilun, Halpern, Mark, Han, Dongwon, Hasselfield, Matthew, Healy, Erin, Henderson, Shawn, Hensley, Brandon, Hervías-Caimapo, Carlos, Hilton, Gene C., Hilton, Matt, Hincks, Adam D., Hložek, Renée, Ho, Shuay-Pwu Patty, Huber, Zachary B., Hubmayr, Johannes, Huffenberger, Kevin M., Hughes, John P., Irwin, Kent, Isopi, Giovanni, Jense, Hidde T., Keller, Ben, Kim, Joshua, Knowles, Kenda, Koopman, Brian J., Kosowsky, Arthur, Kramer, Darby, Kusiak, Aleksandra, La Posta, Adrien, Lakey, Victoria, Lee, Eunseong, Li, Zack, Li, Yaqiong, Limon, Michele, Lokken, Martine, Louis, Thibaut, Lungu, Marius, MacCrann, Niall, MacInnis, Amanda, Maldonado, Diego, Maldonado, Felipe, Mallaby-Kay, Maya, Marques, Gabriela A., van Marrewijk, Joshiwa, McCarthy, Fiona, McMahon, Jeff, Mehta, Yogesh, Menanteau, Felipe, Moodley, Kavilan, Morris, Thomas W., Mroczkowski, Tony, Naess, Sigurd, Namikawa, Toshiya, Nati, Federico, Newburgh, Laura, Nicola, Andrina, Niemack, Michael D., Nolta, Michael R., Orlowski-Scherer, John, Page, Lyman A., Pandey, Shivam, Partridge, Bruce, Prince, Heather, Puddu, Roberto, Qu, Frank J., Radiconi, Federico, Robertson, Naomi, Rojas, Felipe, Sakuma, Tai, Salatino, Maria, Schaan, Emmanuel, Schmitt, Benjamin L., Sehgal, Neelima, Shaikh, Shabbir, Sherwin, Blake D., Sierra, Carlos, Sievers, Jon, Sifón, Cristóbal, Simon, Sara, Sonka, Rita, Spergel, David N., Staggs, Suzanne T., Storer, Emilie, Switzer, Eric R., Tampier, Niklas, Thornton, Robert, Trac, Hy, Treu, Jesse, Tucker, Carole, Ullom, Joel, Vale, Leila R., Van Engelen, Alexander, Van Lanen, Jeff, Vargas, Cristian, Vavagiakis, Eve M., Wagoner, Kasey, Wang, Yuhan, Wenzl, Lukas, Wollack, Edward J., Xu, Zhilei, Zago, Fernando, and Zheng, Kaiwen

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

Observations of the millimeter sky contain valuable information on a number of signals, including the blackbody cosmic microwave background (CMB), Galactic emissions, and the Compton-$y$ distortion due to the thermal Sunyaev-Zel'dovich (tSZ) effect. Extracting new insight into cosmological and astrophysical questions often requires combining multi-wavelength observations to spectrally isolate one component. In this work, we present a new arcminute-resolution Compton-$y$ map, which traces out the line-of-sight-integrated electron pressure, as well as maps of the CMB in intensity and E-mode polarization, across a third of the sky (around 13,000 sq.~deg.). We produce these through a joint analysis of data from the Atacama Cosmology Telescope (ACT) Data Release 4 and 6 at frequencies of roughly 93, 148, and 225 GHz, together with data from the \textit{Planck} satellite at frequencies between 30 GHz and 545 GHz. We present detailed verification of an internal linear combination pipeline implemented in a needlet frame that allows us to efficiently suppress Galactic contamination and account for spatial variations in the ACT instrument noise. These maps provide a significant advance, in noise levels and resolution, over the existing \textit{Planck} component-separated maps and will enable a host of science goals including studies of cluster and galaxy astrophysics, inferences of the cosmic velocity field, primordial non-Gaussianity searches, and gravitational lensing reconstruction of the CMB., Comment: The Compton-y map and associated products will be made publicly available upon publication of the paper. The CMB T and E mode maps will be made available when the DR6 maps are made public

Published
2023

2. The Atacama Cosmology Telescope: DR6 Gravitational Lensing Map and Cosmological Parameters

Author

Madhavacheril, Mathew S., Qu, Frank J., Sherwin, Blake D., MacCrann, Niall, Li, Yaqiong, Abril-Cabezas, Irene, Ade, Peter A. R., Aiola, Simone, Alford, Tommy, Amiri, Mandana, Amodeo, Stefania, An, Rui, Atkins, Zachary, Austermann, Jason E., Battaglia, Nicholas, Battistelli, Elia Stefano, Beall, James A., Bean, Rachel, Beringue, Benjamin, Bhandarkar, Tanay, Biermann, Emily, Bolliet, Boris, Bond, J Richard, Cai, Hongbo, Calabrese, Erminia, Calafut, Victoria, Capalbo, Valentina, Carrero, Felipe, Challinor, Anthony, Chesmore, Grace E., Cho, Hsiao-mei, Choi, Steve K., Clark, Susan E., Rosado, Rodrigo Córdova, Cothard, Nicholas F., Coughlin, Kevin, Coulton, William, Crowley, Kevin T., Dalal, Roohi, Darwish, Omar, Devlin, Mark J., Dicker, Simon, Doze, Peter, Duell, Cody J., Duff, Shannon M., Duivenvoorden, Adriaan J., Dunkley, Jo, Dünner, Rolando, Fanfani, Valentina, Fankhanel, Max, Farren, Gerrit, Ferraro, Simone, Freundt, Rodrigo, Fuzia, Brittany, Gallardo, Patricio A., Garrido, Xavier, Givans, Jahmour, Gluscevic, Vera, Golec, Joseph E., Guan, Yilun, Hall, Kirsten R., Halpern, Mark, Han, Dongwon, Harrison, Ian, Hasselfield, Matthew, Healy, Erin, Henderson, Shawn, Hensley, Brandon, Hervías-Caimapo, Carlos, Hill, J. Colin, Hilton, Gene C., Hilton, Matt, Hincks, Adam D., Hložek, Renée, Ho, Shuay-Pwu Patty, Huber, Zachary B., Hubmayr, Johannes, Huffenberger, Kevin M., Hughes, John P., Irwin, Kent, Isopi, Giovanni, Jense, Hidde T., Keller, Ben, Kim, Joshua, Knowles, Kenda, Koopman, Brian J., Kosowsky, Arthur, Kramer, Darby, Kusiak, Aleksandra, La Posta, Adrien, Lague, Alex, Lakey, Victoria, Lee, Eunseong, Li, Zack, Limon, Michele, Lokken, Martine, Louis, Thibaut, Lungu, Marius, MacInnis, Amanda, Maldonado, Diego, Maldonado, Felipe, Mallaby-Kay, Maya, Marques, Gabriela A., McMahon, Jeff, Mehta, Yogesh, Menanteau, Felipe, Moodley, Kavilan, Morris, Thomas W., Mroczkowski, Tony, Naess, Sigurd, Namikawa, Toshiya, Nati, Federico, Newburgh, Laura, Nicola, Andrina, Niemack, Michael D., Nolta, Michael R., Orlowski-Scherer, John, Page, Lyman A., Pandey, Shivam, Partridge, Bruce, Prince, Heather, Puddu, Roberto, Radiconi, Federico, Robertson, Naomi, Rojas, Felipe, Sakuma, Tai, Salatino, Maria, Schaan, Emmanuel, Schmitt, Benjamin L., Sehgal, Neelima, Shaikh, Shabbir, Sierra, Carlos, Sievers, Jon, Sifón, Cristóbal, Simon, Sara, Sonka, Rita, Spergel, David N., Staggs, Suzanne T., Storer, Emilie, Switzer, Eric R., Tampier, Niklas, Thornton, Robert, Trac, Hy, Treu, Jesse, Tucker, Carole, Ullom, Joel, Vale, Leila R., Van Engelen, Alexander, Van Lanen, Jeff, van Marrewijk, Joshiwa, Vargas, Cristian, Vavagiakis, Eve M., Wagoner, Kasey, Wang, Yuhan, Wenzl, Lukas, Wollack, Edward J., Xu, Zhilei, Zago, Fernando, and Zheng, Kaiwen

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Phenomenology
Abstract

We present cosmological constraints from a gravitational lensing mass map covering 9400 sq. deg. reconstructed from CMB measurements made by the Atacama Cosmology Telescope (ACT) from 2017 to 2021. In combination with BAO measurements (from SDSS and 6dF), we obtain the amplitude of matter fluctuations $\sigma_8 = 0.819 \pm 0.015$ at 1.8% precision, $S_8\equiv\sigma_8({\Omega_{\rm m}}/0.3)^{0.5}=0.840\pm0.028$ and the Hubble constant $H_0= (68.3 \pm 1.1)\, \text{km}\,\text{s}^{-1}\,\text{Mpc}^{-1}$ at 1.6% precision. A joint constraint with CMB lensing measured by the Planck satellite yields even more precise values: $\sigma_8 = 0.812 \pm 0.013$, $S_8\equiv\sigma_8({\Omega_{\rm m}}/0.3)^{0.5}=0.831\pm0.023$ and $H_0= (68.1 \pm 1.0)\, \text{km}\,\text{s}^{-1}\,\text{Mpc}^{-1}$. These measurements agree well with $\Lambda$CDM-model extrapolations from the CMB anisotropies measured by Planck. To compare these constraints to those from the KiDS, DES, and HSC galaxy surveys, we revisit those data sets with a uniform set of assumptions, and find $S_8$ from all three surveys are lower than that from ACT+Planck lensing by varying levels ranging from 1.7-2.1$\sigma$. These results motivate further measurements and comparison, not just between the CMB anisotropies and galaxy lensing, but also between CMB lensing probing $z\sim 0.5-5$ on mostly-linear scales and galaxy lensing at $z\sim 0.5$ on smaller scales. We combine our CMB lensing measurements with CMB anisotropies to constrain extensions of $\Lambda$CDM, limiting the sum of the neutrino masses to $\sum m_{\nu} < 0.13$ eV (95% c.l.), for example. Our results provide independent confirmation that the universe is spatially flat, conforms with general relativity, and is described remarkably well by the $\Lambda$CDM model, while paving a promising path for neutrino physics with gravitational lensing from upcoming ground-based CMB surveys., Comment: 32 pages, 17 figures, replaced with version accepted in ApJ (Feb 2024). Cosmological likelihood data and mass maps are public here: https://lambda.gsfc.nasa.gov/product/act/actadv_prod_table.html ; likelihood software is here: https://github.com/ACTCollaboration/act_dr6_lenslike . Also see companion papers Qu et al and MacCrann et al

Published
2023
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3. The Atacama Cosmology Telescope: A Measurement of the DR6 CMB Lensing Power Spectrum and its Implications for Structure Growth

Author

Qu, Frank J., Sherwin, Blake D., Madhavacheril, Mathew S., Han, Dongwon, Crowley, Kevin T., Abril-Cabezas, Irene, Ade, Peter A. R., Aiola, Simone, Alford, Tommy, Amiri, Mandana, Amodeo, Stefania, An, Rui, Atkins, Zachary, Austermann, Jason E., Battaglia, Nicholas, Battistelli, Elia Stefano, Beall, James A., Bean, Rachel, Beringue, Benjamin, Bhandarkar, Tanay, Biermann, Emily, Bolliet, Boris, Bond, J Richard, Cai, Hongbo, Calabrese, Erminia, Calafut, Victoria, Capalbo, Valentina, Carrero, Felipe, Carron, Julien, Challinor, Anthony, Chesmore, Grace E., Cho, Hsiao-mei, Choi, Steve K., Clark, Susan E., Rosado, Rodrigo Córdova, Cothard, Nicholas F., Coughlin, Kevin, Coulton, William, Dalal, Roohi, Darwish, Omar, Devlin, Mark J., Dicker, Simon, Doze, Peter, Duell, Cody J., Duff, Shannon M., Duivenvoorden, Adriaan J., Dunkley, Jo, Dünner, Rolando, Fanfani, Valentina, Fankhanel, Max, Farren, Gerrit, Ferraro, Simone, Freundt, Rodrigo, Fuzia, Brittany, Gallardo, Patricio A., Garrido, Xavier, Gluscevic, Vera, Golec, Joseph E., Guan, Yilun, Halpern, Mark, Harrison, Ian, Hasselfield, Matthew, Healy, Erin, Henderson, Shawn, Hensley, Brandon, Hervías-Caimapo, Carlos, Hill, J. Colin, Hilton, Gene C., Hilton, Matt, Hincks, Adam D., Hložek, Renée, Ho, Shuay-Pwu Patty, Huber, Zachary B., Hubmayr, Johannes, Huffenberger, Kevin M., Hughes, John P., Irwin, Kent, Isopi, Giovanni, Jense, Hidde T., Keller, Ben, Kim, Joshua, Knowles, Kenda, Koopman, Brian J., Kosowsky, Arthur, Kramer, Darby, Kusiak, Aleksandra, La Posta, Adrien, Lague, Alex, Lakey, Victoria, Lee, Eunseong, Li, Zack, Li, Yaqiong, Limon, Michele, Lokken, Martine, Louis, Thibaut, Lungu, Marius, MacCrann, Niall, MacInnis, Amanda, Maldonado, Diego, Maldonado, Felipe, Mallaby-Kay, Maya, Marques, Gabriela A., McMahon, Jeff, Mehta, Yogesh, Menanteau, Felipe, Moodley, Kavilan, Morris, Thomas W., Mroczkowski, Tony, Naess, Sigurd, Namikawa, Toshiya, Nati, Federico, Newburgh, Laura, Nicola, Andrina, Niemack, Michael D., Nolta, Michael R., Orlowski-Scherer, John, Page, Lyman A., Pandey, Shivam, Partridge, Bruce, Prince, Heather, Puddu, Roberto, Radiconi, Federico, Robertson, Naomi, Rojas, Felipe, Sakuma, Tai, Salatino, Maria, Schaan, Emmanuel, Schmitt, Benjamin L., Sehgal, Neelima, Shaikh, Shabbir, Sierra, Carlos, Sievers, Jon, Sifón, Cristóbal, Simon, Sara, Sonka, Rita, Spergel, David N., Staggs, Suzanne T., Storer, Emilie, Switzer, Eric R., Tampier, Niklas, Thornton, Robert, Trac, Hy, Treu, Jesse, Tucker, Carole, Ulluom, Joel, Vale, Leila R., Van Engelen, Alexander, Van Lanen, Jeff, van Marrewijk, Joshiwa, Vargas, Cristian, Vavagiakis, Eve M., Wagoner, Kasey, Wang, Yuhan, Wenzl, Lukas, Wollack, Edward J., Xu, Zhilei, Zago, Fernando, and Zhang, Kaiwen

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present new measurements of cosmic microwave background (CMB) lensing over $9400$ sq. deg. of the sky. These lensing measurements are derived from the Atacama Cosmology Telescope (ACT) Data Release 6 (DR6) CMB dataset, which consists of five seasons of ACT CMB temperature and polarization observations. We determine the amplitude of the CMB lensing power spectrum at $2.3\%$ precision ($43\sigma$ significance) using a novel pipeline that minimizes sensitivity to foregrounds and to noise properties. To ensure our results are robust, we analyze an extensive set of null tests, consistency tests, and systematic error estimates and employ a blinded analysis framework. The baseline spectrum is well fit by a lensing amplitude of $A_{\mathrm{lens}}=1.013\pm0.023$ relative to the Planck 2018 CMB power spectra best-fit $\Lambda$CDM model and $A_{\mathrm{lens}}=1.005\pm0.023$ relative to the $\text{ACT DR4} + \text{WMAP}$ best-fit model. From our lensing power spectrum measurement, we derive constraints on the parameter combination $S^{\mathrm{CMBL}}_8 \equiv \sigma_8 \left({\Omega_m}/{0.3}\right)^{0.25}$ of $S^{\mathrm{CMBL}}_8= 0.818\pm0.022$ from ACT DR6 CMB lensing alone and $S^{\mathrm{CMBL}}_8= 0.813\pm0.018$ when combining ACT DR6 and Planck NPIPE CMB lensing power spectra. These results are in excellent agreement with $\Lambda$CDM model constraints from Planck or $\text{ACT DR4} + \text{WMAP}$ CMB power spectrum measurements. Our lensing measurements from redshifts $z\sim0.5$--$5$ are thus fully consistent with $\Lambda$CDM structure growth predictions based on CMB anisotropies probing primarily $z\sim1100$. We find no evidence for a suppression of the amplitude of cosmic structure at low redshifts, Comment: 45+22 pages, 50 figures. v2 matches with published version in ApJ. Cosmological likelihood data and lensing maps are here: https://lambda.gsfc.nasa.gov/product/act/actadv_prod_table.html ; likelihood software is here: https://github.com/ACTCollaboration/act_dr6_lenslike . Also see companion papers Madhavacheril et al and MacCrann et al

Published
2023
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4. International Consensus Statement on Obstructive Sleep Apnea

Author

Chang, Jolie L, Goldberg, Andrew N, Alt, Jeremiah A, Mohammed, Alzoubaidi, Ashbrook, Liza, Auckley, Dennis, Ayappa, Indu, Bakhtiar, Hira, Barrera, José E, Bartley, Bethany L, Billings, Martha E, Boon, Maurits S, Bosschieter, Pien, Braverman, Itzhak, Brodie, Kara, Cabrera‐Muffly, Cristina, Caesar, Ray, Cahali, Michel B, Cai, Yi, Cao, Michelle, Capasso, Robson, Caples, Sean M, Chahine, Lana M, Chang, Corissa P, Chang, Katherine W, Chaudhary, Nilika, Cheong, Crystal SJ, Chowdhuri, Susmita, Cistulli, Peter A, Claman, David, Collen, Jacob, Coughlin, Kevin C, Creamer, Jennifer, Davis, Eric M, Dupuy‐McCauley, Kara L, Durr, Megan L, Dutt, Mohan, Ali, Mazen El, Elkassabany, Nabil M, Epstein, Lawrence J, Fiala, Justin A, Freedman, Neil, Gill, Kirat, Gillespie, M Boyd, Golisch, Lea, Gooneratne, Nalaka, Gottlieb, Daniel J, Green, Katherine K, Gulati, Arushi, Gurubhagavatula, Indira, Hayward, Nathan, Hoff, Paul T, Hoffmann, Oliver MG, Holfinger, Steven J, Hsia, Jennifer, Huntley, Colin, Huoh, Kevin C, Huyett, Phillip, Inala, Sanjana, Ishman, Stacey L, Jella, Tarun K, Jobanputra, Aesha M, Johnson, Andrew P, Junna, Mithri R, Kado, Jenna T, Kaffenberger, Thomas M, Kapur, Vishesh K, Kezirian, Eric J, Khan, Meena, Kirsch, Douglas B, Kominsky, Alan, Kryger, Meir, Krystal, Andrew D, Kushida, Clete A, Kuzniar, Thomas J, Lam, Derek J, Lettieri, Christopher J, Lim, Diane C, Lin, Hsin‐Ching, Liu, Stanley YC, MacKay, Stuart G, Magalang, Ulysses J, Malhotra, Atul, Mansukhani, Meghna P, Maurer, Joachim T, May, Anna M, Mitchell, Ron B, Mokhlesi, Babak, Mullins, Anna E, Nada, Eman M, Naik, Sreelatha, Nokes, Brandon, Olson, Michael D, Pack, Allan I, Pang, Edward B, Pang, Kenny P, Patil, Susheel P, Van de Perck, Eli, Piccirillo, Jay F, and Pien, Grace W

Subjects
Biomedical and Clinical Sciences, Cardiovascular Medicine and Haematology, Health Services, Lung, Sleep Research, Clinical Research, Prevention, Respiratory, Good Health and Well Being, Adult, Humans, Sleep Apnea, Obstructive, Continuous Positive Airway Pressure, Polysomnography, Risk Factors, atrial fibrillation, cardiovascular event, cerebrovascular disease, consensus, dementia, evidence-based medicine, home sleep apnea testing, hypertension, hypoglossal nerve stimulation, mortality, motor vehicle accidents, neurocognitive function, obstructive sleep apnea, outcomes, PAP adherence, perioperative management, polysomnography, positive airway pressure, screening, sleep, sleep disordered breathing, sleepiness, sleep surgery, surgical outcomes, systematic review, treatment outcomes, uvulopalatopharyngoplasty, Immunology, Clinical sciences
Abstract

BackgroundEvaluation and interpretation of the literature on obstructive sleep apnea (OSA) allows for consolidation and determination of the key factors important for clinical management of the adult OSA patient. Toward this goal, an international collaborative of multidisciplinary experts in sleep apnea evaluation and treatment have produced the International Consensus statement on Obstructive Sleep Apnea (ICS:OSA).MethodsUsing previously defined methodology, focal topics in OSA were assigned as literature review (LR), evidence-based review (EBR), or evidence-based review with recommendations (EBR-R) formats. Each topic incorporated the available and relevant evidence which was summarized and graded on study quality. Each topic and section underwent iterative review and the ICS:OSA was created and reviewed by all authors for consensus.ResultsThe ICS:OSA addresses OSA syndrome definitions, pathophysiology, epidemiology, risk factors for disease, screening methods, diagnostic testing types, multiple treatment modalities, and effects of OSA treatment on multiple OSA-associated comorbidities. Specific focus on outcomes with positive airway pressure (PAP) and surgical treatments were evaluated.ConclusionThis review of the literature consolidates the available knowledge and identifies the limitations of the current evidence on OSA. This effort aims to create a resource for OSA evidence-based practice and identify future research needs. Knowledge gaps and research opportunities include improving the metrics of OSA disease, determining the optimal OSA screening paradigms, developing strategies for PAP adherence and longitudinal care, enhancing selection of PAP alternatives and surgery, understanding health risk outcomes, and translating evidence into individualized approaches to therapy.

Published
2023

6. Non-invasive Respiratory Support or Intubation during Stabilization after Birth and Neonatal and Neurodevelopmental Outcomes in Infants Born Preterm at 23-25 Weeks of Gestation

Author

Beltempo, Marc, Shah, Prakesh S., Pillay, Thevanisha, Wong, Jonathan, Stavel, Miroslav, Sherlock, Rebecca, Mehrem, Ayman Abou, Toye, Jennifer, Ting, Joseph, Fajardo, Carlos, Harabor, Andrei, Strueby, Lannae, Seshia, Mary, Louis, Deepak, Ruth, Chelsea, Yi, Ann, Mukerji, Amit, Da Silva, Orlando, Augustine, Sajit, Lee, Kyong-Soon, Ng, Eugene, Lemyre, Brigitte, Khurshid, Faiza, Bizgu, Victoria, Nouraeyan, Nina, Barrington, Keith, Lapointe, Anie, Drolet, Christine, Claveau, Martine, St-Hilaire, Marie, Bertelle, Valerie, Masse, Edith, Barbosa de Oliveira, Caio, Makary, Hala, de Carvalho Nunes, Gabriela, Alburaki, Wissam, Hudson, Jo-Anna, Afifi, Jehier, Kajetanowicz, Andrzej, Piedboeuf, Bruno, Whittle, Wendy, Agarwal, Swati, Lim, Kenneth, Liauw, Jessica, El-Chaar, Darine, Theriault, Katherine, Roy-Lacroix, Marie-Ève, Butt, Kimberly, O’Quinn, Candace, Pylypjuk, Christy, Boucoiran, Isabelle, Taillefer, Catherine, Crane, Joan, Abenhaim, Haim, Smith, Graeme, Wou, Karen, Chandra, Sue, Ubhi, Jagdeep, Figueiro-Filho, Ernesto, Helewa, Michael, Grigoriu, Ariadna, Gratton, Rob, Chan, Cynthia, de Caralho Nunes, Gabriela, Porto, Ludmila, Melamed, Nir, Burrows, Jason, Wesson, Lara, MacLellan, Erin, Hayward, James, Allen, Victoria, VanDyk, Jessie, Moodley, Anitha, Hendson, Leonora, Benlamri, Amina, Reichert, Amber, Shafey, Amy, Moddemann, Diane, de Cabo, Cecilia, Ricci, M. Florencia, Seesahai, Judy, McKnight, Sarah, Coughlin, Kevin, Ly, Linh, Raghuram, Kamini, Thomas, Karen, Banihani, Rudaina, Nguyen, Kim-Anh, Khairy, May, Garfinkle, Jarred, Luu, Thuy Mai, Morin, Alyssa, Bélanger, Sylvie, Lipp, Rachel, Lodha, Abhay, Weisz, Dany, McKanna, Julie, Matthews, Ian, Hicks, Matthew, Alvaro, Ruben, and Abou Mehrem, Ayman

Published
2024
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7. Neonatal and Early Childhood Outcomes of Twin and Singleton Infants Born Preterm

Author

Shah, Prakesh S., Beltempo, Marc, Kanungo, Jaideep, Wong, Jonathan, Stavel, Miroslav, Sherlock, Rebecca, Mehrem, Ayman Abou, Toye, Jennifer, Ting, Joseph, Fajardo, Carlos, Bodani, Jaya, Strueby, Lannae, Seshia, Mary, Louis, Deepak, Alvaro, Ruben, Mukerji, Amit, Da Silva, Orlando, Augustine, Sajit, Lee, Kyong-Soon, Ng, Eugene, Lemyre, Brigitte, Daboval, Thierry, Khurshid, Faiza, Bizgu, Victoria, Barrington, Keith, Lapointe, Anie, Ethier, Guillaume, Drolet, Christine, Piedboeuf, Bruno, Claveau, Martine, St-Hilaire, Marie, Bertelle, Valerie, Masse, Edith, Mehdizadeh-Hakak, Hamid, Makary, Hala, Ojah, Cecil, Hudson, Jo-Anna, Afifi, Jehier, Aslam, Ameer, Lee, Shoo K., Abenhaim, Haim, Andrews, James, Armson, Anthony, Audibert, Francois, Aziz, Khalid, Ballantyne, Marilyn, Barrett, Jon, Berard, Anick, Blais, Lucie, Bocking, Alan, Burrows, Jason, Butt, Kimberly, Canning, Roderick, Carson, George, Chaillet, Nils, Chandra, Sue, Church, Paige, Cieslak, Zenon, Coughlin, Kevin, Crane, Joan, Creighton, Dianne, Dahlgren, Leanne, Daspal, Sibasis, de Cabo, Cecilia, Deshpandey, Akhil, Dow, Kimberly, Dunn, Michael, Helou, Salhab el, El-Chaar, Darine, El-Naggar, Walid, Foster, Jonathan, Gagnon, Robert, Gratton, Rob, Han, Victor, Harrison, Adele, Hasan, Shabih, Helewa, Michael, Hicks, Matthew, Joseph, K.S., Kajetanowicz, Andrzej, Kalapesi, Zarin, Khairy, May, Lacaze-Masmonteil, Thierry, Lodha, Abhay, Luu, Thuy Mai, Ly, Linh, Majnemer, Annette, Marc, Isabelle, McDonald, Sarah D., McMillan, Doug, Melamed, Nir, Metcalfe, Amy, Moddemann, Diane, Monterrosa, Luis, Morais, Michelle, Mundle, William, Murphy, Lynn, Murphy, Kellie, Nuyt, Anne-Monique, Nwaesei, Chuks, O'Brien, Karel, Offringa, Martin, Ouellet, Annie, Pasquier, Jean-Charles, Pechlivanoglou, Petros, Pelausa, Ermelinda, Portales-Casamar, Elodie, Premji, Shahirose, Puligandla, Pramod, Pullenayegum, Eleanor, Reichert, Amber, Robson, Kate, Schneider, Carol, Shah, Vibhuti, Shivananda, Sandesh, Singhal, Nalini, Skarsgard, Erik, Skoll, Amanda, Smith, Graeme, Synnes, Anne, Thériault, Katherine, Tough, Suzanne, Ubhi, Jagdeep, Vincer, Michael, Whittle, Wendy, Whyte, Hilary, Wilson, Doug, Wood, Stephen, Ye, Philip, Yee, Wendy, Zwicker, Jill, Pillay, Thevanisha, Synnes’, Anne, Colby, Lindsay, Anson, Shelagh, Moodley, Anitha, Hendson, Leonora, Ricci, M. Florencia, McKnight, Sarah, Kelly, Edmond, Raghuram, Kamini, Thomas, Karen, Banihani, Rudaina, Nguyen, Kim-Anh, Mandel, Ruth, Morin, Alyssa, Bélanger, Sylvie, Weitzner, Omer, and Yang, Junmin

Published
2023
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8. The Simons Observatory: Astro2020 Decadal Project Whitepaper

Author

The Simons Observatory Collaboration, Abitbol, Maximilian H., Adachi, Shunsuke, Ade, Peter, Aguirre, James, Ahmed, Zeeshan, Aiola, Simone, Ali, Aamir, Alonso, David, Alvarez, Marcelo A., Arnold, Kam, Ashton, Peter, Atkins, Zachary, Austermann, Jason, Awan, Humna, Baccigalupi, Carlo, Baildon, Taylor, Lizancos, Anton Baleato, Barron, Darcy, Battaglia, Nick, Battye, Richard, Baxter, Eric, Bazarko, Andrew, Beall, James A., Bean, Rachel, Beck, Dominic, Beckman, Shawn, Beringue, Benjamin, Bhandarkar, Tanay, Bhimani, Sanah, Bianchini, Federico, Boada, Steven, Boettger, David, Bolliet, Boris, Bond, J. Richard, Borrill, Julian, Brown, Michael L., Bruno, Sarah Marie, Bryan, Sean, Calabrese, Erminia, Calafut, Victoria, Calisse, Paolo, Carron, Julien, Carl, Fred. M, Cayuso, Juan, Challinor, Anthony, Chesmore, Grace, Chinone, Yuji, Chluba, Jens, Cho, Hsiao-Mei Sherry, Choi, Steve, Clark, Susan, Clarke, Philip, Contaldi, Carlo, Coppi, Gabriele, Cothard, Nicholas F., Coughlin, Kevin, Coulton, Will, Crichton, Devin, Crowley, Kevin D., Crowley, Kevin T., Cukierman, Ari, D'Ewart, John M., Dünner, Rolando, de Haan, Tijmen, Devlin, Mark, Dicker, Simon, Dober, Bradley, Duell, Cody J., Duff, Shannon, Duivenvoorden, Adri, Dunkley, Jo, Bouhargani, Hamza El, Errard, Josquin, Fabbian, Giulio, Feeney, Stephen, Fergusson, James, Ferraro, Simone, Fluxà, Pedro, Freese, Katherine, Frisch, Josef C., Frolov, Andrei, Fuller, George, Galitzki, Nicholas, Gallardo, Patricio A., Ghersi, Jose Tomas Galvez, 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., Halpern, Mark, Han, Dongwon, Hargrave, Peter, Harrington, Kathleen, Hasegawa, Masaya, Hasselfield, Matthew, Hattori, Makoto, Haynes, Victor, Hazumi, Masashi, Healy, Erin, Henderson, Shawn W., Hensley, Brandon, Hervias-Caimapo, Carlos, Hill, Charles A., Hill, J. Colin, Hilton, Gene, Hilton, Matt, Hincks, Adam D., Hinshaw, Gary, Hložek, Renée, Ho, Shirley, Ho, Shuay-Pwu Patty, Hoang, Thuong D., Hoh, Jonathan, Hotinli, Selim C., Huang, Zhiqi, Hubmayr, Johannes, Huffenberger, Kevin, Hughes, John P., Ijjas, Anna, Ikape, Margaret, Irwin, Kent, Jaffe, Andrew H., Jain, Bhuvnesh, Jeong, Oliver, Johnson, Matthew, Kaneko, Daisuke, Karpel, Ethan D., Katayama, Nobuhiko, Keating, Brian, Keskitalo, Reijo, Kisner, Theodore, Kiuchi, Kenji, Klein, Jeff, Knowles, Kenda, Kofman, Anna, Koopman, Brian, Kosowsky, Arthur, Krachmalnicoff, Nicoletta, Kusaka, Akito, LaPlante, Phil, Lashner, Jacob, Lee, Adrian, Lee, Eunseong, Lewis, Antony, Li, Yaqiong, Li, Zack, Limon, Michele, Linder, Eric, Liu, Jia, Lopez-Caraballo, Carlos, Louis, Thibaut, Lungu, Marius, Madhavacheril, Mathew, Mak, Daisy, Maldonado, Felipe, Mani, Hamdi, Mates, Ben, Matsuda, Frederick, Maurin, Loïc, Mauskopf, Phil, May, Andrew, McCallum, Nialh, McCarrick, Heather, McKenney, Chris, McMahon, Jeff, Meerburg, P. Daniel, Mertens, James, Meyers, Joel, Miller, Amber, Mirmelstein, Mark, Moodley, Kavilan, Moore, Jenna, Munchmeyer, Moritz, Munson, Charles, Murata, Masaaki, Naess, Sigurd, Namikawa, Toshiya, Nati, Federico, Navaroli, Martin, Newburgh, Laura, Nguyen, Ho Nam, Nicola, Andrina, Niemack, Mike, Nishino, Haruki, Nishinomiya, Yume, Orlowski-Scherer, John, Pagano, Luca, Partridge, Bruce, Perrotta, Francesca, Phakathi, Phumlani, Piccirillo, Lucio, Pierpaoli, Elena, Pisano, Giampaolo, Poletti, Davide, Puddu, Roberto, Puglisi, Giuseppe, Raum, Chris, Reichardt, Christian L., Remazeilles, Mathieu, Rephaeli, Yoel, Riechers, Dominik, Rojas, Felipe, Rotti, Aditya, Roy, Anirban, Sadeh, Sharon, Sakurai, Yuki, Salatino, Maria, Rao, Mayuri Sathyanarayana, Saunders, Lauren, Schaan, Emmanuel, Schmittfull, Marcel, Sehgal, Neelima, Seibert, Joseph, Seljak, Uros, Shellard, Paul, Sherwin, Blake, Shimon, Meir, Sierra, Carlos, Sievers, Jonathan, Sifon, Cristobal, Sikhosana, Precious, Silva-Feaver, Maximiliano, Simon, Sara M., Sinclair, Adrian, Smith, Kendrick, Sohn, Wuhyun, Sonka, Rita, Spergel, David, Spisak, Jacob, Staggs, Suzanne T., Stein, George, Stevens, Jason R., Stompor, Radek, Suzuki, Aritoki, Tajima, Osamu, Takakura, Satoru, Teply, Grant, Thomas, Daniel B., Thorne, Ben, Thornton, Robert, Trac, Hy, Treu, Jesse, Tsai, Calvin, Tucker, Carole, Ullom, Joel, Vagnozzi, Sunny, van Engelen, Alexander, Van Lanen, Jeff, Van Winkle, Daniel D., Vavagiakis, Eve M., Vergès, Clara, Vissers, Michael, Wagoner, Kasey, Walker, Samantha, Wang, Yuhan, Ward, Jon, Westbrook, Ben, Whitehorn, Nathan, Williams, Jason, Williams, Joel, Wollack, Edward, Xu, Zhilei, Yasini, Siavash, Young, Edward, Yu, Byeonghee, Yu, Cyndia, Zago, Fernando, Zannoni, Mario, Zhang, Hezi, Zheng, Kaiwen, Zhu, Ningfeng, and Zonca, Andrea

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

The Simons Observatory (SO) is a ground-based cosmic microwave background (CMB) experiment sited on Cerro Toco in the Atacama Desert in Chile that promises to provide breakthrough discoveries in fundamental physics, cosmology, and astrophysics. Supported by the Simons Foundation, the Heising-Simons Foundation, and with contributions from collaborating institutions, SO will see first light in 2021 and start a five year survey in 2022. SO has 287 collaborators from 12 countries and 53 institutions, including 85 students and 90 postdocs. The SO experiment in its currently funded form ('SO-Nominal') consists of three 0.4 m Small Aperture Telescopes (SATs) and one 6 m Large Aperture Telescope (LAT). Optimized for minimizing systematic errors in polarization measurements at large angular scales, the SATs will perform a deep, degree-scale survey of 10% of the sky to search for the signature of primordial gravitational waves. The LAT will survey 40% of the sky with arc-minute resolution. These observations will measure (or limit) the sum of neutrino masses, search for light relics, measure the early behavior of Dark Energy, and refine our understanding of the intergalactic medium, clusters and the role of feedback in galaxy formation. With up to ten times the sensitivity and five times the angular resolution of the Planck satellite, and roughly an order of magnitude increase in mapping speed over currently operating ("Stage 3") experiments, SO will measure the CMB temperature and polarization fluctuations to exquisite precision in six frequency bands from 27 to 280 GHz. SO will rapidly advance CMB science while informing the design of future observatories such as CMB-S4., Comment: Astro2020 Decadal Project Whitepaper. arXiv admin note: text overlap with arXiv:1808.07445

Published
2019

9. Studies of Systematic Uncertainties for Simons Observatory: Polarization Modulator Related Effects

Author

Salatino, Maria, Lashner, Jacob, Gerbino, Martina, Simon, Sara M., Didier, Joy, Ali, Aamir, Ashton, Peter C., Bryan, Sean, Chinone, Yuji, Coughlin, Kevin, Crowley, Kevin T., Fabbian, Giulio, Galitzki, Nicholas, Goeckner-Wald, Neil, Golec, Joseph E., Gudmundsson, Jon E., Hill, Charles A., Keating, Brian, Kusaka, Akito, Lee, Adrian T., McMahon, Jeffrey, Miller, Amber D., Puglisi, Giuseppe, Reichardt, Christian L., Teply, Grant, Xu, Zhilei, and Zhu, Ningfeng

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The Simons Observatory (SO) will observe the temperature and polarization anisotropies of the cosmic microwave background (CMB) over a wide range of frequencies (27 to 270 GHz) and angular scales by using both small (0.5 m) and large (6 m) aperture telescopes. The SO small aperture telescopes will target degree angular scales where the primordial B-mode polarization signal is expected to peak. The incoming polarization signal of the small aperture telescopes will be modulated by a cryogenic, continuously-rotating half-wave plate (CRHWP) to mitigate systematic effects arising from slowly varying noise and detector pair-differencing. In this paper, we present an assessment of some systematic effects arising from using a CRHWP in the SO small aperture systems. We focus on systematic effects associated with structural properties of the HWP and effects arising when operating a HWP, including the amplitude of the HWP synchronous signal (HWPSS), and I -> P (intensity to polarization) leakage that arises from detector non-linearity in the presence of a large HWPSS. We demonstrate our ability to simulate the impact of the aforementioned systematic effects in the time domain. This important step will inform mitigation strategies and design decisions to ensure that SO will meet its science goals., Comment: 22 pages, 10 figures. Submitted to the Proceedings of SPIE: Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX

Published
2018

10. The Simons Observatory: Science goals and forecasts

Author

The Simons Observatory Collaboration, 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, Bond, J. Richard, 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, John M., Dünner, Rolando, de Haan, Tijmen, Devlin, Mark, Dicker, Simon, Didier, Joy, Dobbs, Matt, Dober, Bradley, Duell, Cody J., Duff, Shannon, Duivenvoorden, Adri, Dunkley, Jo, Dusatko, John, Errard, Josquin, Fabbian, Giulio, Feeney, Stephen, Ferraro, Simone, Fluxà, Pedro, Freese, Katherine, Frisch, Josef C., Frolov, Andrei, Fuller, George, Fuzia, Brittany, Galitzki, Nicholas, Gallardo, Patricio A., Ghersi, Jose Tomas Galvez, 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 W., Hervias-Caimapo, Carlos, Hill, Charles A., Hill, J. Colin, 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 D., Katayama, Nobuhiko, Keating, Brian, Kernasovskiy, Sarah S., Keskitalo, Reijo, Kisner, Theodore, Kiuchi, Kenji, Klein, Jeff, Knowles, Kenda, Koopman, Brian, Kosowsky, Arthur, Krachmalnicoff, Nicoletta, Kuenstner, Stephen E., 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, Meerburg, P. Daniel, Meyers, Joel, Miller, Amber, Mirmelstein, Mark, Moodley, Kavilan, Munchmeyer, Moritz, Munson, Charles, Naess, Sigurd, Nati, Federico, Navaroli, Martin, Newburgh, Laura, Nguyen, Ho Nam, Niemack, Michael, 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, Maximiliano, Simon, Sara M., Sinclair, Adrian, Siritanasak, Praween, Smith, Kendrick, Smith, Stephen R., Spergel, David, Staggs, Suzanne T., 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, Daniel D., 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, Yu, Byeonghee, Yu, Cyndia, Zago, Fernando, Zhang, Hezi, and Zhu, Ningfeng

Subjects
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

Published
2018
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11. The Simons Observatory: Astro2020 Decadal Project Whitepaper

Author

Collaboration, The Simons Observatory, Abitbol, Maximilian H, Adachi, Shunsuke, Ade, Peter, Aguirre, James, Ahmed, Zeeshan, Aiola, Simone, Ali, Aamir, Alonso, David, Alvarez, Marcelo A, Arnold, Kam, Ashton, Peter, Atkins, Zachary, Austermann, Jason, Awan, Humna, Baccigalupi, Carlo, Baildon, Taylor, Lizancos, Anton Baleato, Barron, Darcy, Battaglia, Nick, Battye, Richard, Baxter, Eric, Bazarko, Andrew, Beall, James A, Bean, Rachel, Beck, Dominic, Beckman, Shawn, Beringue, Benjamin, Bhandarkar, Tanay, Bhimani, Sanah, Bianchini, Federico, Boada, Steven, Boettger, David, Bolliet, Boris, Bond, J Richard, Borrill, Julian, Brown, Michael L, Bruno, Sarah Marie, Bryan, Sean, Calabrese, Erminia, Calafut, Victoria, Calisse, Paolo, Carron, Julien, Carl, Fred M, Cayuso, Juan, Challinor, Anthony, Chesmore, Grace, Chinone, Yuji, Chluba, Jens, Cho, Hsiao-Mei Sherry, Choi, Steve, Clark, Susan, Clarke, Philip, Contaldi, Carlo, Coppi, Gabriele, Cothard, Nicholas F, Coughlin, Kevin, Coulton, Will, Crichton, Devin, Crowley, Kevin D, Crowley, Kevin T, Cukierman, Ari, D'Ewart, John M, Dünner, Rolando, Haan, Tijmen de, Devlin, Mark, Dicker, Simon, Dober, Bradley, Duell, Cody J, Duff, Shannon, Duivenvoorden, Adri, Dunkley, Jo, Bouhargani, Hamza El, Errard, Josquin, Fabbian, Giulio, Feeney, Stephen, Fergusson, James, Ferraro, Simone, Fluxà, Pedro, Freese, Katherine, Frisch, Josef C, Frolov, Andrei, Fuller, George, Galitzki, Nicholas, Gallardo, Patricio A, Ghersi, Jose Tomas Galvez, 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, and Gudmundsson, Jon E

Subjects
astro-ph.IM
Abstract

The Simons Observatory (SO) is a ground-based cosmic microwave background(CMB) experiment sited on Cerro Toco in the Atacama Desert in Chile thatpromises to provide breakthrough discoveries in fundamental physics, cosmology,and astrophysics. Supported by the Simons Foundation, the Heising-SimonsFoundation, and with contributions from collaborating institutions, SO will seefirst light in 2021 and start a five year survey in 2022. SO has 287collaborators from 12 countries and 53 institutions, including 85 students and90 postdocs. The SO experiment in its currently funded form ('SO-Nominal') consists ofthree 0.4 m Small Aperture Telescopes (SATs) and one 6 m Large ApertureTelescope (LAT). Optimized for minimizing systematic errors in polarizationmeasurements at large angular scales, the SATs will perform a deep,degree-scale survey of 10% of the sky to search for the signature of primordialgravitational waves. The LAT will survey 40% of the sky with arc-minuteresolution. These observations will measure (or limit) the sum of neutrinomasses, search for light relics, measure the early behavior of Dark Energy, andrefine our understanding of the intergalactic medium, clusters and the role offeedback in galaxy formation. With up to ten times the sensitivity and five times the angular resolution ofthe Planck satellite, and roughly an order of magnitude increase in mappingspeed over currently operating ("Stage 3") experiments, SO will measure the CMBtemperature and polarization fluctuations to exquisite precision in sixfrequency bands from 27 to 280 GHz. SO will rapidly advance CMB science whileinforming the design of future observatories such as CMB-S4.

Published
2019

12. 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, Bond, J Richard, 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, John M, Dünner, Rolando, de Haan, Tijmen, Devlin, Mark, Dicker, Simon, Didier, Joy, Dobbs, Matt, Dober, Bradley, Duell, Cody J, Duff, Shannon, Duivenvoorden, Adri, Dunkley, Jo, Dusatko, John, Errard, Josquin, Fabbian, Giulio, Feeney, Stephen, Ferraro, Simone, Fluxà, Pedro, Freese, Katherine, Frisch, Josef C, Frolov, Andrei, Fuller, George, Fuzia, Brittany, Galitzki, Nicholas, Gallardo, Patricio A, Ghersi, Jose Tomas Galvez, 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 W, Hervias-Caimapo, Carlos, and Hill, Charles A

Subjects
Particle and High Energy Physics, Astronomical Sciences, Physical Sciences, CMBR experiments, CMBR polarisation, cosmological parameters from CMBR, astro-ph.CO, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics, Astronomical sciences, Particle and high energy physics
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 centered at: 27, 39, 93, 145, 225 and 280 GHz. The initial configuration of SO will have three small-aperture 0.5-m telescopes and one large-aperture 6-m telescope, 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 small aperture telescopes will target the largest angular scales observable from Chile, mapping 10% of the sky to a white noise level of 2 μK-arcmin in combined 93 and 145 GHz bands, to measure the primordial tensor-to-scalar ratio, r, at a target level of σ(r)=0.003. The large aperture telescope will map 40% of the sky at arcminute angular resolution to an expected white noise level of 6 μK-arcmin in combined 93 and 145 GHz bands, overlapping with the majority of the Large Synoptic Survey Telescope sky region and partially with the Dark Energy Spectroscopic Instrument. 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.

Published
2019

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

Author

Louis, Thibaut, Grace, Emily, Hasselfield, Matthew, Lungu, Marius, Maurin, Loïc, Addison, Graeme E., Ade, Peter A. R., Aiola, Simone, Allison, Rupert, Amiri, Mandana, Angile, Elio, Battaglia, Nicholas, Beall, James A., de Bernardis, Francesco, Bond, J. Richard, Britton, Joe, Calabrese, Erminia, Cho, Hsiao-mei, Choi, Steve K., Coughlin, Kevin, Crichton, Devin, Crowley, Kevin, Datta, Rahul, Devlin, Mark J., Dicker, Simon R., Dunkley, Joanna, Dünner, Rolando, Ferraro, Simone, Fox, Anna E., Gallardo, Patricio, Gralla, Megan, Halpern, Mark, Henderson, Shawn, Hill, J. Colin, Hilton, Gene C., Hilton, Matt, Hincks, Adam D., Hlozek, Renée, Ho, S. P. Patty, Huang, Zhiqi, Hubmayr, Johannes, Huffenberger, Kevin M., Hughes, John P., Infante, Leopoldo, Irwin, Kent, Kasanda, Simon Muya, Klein, Jeff, Koopman, Brian, Kosowsky, Arthur, Li, Dale, Madhavacheril, Mathew, Marriage, Tobias A., McMahon, Jeff, Menanteau, Felipe, Moodley, Kavilan, Munson, Charles, Naess, Sigurd, Nati, Federico, Newburgh, Laura, Nibarger, John, Niemack, Michael D., Nolta, Michael R., Nuñez, Carolina, Page, Lyman A., Pappas, Christine, Partridge, Bruce, Rojas, Felipe, Schaan, Emmanuel, Schmitt, Benjamin L., Sehgal, Neelima, Sherwin, Blake D., Sievers, Jon, Simon, Sara, Spergel, David N., Staggs, Suzanne T., Switzer, Eric R., Thornton, Robert, Trac, Hy, Treu, Jesse, Tucker, Carole, Van Engelen, Alexander, Ward, Jonathan T., and Wollack, Edward J.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
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%., Comment: 23 pages, 25 figures

Published
2016
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14. Atacama Cosmology Telescope: High-resolution component-separated maps across one third of the sky

Author

Coulton, William, primary, Madhavacheril, Mathew S., additional, Duivenvoorden, Adriaan J., additional, Hill, J. Colin, additional, Abril-Cabezas, Irene, additional, Ade, Peter A. R., additional, Aiola, Simone, additional, Alford, Tommy, additional, Amiri, Mandana, additional, Amodeo, Stefania, additional, An, Rui, additional, Atkins, Zachary, additional, Austermann, Jason E., additional, Battaglia, Nicholas, additional, Battistelli, Elia Stefano, additional, Beall, James A., additional, Bean, Rachel, additional, Beringue, Benjamin, additional, Bhandarkar, Tanay, additional, Biermann, Emily, additional, Bolliet, Boris, additional, Bond, J. Richard, additional, Cai, Hongbo, additional, Calabrese, Erminia, additional, Calafut, Victoria, additional, Capalbo, Valentina, additional, Carrero, Felipe, additional, Chesmore, Grace E., additional, Cho, Hsiao-mei, additional, Choi, Steve K., additional, Clark, Susan E., additional, Rosado, Rodrigo Córdova, additional, Cothard, Nicholas F., additional, Coughlin, Kevin, additional, Crowley, Kevin T., additional, Devlin, Mark J., additional, Dicker, Simon, additional, Doze, Peter, additional, Duell, Cody J., additional, Duff, Shannon M., additional, Dunkley, Jo, additional, Dünner, Rolando, additional, Fanfani, Valentina, additional, Fankhanel, Max, additional, Farren, Gerrit, additional, Ferraro, Simone, additional, Freundt, Rodrigo, additional, Fuzia, Brittany, additional, Gallardo, Patricio A., additional, Garrido, Xavier, additional, Givans, Jahmour, additional, Gluscevic, Vera, additional, Golec, Joseph E., additional, Guan, Yilun, additional, Halpern, Mark, additional, Han, Dongwon, additional, Hasselfield, Matthew, additional, Healy, Erin, additional, Henderson, Shawn, additional, Hensley, Brandon, additional, Hervías-Caimapo, Carlos, additional, Hilton, Gene C., additional, Hilton, Matt, additional, Hincks, Adam D., additional, Hložek, Renée, additional, Ho, Shuay-Pwu Patty, additional, Huber, Zachary B., additional, Hubmayr, Johannes, additional, Huffenberger, Kevin M., additional, Hughes, John P., additional, Irwin, Kent, additional, Isopi, Giovanni, additional, Jense, Hidde T., additional, Keller, Ben, additional, Kim, Joshua, additional, Knowles, Kenda, additional, Koopman, Brian J., additional, Kosowsky, Arthur, additional, Kramer, Darby, additional, Kusiak, Aleksandra, additional, La Posta, Adrien, additional, Lakey, Victoria, additional, Lee, Eunseong, additional, Li, Zack, additional, Li, Yaqiong, additional, Limon, Michele, additional, Lokken, Martine, additional, Louis, Thibaut, additional, Lungu, Marius, additional, MacCrann, Niall, additional, MacInnis, Amanda, additional, Maldonado, Diego, additional, Maldonado, Felipe, additional, Mallaby-Kay, Maya, additional, Marques, Gabriela A., additional, van Marrewijk, Joshiwa, additional, McCarthy, Fiona, additional, McMahon, Jeff, additional, Mehta, Yogesh, additional, Menanteau, Felipe, additional, Moodley, Kavilan, additional, Morris, Thomas W., additional, Mroczkowski, Tony, additional, Naess, Sigurd, additional, Namikawa, Toshiya, additional, Nati, Federico, additional, Newburgh, Laura, additional, Nicola, Andrina, additional, Niemack, Michael D., additional, Nolta, Michael R., additional, Orlowski-Scherer, John, additional, Page, Lyman A., additional, Pandey, Shivam, additional, Partridge, Bruce, additional, Prince, Heather, additional, Puddu, Roberto, additional, Qu, Frank J., additional, Radiconi, Federico, additional, Robertson, Naomi, additional, Rojas, Felipe, additional, Sakuma, Tai, additional, Salatino, Maria, additional, Schaan, Emmanuel, additional, Schmitt, Benjamin L., additional, Sehgal, Neelima, additional, Shaikh, Shabbir, additional, Sherwin, Blake D., additional, Sierra, Carlos, additional, Sievers, Jon, additional, Sifón, Cristóbal, additional, Simon, Sara, additional, Sonka, Rita, additional, Spergel, David N., additional, Staggs, Suzanne T., additional, Storer, Emilie, additional, Switzer, Eric R., additional, Tampier, Niklas, additional, Thornton, Robert, additional, Trac, Hy, additional, Treu, Jesse, additional, Tucker, Carole, additional, Ullom, Joel, additional, Vale, Leila R., additional, Van Engelen, Alexander, additional, Van Lanen, Jeff, additional, Vargas, Cristian, additional, Vavagiakis, Eve M., additional, Wagoner, Kasey, additional, Wang, Yuhan, additional, Wenzl, Lukas, additional, Wollack, Edward J., additional, Xu, Zhilei, additional, Zago, Fernando, additional, and Zheng, Kaiwen, additional

Published
2024
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15. The Atacama Cosmology Telescope: DR6 Gravitational Lensing Map and Cosmological Parameters

Author

Madhavacheril, Mathew S., primary, Qu, Frank J., additional, Sherwin, Blake D., additional, MacCrann, Niall, additional, Li, Yaqiong, additional, Abril-Cabezas, Irene, additional, Ade, Peter A. R., additional, Aiola, Simone, additional, Alford, Tommy, additional, Amiri, Mandana, additional, Amodeo, Stefania, additional, An, Rui, additional, Atkins, Zachary, additional, Austermann, Jason E., additional, Battaglia, Nicholas, additional, Battistelli, Elia Stefano, additional, Beall, James A., additional, Bean, Rachel, additional, Beringue, Benjamin, additional, Bhandarkar, Tanay, additional, Biermann, Emily, additional, Bolliet, Boris, additional, Bond, J Richard, additional, Cai, Hongbo, additional, Calabrese, Erminia, additional, Calafut, Victoria, additional, Capalbo, Valentina, additional, Carrero, Felipe, additional, Challinor, Anthony, additional, Chesmore, Grace E., additional, Cho, Hsiao-mei, additional, Choi, Steve K., additional, Clark, Susan E., additional, Rosado, Rodrigo Córdova, additional, Cothard, Nicholas F., additional, Coughlin, Kevin, additional, Coulton, William, additional, Crowley, Kevin T., additional, Dalal, Roohi, additional, Darwish, Omar, additional, Devlin, Mark J., additional, Dicker, Simon, additional, Doze, Peter, additional, Duell, Cody J., additional, Duff, Shannon M., additional, Duivenvoorden, Adriaan J., additional, Dunkley, Jo, additional, Dünner, Rolando, additional, Fanfani, Valentina, additional, Fankhanel, Max, additional, Farren, Gerrit, additional, Ferraro, Simone, additional, Freundt, Rodrigo, additional, Fuzia, Brittany, additional, Gallardo, Patricio A., additional, Garrido, Xavier, additional, Givans, Jahmour, additional, Gluscevic, Vera, additional, Golec, Joseph E., additional, Guan, Yilun, additional, Hall, Kirsten R., additional, Halpern, Mark, additional, Han, Dongwon, additional, Harrison, Ian, additional, Hasselfield, Matthew, additional, Healy, Erin, additional, Henderson, Shawn, additional, Hensley, Brandon, additional, Hervías-Caimapo, Carlos, additional, Hill, J. Colin, additional, Hilton, Gene C., additional, Hilton, Matt, additional, Hincks, Adam D., additional, Hložek, Renée, additional, Ho, Shuay-Pwu Patty, additional, Huber, Zachary B., additional, Hubmayr, Johannes, additional, Huffenberger, Kevin M., additional, Hughes, John P., additional, Irwin, Kent, additional, Isopi, Giovanni, additional, Jense, Hidde T., additional, Keller, Ben, additional, Kim, Joshua, additional, Knowles, Kenda, additional, Koopman, Brian J., additional, Kosowsky, Arthur, additional, Kramer, Darby, additional, Kusiak, Aleksandra, additional, La Posta, Adrien, additional, Lague, Alex, additional, Lakey, Victoria, additional, Lee, Eunseong, additional, Li, Zack, additional, Limon, Michele, additional, Lokken, Martine, additional, Louis, Thibaut, additional, Lungu, Marius, additional, MacInnis, Amanda, additional, Maldonado, Diego, additional, Maldonado, Felipe, additional, Mallaby-Kay, Maya, additional, Marques, Gabriela A., additional, McMahon, Jeff, additional, Mehta, Yogesh, additional, Menanteau, Felipe, additional, Moodley, Kavilan, additional, Morris, Thomas W., additional, Mroczkowski, Tony, additional, Naess, Sigurd, additional, Namikawa, Toshiya, additional, Nati, Federico, additional, Newburgh, Laura, additional, Nicola, Andrina, additional, Niemack, Michael D., additional, Nolta, Michael R., additional, Orlowski-Scherer, John, additional, Page, Lyman A., additional, Pandey, Shivam, additional, Partridge, Bruce, additional, Prince, Heather, additional, Puddu, Roberto, additional, Radiconi, Federico, additional, Robertson, Naomi, additional, Rojas, Felipe, additional, Sakuma, Tai, additional, Salatino, Maria, additional, Schaan, Emmanuel, additional, Schmitt, Benjamin L., additional, Sehgal, Neelima, additional, Shaikh, Shabbir, additional, Sierra, Carlos, additional, Sievers, Jon, additional, Sifón, Cristóbal, additional, Simon, Sara, additional, Sonka, Rita, additional, Spergel, David N., additional, Staggs, Suzanne T., additional, Storer, Emilie, additional, Switzer, Eric R., additional, Tampier, Niklas, additional, Thornton, Robert, additional, Trac, Hy, additional, Treu, Jesse, additional, Tucker, Carole, additional, Ullom, Joel, additional, Vale, Leila R., additional, Van Engelen, Alexander, additional, Van Lanen, Jeff, additional, van Marrewijk, Joshiwa, additional, Vargas, Cristian, additional, Vavagiakis, Eve M., additional, Wagoner, Kasey, additional, Wang, Yuhan, additional, Wenzl, Lukas, additional, Wollack, Edward J., additional, Xu, Zhilei, additional, Zago, Fernando, additional, and Zheng, Kaiwen, additional

Published
2024
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16. The Atacama Cosmology Telescope: A Measurement of the DR6 CMB Lensing Power Spectrum and Its Implications for Structure Growth

Author

Qu, Frank J., primary, Sherwin, Blake D., additional, Madhavacheril, Mathew S., additional, Han, Dongwon, additional, Crowley, Kevin T., additional, Abril-Cabezas, Irene, additional, Ade, Peter A. R., additional, Aiola, Simone, additional, Alford, Tommy, additional, Amiri, Mandana, additional, Amodeo, Stefania, additional, An, Rui, additional, Atkins, Zachary, additional, Austermann, Jason E., additional, Battaglia, Nicholas, additional, Battistelli, Elia Stefano, additional, Beall, James A., additional, Bean, Rachel, additional, Beringue, Benjamin, additional, Bhandarkar, Tanay, additional, Biermann, Emily, additional, Bolliet, Boris, additional, Bond, J Richard, additional, Cai, Hongbo, additional, Calabrese, Erminia, additional, Calafut, Victoria, additional, Capalbo, Valentina, additional, Carrero, Felipe, additional, Carron, Julien, additional, Challinor, Anthony, additional, Chesmore, Grace E., additional, Cho, Hsiao-mei, additional, Choi, Steve K., additional, Clark, Susan E., additional, Rosado, Rodrigo Córdova, additional, Cothard, Nicholas F., additional, Coughlin, Kevin, additional, Coulton, William, additional, Dalal, Roohi, additional, Darwish, Omar, additional, Devlin, Mark J., additional, Dicker, Simon, additional, Doze, Peter, additional, Duell, Cody J., additional, Duff, Shannon M., additional, Duivenvoorden, Adriaan J., additional, Dunkley, Jo, additional, Dünner, Rolando, additional, Fanfani, Valentina, additional, Fankhanel, Max, additional, Farren, Gerrit, additional, Ferraro, Simone, additional, Freundt, Rodrigo, additional, Fuzia, Brittany, additional, Gallardo, Patricio A., additional, Garrido, Xavier, additional, Gluscevic, Vera, additional, Golec, Joseph E., additional, Guan, Yilun, additional, Halpern, Mark, additional, Harrison, Ian, additional, Hasselfield, Matthew, additional, Healy, Erin, additional, Henderson, Shawn, additional, Hensley, Brandon, additional, Hervías-Caimapo, Carlos, additional, Hill, J. Colin, additional, Hilton, Gene C., additional, Hilton, Matt, additional, Hincks, Adam D., additional, Hložek, Renée, additional, Ho, Shuay-Pwu Patty, additional, Huber, Zachary B., additional, Hubmayr, Johannes, additional, Huffenberger, Kevin M., additional, Hughes, John P., additional, Irwin, Kent, additional, Isopi, Giovanni, additional, Jense, Hidde T., additional, Keller, Ben, additional, Kim, Joshua, additional, Knowles, Kenda, additional, Koopman, Brian J., additional, Kosowsky, Arthur, additional, Kramer, Darby, additional, Kusiak, Aleksandra, additional, La Posta, Adrien, additional, Lague, Alex, additional, Lakey, Victoria, additional, Lee, Eunseong, additional, Li, Zack, additional, Li, Yaqiong, additional, Limon, Michele, additional, Lokken, Martine, additional, Louis, Thibaut, additional, Lungu, Marius, additional, MacCrann, Niall, additional, MacInnis, Amanda, additional, Maldonado, Diego, additional, Maldonado, Felipe, additional, Mallaby-Kay, Maya, additional, Marques, Gabriela A., additional, McMahon, Jeff, additional, Mehta, Yogesh, additional, Menanteau, Felipe, additional, Moodley, Kavilan, additional, Morris, Thomas W., additional, Mroczkowski, Tony, additional, Naess, Sigurd, additional, Namikawa, Toshiya, additional, Nati, Federico, additional, Newburgh, Laura, additional, Nicola, Andrina, additional, Niemack, Michael D., additional, Nolta, Michael R., additional, Orlowski-Scherer, John, additional, Page, Lyman A., additional, Pandey, Shivam, additional, Partridge, Bruce, additional, Prince, Heather, additional, Puddu, Roberto, additional, Radiconi, Federico, additional, Robertson, Naomi, additional, Rojas, Felipe, additional, Sakuma, Tai, additional, Salatino, Maria, additional, Schaan, Emmanuel, additional, Schmitt, Benjamin L., additional, Sehgal, Neelima, additional, Shaikh, Shabbir, additional, Sierra, Carlos, additional, Sievers, Jon, additional, Sifón, Cristóbal, additional, Simon, Sara, additional, Sonka, Rita, additional, Spergel, David N., additional, Staggs, Suzanne T., additional, Storer, Emilie, additional, Switzer, Eric R., additional, Tampier, Niklas, additional, Thornton, Robert, additional, Trac, Hy, additional, Treu, Jesse, additional, Tucker, Carole, additional, Ullom, Joel, additional, Vale, Leila R., additional, Van Engelen, Alexander, additional, Van Lanen, Jeff, additional, van Marrewijk, Joshiwa, additional, Vargas, Cristian, additional, Vavagiakis, Eve M., additional, Wagoner, Kasey, additional, Wang, Yuhan, additional, Wenzl, Lukas, additional, Wollack, Edward J., additional, Xu, Zhilei, additional, Zago, Fernando, additional, and Zheng, Kaiwen, additional

Published
2024
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17. Rates and Determinants of Mother’s Own Milk Feeding in Infants Born Very Preterm

Author

Abenhaim, Haim, Afifi, Jehier, Alvaro, Ruben, Andrews, James, Armson, Anthony, Audibert, Francois, Aziz, Khalid, Ballantyne, Marilyn, Barrett, Jon, Beltempo, Marc, Berard, Anick, Bertelle, Valerie, Blais, Lucie, Bocking, Alan, Bodani, Jaya, Burrows, Jason, Butt, Kimberly, Canning, Roderick, Carson, George, Chaillet, Nils, Chandra, Sue, Church, Paige, Cieslak, Zenon, Coughlin, Kevin, Crane, Joan, Creighton, Dianne, Da Silva, Orlando, Daboval, Thierry, Dahlgren, Leanne, Daspal, Sibasis, de Cabo, Cecilia, Deshpandey, Akhil, Dow, Kimberly, Drolet, Christine, Dunn, Michael, el Helou, Salhab, El-Chaar, Darine, El-Naggar, Walid, Fajardo, Carlos, Foster, Jonathan, Gagnon, Robert, Gratton, Rob, Han, Victor, Harrison, Adele, Hasan, Shabih, Helewa, Michael, Hicks, Matthew, Joseph, K.S., Kajetanowicz, Andrzej, Kalapesi, Zarin, Khairy, May, Lacaze-Masmonteil, Thierry, Lee, Kyong-Soon, Lemyre, Brigitte, Lodha, Abhay, Louis, Deepak, Mai Luu, Thuy, Ly, Linh, Majnemer, Annette, Makary, Hala, Marc, Isabelle, Masse, Edith, McDonald, Sarah D., McMillan, Doug, Melamed, Nir, Metcalfe, Amy, Moddemann, Diane, Monterrosa, Luis, Morais, Michelle, Mukerji, Amit, Mundle, William, Murphy, Lynn, Murphy, Kellie, Nuyt, Anne-Monique, Nwaesei, Chuks, O’Brien, Karel, Offringa, Martin, Ojah, Cecil, Ouellet, Annie, Pasquier, Jean-Charles, Pechlivanoglou, Petros, Pelausa, Ermelinda, Piedboeuf, Bruno, Portales-Casamar, Elodie, Premji, Shahirose, Puligandla, Pramod, Pullenayegum, Eleanor, Reichert, Amber, Schneider, Carol, Seshia, Mary, Shah, Prakesh S., Shah, Vibhuti, Sherlock, Rebecca, Shivananda, Sandesh, Singhal, Nalini, Skarsgard, Erik, Skoll, Amanda, Smith, Graeme, Synnes, Anne, Thériault, Katherine, Ting, Joseph, Tough, Suzanne, Toye, Jennifer, Ubhi, Jagdeep, Vincer, Michael, Whittle, Wendy, Whyte, Hilary, Wilson, Doug, Wood, Stephen, Ye, Philip, Yee, Wendy, Zwicker, Jill, Dharel, Dinesh, Wood, Christel, Bacchini, Fabiana, Ye, Xiang Y., and Alshaikh, Belal

Published
2021
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18. Optical modeling and polarization calibration for CMB measurements with ACTPol and Advanced ACTPol

Author

Koopman, Brian, Austermann, Jason, Cho, Hsiao-Mei, Coughlin, Kevin P., Duff, Shannon M., Gallardo, Patricio A., Hasselfield, Matthew, Henderson, Shawn W., Ho, Shuay-Pwu Patty, Hubmayr, Johannes, Irwin, Kent D., Li, Dale, McMahon, Jeff, Nati, Federico, Niemack, Michael D., Newburgh, Laura, Page, Lyman A., Salatino, Maria, Schillaci, Alessandro, Schmitt, Benjamin L., Simon, Sara M., Vavagiakis, Eve M., Ward, Jonathan T., and Wollack, Edward J.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The Atacama Cosmology Telescope Polarimeter (ACTPol) is a polarization sensitive upgrade to the Atacama Cosmology Telescope. Located at an elevation of 5190 m, ACTPol measures the Cosmic Microwave Background (CMB) temperature and polarization with arcminute-scale angular resolution. Calibration of the detector angles is a critical step in producing maps of the CMB polarization. Polarization angle offsets in the detector calibration can cause leakage in polarization from E to B modes and induce a spurious signal in the EB and TB cross correlations, which eliminates our ability to measure potential cosmological sources of EB and TB signals, such as cosmic birefringence. We present our optical modeling and measurements associated with calibrating the detector angles in ACTPol., Comment: 12 pages, 8 figures, conference proceedings submitted to Proceedings of SPIE; added reference in section 2 and merged repeated reference

Published
2016
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19. The Atacama Cosmology Telescope: two-season ACTPol spectra and parameters

Author

Louis, Thibaut, Grace, Emily, Hasselfield, Matthew, Lungu, Marius, Maurin, Loïc, Addison, Graeme E, Ade, Peter AR, Aiola, Simone, Allison, Rupert, Amiri, Mandana, Angile, Elio, Battaglia, Nicholas, Beall, James A, de Bernardis, Francesco, Bond, J Richard, Britton, Joe, Calabrese, Erminia, Cho, Hsiao-mei, Choi, Steve K, Coughlin, Kevin, Crichton, Devin, Crowley, Kevin, Datta, Rahul, Devlin, Mark J, Dicker, Simon R, Dunkley, Joanna, Dünner, Rolando, Ferraro, Simone, Fox, Anna E, Gallardo, Patricio, Gralla, Megan, Halpern, Mark, Henderson, Shawn, Hill, J Colin, Hilton, Gene C, Hilton, Matt, Hincks, Adam D, Hlozek, Renée, Ho, SP Patty, Huang, Zhiqi, Hubmayr, Johannes, Huffenberger, Kevin M, Hughes, John P, Infante, Leopoldo, Irwin, Kent, Kasanda, Simon Muya, Klein, Jeff, Koopman, Brian, Kosowsky, Arthur, Li, Dale, Madhavacheril, Mathew, Marriage, Tobias A, McMahon, Jeff, Menanteau, Felipe, Moodley, Kavilan, Munson, Charles, Naess, Sigurd, Nati, Federico, Newburgh, Laura, Nibarger, John, Niemack, Michael D, Nolta, Michael R, Nuñez, Carolina, Page, Lyman A, Pappas, Christine, Partridge, Bruce, Rojas, Felipe, Schaan, Emmanuel, Schmitt, Benjamin L, Sehgal, Neelima, Sherwin, Blake D, Sievers, Jon, Simon, Sara, Spergel, David N, Staggs, Suzanne T, Switzer, Eric R, Thornton, Robert, Trac, Hy, Treu, Jesse, Tucker, Carole, Van Engelen, Alexander, Ward, Jonathan T, and Wollack, Edward J

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, CMBR experiments, CMBR polarisation, cosmological parameters from CMBR, astro-ph.CO, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics, Astronomical sciences, Particle and high energy physics
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 deg2 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 ΛCDM 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. The new ACTPol data provide information on damping tail parameters. The joint uncertainty on the number of neutrino species and the primordial helium fraction is reduced by 20% when adding ACTPol to Planck temperature data alone.

Published
2017

20. The Atacama Cosmology Telescope: Lensing of CMB Temperature and Polarization Derived from Cosmic Infrared Background Cross-Correlation

Author

van Engelen, Alexander, Sherwin, Blake D., Sehgal, Neelima, Addison, Graeme E., Allison, Rupert, Battaglia, Nick, de Bernardis, Francesco, Calabrese, Erminia, Coughlin, Kevin, Crichton, Devin, Bond, J. Richard, Datta, Rahul, Dunner, Rolando, Dunkley, Joanna, Grace, Emily, Gralla, Megan, Hajian, Amir, Hasselfield, Matthew, Henderson, Shawn, Hill, J. Colin, Hilton, Matt, Hincks, Adam D., Hlozek, Renée, Huffenberger, Kevin M., Hughes, John P., Koopman, Brian, Kosowsky, Arthur, Louis, Thibaut, Lungu, Marius, Madhavacheril, Mathew, Maurin, Loic, McMahon, Jeff, Moodley, Kavilan, Munson, Charles, Naess, Sigurd, Nati, Federico, Newburgh, Laura, Niemack, Michael D., Nolta, Mike, Page, Lyman A., Partridge, Bruce, Pappas, Christine, Schmitt, Benjamin L., Sievers, Jonathan L., Simon, Sara, Spergel, David N., Staggs, Suzanne T., Switzer, Eric R., Ward, Jonathan T., and Wollack, Edward J.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present a measurement of the gravitational lensing of the Cosmic Microwave Background (CMB) temperature and polarization fields obtained by cross-correlating the reconstructed convergence signal from the first season of ACTPol data at 146 GHz with Cosmic Infrared Background (CIB) fluctuations measured using the Planck satellite. Using an overlap area of 206 square degrees, we detect gravitational lensing of the CMB polarization by large-scale structure at a statistical significance of 4.5 sigma. Combining both CMB temperature and polarization data gives a lensing detection at 9.1 sigma significance. A B-mode polarization lensing signal is present with a significance of 3.2 sigma. We also present the first measurement of CMB lensing--CIB correlation at small scales corresponding to l > 2000. Null tests and systematic checks show that our results are not significantly biased by astrophysical or instrumental systematic effects, including Galactic dust. Fitting our measurements to the best-fit lensing-CIB cross power spectrum measured in Planck data, scaled by an amplitude A, gives A=1.02 +0.12/-0.18 (stat.) +/-0.06(syst.), consistent with the Planck results., Comment: Submitted to ApJ

Published
2014
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21. Evidence of Lensing of the Cosmic Microwave Background by Dark Matter Halos

Author

Madhavacheril, Mathew, Sehgal, Neelima, Allison, Rupert, Battaglia, Nick, Bond, J Richard, Calabrese, Erminia, Caligiuri, Jerod, Coughlin, Kevin, Crichton, Devin, Datta, Rahul, Devlin, Mark J., Dunkley, Joanna, Dünner, Rolando, Fogarty, Kevin, Grace, Emily, Hajian, Amir, Hasselfield, Matthew, Hill, J. Colin, Hilton, Matt, Hincks, Adam D., Hlozek, Renée, Hughes, John P., Kosowsky, Arthur, Louis, Thibaut, Lungu, Marius, McMahon, Jeff, Moodley, Kavilan, Munson, Charles, Naess, Sigurd, Nati, Federico, Newburgh, Laura, Niemack, Michael D., Page, Lyman A., Partridge, Bruce, Schmitt, Benjamin, Sherwin, Blake D., Sievers, Jon, Spergel, David N., Staggs, Suzanne T., Thornton, Robert, Van Engelen, Alexander, Ward, Jonathan T., and Wollack, Edward J.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present evidence of the gravitational lensing of the cosmic microwave background by $10^{13}$ solar mass dark matter halos. Lensing convergence maps from the Atacama Cosmology Telescope Polarimeter (ACTPol) are stacked at the positions of around 12,000 optically-selected CMASS galaxies from the SDSS-III/BOSS survey. The mean lensing signal is consistent with simulated dark matter halo profiles, and is favored over a null signal at 3.2 sigma significance. This result demonstrates the potential of microwave background lensing to probe the dark matter distribution in galaxy group and galaxy cluster halos., Comment: 9 pages, 3 figures, accepted by PRL, author list corrected

Published
2014
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23. Neonatal and Early Childhood Outcomes of Twin and Singleton Infants Born Preterm

Author

Melamed, Nir, primary, Weitzner, Omer, additional, Church, Paige, additional, Banihani, Rudaina, additional, Barrett, Jon, additional, Yang, Junmin, additional, Wong, Jonathan, additional, Piedboeuf, Bruno, additional, Shah, Prakesh S., additional, Beltempo, Marc, additional, Kanungo, Jaideep, additional, Stavel, Miroslav, additional, Sherlock, Rebecca, additional, Mehrem, Ayman Abou, additional, Toye, Jennifer, additional, Ting, Joseph, additional, Fajardo, Carlos, additional, Bodani, Jaya, additional, Strueby, Lannae, additional, Seshia, Mary, additional, Louis, Deepak, additional, Alvaro, Ruben, additional, Mukerji, Amit, additional, Da Silva, Orlando, additional, Augustine, Sajit, additional, Lee, Kyong-Soon, additional, Ng, Eugene, additional, Lemyre, Brigitte, additional, Daboval, Thierry, additional, Khurshid, Faiza, additional, Bizgu, Victoria, additional, Barrington, Keith, additional, Lapointe, Anie, additional, Ethier, Guillaume, additional, Drolet, Christine, additional, Claveau, Martine, additional, St-Hilaire, Marie, additional, Bertelle, Valerie, additional, Masse, Edith, additional, Mehdizadeh-Hakak, Hamid, additional, Makary, Hala, additional, Ojah, Cecil, additional, Hudson, Jo-Anna, additional, Afifi, Jehier, additional, Aslam, Ameer, additional, Lee, Shoo K., additional, Abenhaim, Haim, additional, Andrews, James, additional, Armson, Anthony, additional, Audibert, Francois, additional, Aziz, Khalid, additional, Ballantyne, Marilyn, additional, Berard, Anick, additional, Blais, Lucie, additional, Bocking, Alan, additional, Burrows, Jason, additional, Butt, Kimberly, additional, Canning, Roderick, additional, Carson, George, additional, Chaillet, Nils, additional, Chandra, Sue, additional, Cieslak, Zenon, additional, Coughlin, Kevin, additional, Crane, Joan, additional, Creighton, Dianne, additional, Dahlgren, Leanne, additional, Daspal, Sibasis, additional, de Cabo, Cecilia, additional, Deshpandey, Akhil, additional, Dow, Kimberly, additional, Dunn, Michael, additional, Helou, Salhab el, additional, El-Chaar, Darine, additional, El-Naggar, Walid, additional, Foster, Jonathan, additional, Gagnon, Robert, additional, Gratton, Rob, additional, Han, Victor, additional, Harrison, Adele, additional, Hasan, Shabih, additional, Helewa, Michael, additional, Hicks, Matthew, additional, Joseph, K.S., additional, Kajetanowicz, Andrzej, additional, Kalapesi, Zarin, additional, Khairy, May, additional, Lacaze-Masmonteil, Thierry, additional, Lodha, Abhay, additional, Luu, Thuy Mai, additional, Ly, Linh, additional, Majnemer, Annette, additional, Marc, Isabelle, additional, McDonald, Sarah D., additional, McMillan, Doug, additional, Melamed, Nir, additional, Metcalfe, Amy, additional, Moddemann, Diane, additional, Monterrosa, Luis, additional, Morais, Michelle, additional, Mundle, William, additional, Murphy, Lynn, additional, Murphy, Kellie, additional, Nuyt, Anne-Monique, additional, Nwaesei, Chuks, additional, O'Brien, Karel, additional, Offringa, Martin, additional, Ouellet, Annie, additional, Pasquier, Jean-Charles, additional, Pechlivanoglou, Petros, additional, Pelausa, Ermelinda, additional, Portales-Casamar, Elodie, additional, Premji, Shahirose, additional, Puligandla, Pramod, additional, Pullenayegum, Eleanor, additional, Reichert, Amber, additional, Robson, Kate, additional, Schneider, Carol, additional, Shah, Vibhuti, additional, Shivananda, Sandesh, additional, Singhal, Nalini, additional, Skarsgard, Erik, additional, Skoll, Amanda, additional, Smith, Graeme, additional, Synnes, Anne, additional, Thériault, Katherine, additional, Tough, Suzanne, additional, Ubhi, Jagdeep, additional, Vincer, Michael, additional, Whittle, Wendy, additional, Whyte, Hilary, additional, Wilson, Doug, additional, Wood, Stephen, additional, Ye, Philip, additional, Yee, Wendy, additional, Zwicker, Jill, additional, Pillay, Thevanisha, additional, Synnes’, Anne, additional, Colby, Lindsay, additional, Anson, Shelagh, additional, Moodley, Anitha, additional, Hendson, Leonora, additional, Ricci, M. Florencia, additional, McKnight, Sarah, additional, Kelly, Edmond, additional, Raghuram, Kamini, additional, Thomas, Karen, additional, Nguyen, Kim-Anh, additional, Mandel, Ruth, additional, Morin, Alyssa, additional, and Bélanger, Sylvie, additional

Published
2023
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24. The Atacama Cosmology Telescope: CMB Polarization at $200<\ell<9000$

Author

Naess, Sigurd, Hasselfield, Matthew, McMahon, Jeff, Niemack, Michael D., Addison, Graeme E., Ade, Peter A. R., Allison, Rupert, Amiri, Mandana, Battaglia, Nick, Beall, James A., de Bernardis, Francesco, Bond, J Richard, Britton, Joe, Calabrese, Erminia, Cho, Hsiao-mei, Coughlin, Kevin, Crichton, Devin, Das, Sudeep, Datta, Rahul, Devlin, Mark J., Dicker, Simon R., Dunkley, Joanna, Dünner, Rolando, Fowler, Joseph W., Fox, Anna E., Gallardo, Patricio, Grace, Emily, Gralla, Megan, Hajian, Amir, Halpern, Mark, Henderson, Shawn, Hill, J. Colin, Hilton, Gene C., Hilton, Matt, Hincks, Adam D., Hlozek, Renée, Ho, Patty, Hubmayr, Johannes, Huffenberger, Kevin M., Hughes, John P., Infante, Leopoldo, Irwin, Kent, Jackson, Rebecca, Kasanda, Simon Muya, Klein, Jeff, Koopman, Brian, Kosowsky, Arthur, Li, Dale, Louis, Thibaut, Lungu, Marius, Madhavacheril, Mathew, Marriage, Tobias A., Maurin, Loïc, Menanteau, Felipe, Moodley, Kavilan, Munson, Charles, Newburgh, Laura, Nibarger, John, Nolta, Michael R., Page, Lyman A., Pappas, Christine, Partridge, Bruce, Rojas, Felipe, Schmitt, Benjamin, Sehgal, Neelima, Sherwin, Blake D., Sievers, Jon, Simon, Sara, Spergel, David N., Staggs, Suzanne T., Switzer, Eric R., Thornton, Robert, Trac, Hy, Tucker, Carole, Uehara, Masao, Van Engelen, Alexander, Ward, Jon, and Wollack, Edward J.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We report on measurements of the cosmic microwave background (CMB) and celestial polarization at 146 GHz made with the Atacama Cosmology Telescope Polarimeter (ACTPol) in its first three months of observing. Four regions of sky covering a total of 270 square degrees were mapped with an angular resolution of $1.3'$. The map noise levels in the four regions are between 11 and 17 $\mu$K-arcmin. We present TT, TE, EE, TB, EB, and BB power spectra from three of these regions. The observed E-mode polarization power spectrum, displaying six acoustic peaks in the range $200<\ell<3000$, is an excellent fit to the prediction of the best-fit cosmological models from WMAP9+ACT and Planck data. The polarization power spectrum, which mainly reflects primordial plasma velocity perturbations, provides an independent determination of cosmological parameters consistent with those based on the temperature power spectrum, which results mostly from primordial density perturbations. We find that without masking any point sources in the EE data at $\ell<9000$, the Poisson tail of the EE power spectrum due to polarized point sources has an amplitude less than $2.4$ $\mu$K$^2$ at $\ell = 3000$ at 95\% confidence. Finally, we report that the Crab Nebula, an important polarization calibration source at microwave frequencies, has 8.7\% polarization with an angle of $150.7^\circ \pm 0.6^\circ$ when smoothed with a $5'$ Gaussian beam., Comment: 16 pages, 15 figures, 5 tables

Published
2014
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27. Extensive cardiopulmonary resuscitation of preterm neonates at birth and mortality and developmental outcomes

Author

Shah, Prakesh S, Kanungo, Jaideep, Ting, Joseph, Yee, Wendy, Toye, Jennifer, Fajardo, Carlos, Kalapesi, Zarin, Sankaran, Koravangattu, Daspal, Sibasis, Seshia, Mary, Alvaro, Ruben, Mukerji, Amit, Da Silva, Orlando, Nwaesei, Chuks, Lee, Kyong-Soon, Dunn, Michael, Lemyre, Brigitte, Dow, Kimberly, Pelausa, Ermelinda, Lapoint, Anie, Drolet, Christine, Piedboeuf, Bruno, Claveau, Martine, Beltempo, Marc, Bertelle, Valerie, Masse, Edith, Canning, Roderick, Makary, Hala, Ojah, Cecil, Monterrosa, Luis, Emberley, Julie, Afifi, Jehier, Kajetanowicz, Andrzej, Lee, Shoo K, Canadian Neonatal Follow-Up Network (CNFUN) Investigators, Pillay, Thevanisha, Synnes, Anne, Sauvé, Reg, Hendson, Leonora, Reichert, Amber, Bodani, Jaya, Moddemann, Diane, Daboval, Thierry, Lee, David, Coughlin, Kevin, Ly, Linh, Kelly, Edmond, Saigal, Saroj, Church, Paige, Riley, Patricia, Luu, Thuy Mai, Lefebvre, Francine, Demers, Charlotte, Bélanger, Sylvie, Vincer, Michael, Murphy, Phil, Fischer, Nicole, Soraisham, Amuchou, Shah, Prakesh S., Rabi, Yacov, Singhal, Nalini, Ting, Joseph Y., Creighton, Dianne, Dewey, Deborah, Ballantyne, Marilyn, and Lodha, Abhay

Published
2019
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30. Parent-Integrated Interventions to Improve Language Development in Children Born Very Preterm

Author

Synnes, Anne, primary, Luu, Thuy Mai, additional, Afifi, Jehier, additional, Khairy, May, additional, de Cabo, Cecilia, additional, Moddemann, Diane, additional, Hendson, Leonora, additional, Reichert, Amber, additional, Coughlin, Kevin, additional, Nguyen, Kim Anh, additional, Richter, Lindsay L., additional, Bacchini, Fabiana, additional, and Aziz, Khalid, additional

Published
2023
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35. Astro2020 APC White Paper Project: The Simons Observatory

Author

Abitbol, Maximilian H, Adachi, Shunsuke, Ade, Peter, Aguirre, James, Ahmed, Zeeshan, Aiola, Simone, Ali, Aamir, Alonso, David, Alvarez, Marcelo A, Arnold, Kam, Ashton, Peter, Atkins, Zachary, Austermann, Jason, Awan, Humna, Baccigalupi, Carlo, Baildon, Taylor, Lizancos, Anton Baleato, Barron, Darcy, Battaglia, Nick, Battye, Richard, Baxter, Eric, Bazarko, Andrew, Beall, James A, Bean, Rachel, Beck, Dominic, Beckman, Shawn, Beringue, Benjamin, Bhandarkar, Tanay, Bhimani, Sanah, Bianchini, Federico, Boada, Steven, Boettger, David, Bolliet, Boris, Bond, J. Richard, Borrill, Julian, Brown, Michael L, Bruno, Sarah Marie, Bryan, Sean, Calabrese, Erminia, Calafut, Victoria, Calisse, Paolo, Carron, Julien, Carl, Fred. M, Cayuso, Juan, Challinor, Anthony, Chesmore, Grace, Chinone, Yuji, Chluba, Jens, Cho, Hsiao-Mei Sherry, Choi, Steve, Clark, Susan, Clarke, Philip, Contaldi, Carlo, Coppi, Gabriele, Cothard, Nicholas F, Coughlin, Kevin, Coulton, Will, Crichton, Devin, Crowley, Kevin D, Crowley, Kevin T, Cukierman, Ari, D’Ewart, John M, D¨unner, Rolando, Haan, Tijmen de, Devlin, Mark, Dicker, Simon, Dober, Bradley, Duell, Cody J, Duff, Shannon, Duivenvoorden, Adri, Dunkley, Jo, Bouhargani, Hamza El, Errard, Josquin, Fabbian, Giulio, Feeney, Stephen, Fergusson, James, Ferraro, Simone, Flux`a, Pedro, Freese, Katherine, Frisch, Josef C, Frolov, Andrei, Fuller, George, Galitzki, Nicholas, Gallardo, Patricio A, Ghersi, Jose Tomas Galvez, 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, Halpern, Mark, Han, Dongwon, Hargrave, Peter, Harrington, Kathleen, Hasegawa, Masaya, Hasselfield, Matthew, Hattori, Makoto, Haynes, Victor, Hazumi, Masashi, Healy, Erin, Henderson, Shawn W, Hensley, Brandon, Hervias-Caimapo, Carlos, Hill, Charles A, Hill, J. Colin, Hilton, Gene, Hilton, Matt, Hincks, Adam D, Hinshaw, Gary, Hlozek, Renee, Ho, Shirley, Ho, Shuay-Pwu Patty, Hoang, Thuong D, Hoh, Jonathan, Hotinli, Selim C, Huang, Zhiqi, Hubmayr, Johannes, Huffenberger, Kevin, Hughes, John P, Ijjas, Anna, Ikape, Margaret, Irwin, Kent, Jaffe, Andrew H, Jain, Bhuvnesh, Jeong, Oliver, Johnson, Matthew, Kaneko, Daisuke, Karpel, Ethan D, Katayama, Nobuhiko, Keating, Brian, Keskitalo, Reijo, Kisner, Theodore, Kiuchi, Kenji, Klein, Jeff, Knowles, Kenda, Kofman, Anna, Koopman, Brian, Kosowsky, Arthur, Krachmalnicoff, Nicoletta, Kusaka, Akito, LaPlante, Phil, Lashner, Jacob, Lee, Adrian, Lee, Eunseong, Lewis, Antony, Li, Yaqiong, Li, Zack, Limon, Michele, Linder, Eric, Liu, Jia, Lopez-Caraballo, Carlos, Louis, Thibaut, Lungu, Marius, Madhavacheril, Mathew, Mak, Daisy, Maldonado, Felipe, Mani, Hamdi, Mates, Ben, Matsuda, Frederick, Maurin, Loıc, Mauskopf, Phil, May, Andrew, McCallum, Nialh, McCarrick, Heather, McKenney, Chris, McMahon, Jeff, Meerburg, P. Daniel, Mertens, James, Meyers, Joel, Miller, Amber, Mirmelstein, Mark, Moodley, Kavilan, Moore, Jenna, Munchmeyer, Moritz, Munson, Charles, Murata, Masaaki, Naess, Sigurd, Namikawa, Toshiya, Nati, Federico, Navaroli, Martin, Newburgh, Laura, Nguyen, Ho Nam, Nicola, Andrina, Niemack, Mike, Nishino, Haruki, Nishinomiya, Yume, Orlowski-Scherer, John, Pagano, Luca, Partridge, Bruce, Perrotta, Francesca, Phakathi, Phumlani, Piccirillo, Lucio, Pierpaoli, Elena, Pisano, Giampaolo, Poletti, Davide, Puddu, Roberto, Puglisi, Giuseppe, Raum, Chris, Reichardt, Christian L, Remazeilles, Mathieu, Rephaeli, Yoel, Riechers, Dominik, Rojas, Felipe, Rotti, Aditya, Roy, Anirban, Sadeh, Sharon, Sakurai, Yuki, Salatino, Maria, Rao, Mayuri Sathyanarayana, Saunders, Lauren, Schaan, Emmanuel, Schmittfull, Marcel, Sehgal, Neelima, Seibert, Joseph, Seljak, Uros, Shellard, Paul, Sherwin, Blake, Shimon, Meir, Sierra, Carlos, Sievers, Jonathan, Sifon, Cristobal, Sikhosana, Precious, Silva-Feaver, Maximiliano, Simon, Sara M, Sinclair, Adrian, Smith, Kendrick, Sohn, Wuhyun, Sonka, Rita, Spergel, David, Spisak, Jacob, Staggs, Suzanne T, Stein, George, Stevens, Jason R, Stompor, Radek, Suzuki, Aritoki, Tajima, Osamu, Takakura, Satoru, Teply, Grant, Thomas, Daniel B, Thorne, Ben, Thornton, Robert, Trac, Hy, Treu, Jesse, Tsai, Calvin, Tucker, Carole, Ullom, Joel, Vagnozzi, Sunny, Engelen, Alexander van, Lanen, Jeff Van, Winkle, Daniel D. Van, Vavagiakis, Eve M, Verg`es, Clara, Vissers, Michael, Wagoner, Kasey, Walker, Samantha, Wang, Yuhan, Ward, Jon, Westbrook, Ben, Whitehorn, Nathan, Williams, Jason, Williams, Joel, Wollack, Edward, Xu, Zhilei, Yasini, Siavash, Young, Edward, Yu, Byeonghee, Yu, Cyndia, Zago, Fernando, Zannoni, Mario, Zhang, Hezi, Zheng, Kaiwen, Zhu, Ningfeng, and Zonca, Andrea

Subjects
Astrophysics
Abstract

The Simons Observatory (SO) is a ground-based cosmic microwave background (CMB) experiment sited on Cerro Toco in the Atacama Desert in Chile that promises to provide breakthrough discoveries in fundamental physics, cosmology, and astrophysics. Supported by the Simons Foundation, the Heising-Simons Foundation, and with contributions from collaborating institutions, SO will see first light in 2021 and start a five year survey in 2022. SO has 287 collaborators from 12 countries and 53 institutions, including 85 students and 90 postdocs. The SO experiment in its currently funded form (‘SO-Nominal’) consists of three 0.4 m Small Aperture Telescopes (SATs) and one 6 m Large Aperture Telescope (LAT). Optimized for minimizing systematic errors in polarization measurements at large angular scales, the SATs will perform a deep, degree-scale survey of 10% of the sky to search for the signature of primordial gravitational waves. The LAT will survey 40% of the sky with arc-minute resolution. These observations will measure (or limit) the sum of neutrino masses, search for light relics, measure the early behavior of Dark Energy, and refine our understanding of the intergalactic medium, clusters and the role of feedback in galaxy formation. With up to ten times the sensitivity and five times the angular resolution of the Planck satellite, and roughly an order of magnitude increase in mapping speed over currently operating (“Stage 3”) experiments, SO will measure the CMB temperature and polarization fluctuations to exquisite precision in six frequency bands from 27 to 280 GHz. SO will rapidly advance CMB science while informing the design of future observatories such as CMB-S4. Construction of SO-Nominal is fully funded, and operations and data analysis are funded for part of the planned five-year observations. We will seek federal funding to complete the observations and analysis of SO-Nominal, at the $25M level. The SO has a low risk and cost efficient upgrade path – the 6 m LAT can accommodate almost twice the baseline number of detectors and the SATs can be duplicated at low cost. We will seek funding at the $75M level for an expansion of the SO (‘SO-Enhanced’) that fills the remaining focal plane in the LAT, adds three SATs, and extends operations by five years, substantially improving our science return. By this time SO may be operating as part of the larger CMB-S4 project. This white paper summarizes and extends material presented in, which describes the science goals of SO-Nominal, and which describe the instrument design.

Published
2019

38. An Analysis of Factor Extraction Strategies: A Comparison of the Relative Strengths of Principal Axis, Ordinary Least Squares, and Maximum Likelihood in Research Contexts That Include Both Categorical and Continuous Variables

Author

Coughlin, Kevin B.

Abstract

This study is intended to provide researchers with empirically derived guidelines for conducting factor analytic studies in research contexts that include dichotomous and continuous levels of measurement. This study is based on the hypotheses that ordinary least squares (OLS) factor analysis will yield more accurate parameter estimates than maximum likelihood (ML) and principal axis factor anlaysis (PAF); the level of improvement in estimates will be related to the proportion of observed variables that are dichotomized and the strength of communalities within the data sets. To achieve this study's objective, maximum likelihood, ordinary least squares, and principal axis factor extraction models were subjected to various research contexts. A Monte Carlo method was used to simulate data under 540 different conditions; specifically, this study is a four (sample size) by three (number of variables) by three (initial communality levels) by three (number of common factors) by five (ratios of categorical to continuous variables) design. Factor loading matrices derived through the tested factor extraction methods were evaluated through four measures of factor pattern agreement and three measures of congruence. To varying degrees, all of the design factors, as main effects, yielded significant differences in measures of factor loading sensitivity, agreement between sample and population, and congruence. However, in all cases, the main effects were components of interactions that yielded differences in values of these measures that were at least medium in effect size. The number of factors imbedded in the population was a component in six interactions that resulted in medium effect size differences in measures of agreement between population and sample factor loading matrices. of factor loading sensitivity, general pattern agreement, per element agreement, congruence, factor score correlations, and factor loading bias; in terms of the number of interactions that yielded at least medium effect size differences in measures of sensitivity, agreement, and congruence. The number of factors design factor exerted a larger influence than any of the other design factors. The level of communality interacted with the number of factors, number of observed variables, and sample size main effects to yield at least medium effect size differences in factor loading sensitivity, general pattern agreement, per element agreement, congruence, factor score correlations, factor loading bias, and RMSE; in terms of the number of factors that included communality as a component, this design factor exerted the second largest amount of influence on the measures of sensitivity, agreement, and congruence. The level of dichotomization, sample size, and number of observed variables were included in smaller numbers of interactions; however, these interactions yielded differences in all of the outcome variables that were at least medium in effect size. Across the majority of interactions among the manipulated research contexts, the ordinary least squares factor extraction method yielded factor loading matrices that were in better agreement with the population than either the maximum likelihood or the principal axis methods. In three of the four measures of congruence, the ordinary least squares method yielded factor loading matrices that exhibited less bias and error than the other two tested factor extraction methods. In general, the ordinary least squares method yielded factor loading matrices that correlated more strongly with the population than either of the other two tested methods. The suggested use of ordinary least squares factor analytic techniques represents the major, empirically derived recommendation derived from the results of this study. In all tested conditions, the ordinary least squares factor extraction method identified common factors with a high degree of efficacy. Suggested studies for future would incorporate the limiting constraints associated with this dissertation into methodological studies to extend the generalizability of conclusions and recommendations into areas that are beyond the scope of this dissertation. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]

Published
2013

39. Canadian Guidelines for Controlled Pediatric Donation After Circulatory Determination of Death—Summary Report*

Author

Weiss, Matthew J., Hornby, Laura, Rochwerg, Bram, van Manen, Michael, Dhanani, ; Sonny, Sivarajan, V. Ben, Appleby, Amber, Bennett, Mary, Buchman, Daniel, Farrell, Catherine, Goldberg, Aviva, Greenberg, Rebecca, Singh, Ram, Nakagawa, Thomas A., Witteman, William, Barter, Jill, Beck, Allon, Coughlin, Kevin, Conradi, Alf, Cupido, Cynthia, Dawson, Rosanne, Dipchand, Anne, Freed, Darren, Hornby, Karen, Langlois, Valerie, Mack, Cheryl, Mahoney, Meagan, Manhas, Deepak, Tomlinson, Christopher, Zavalkoff, Samara, and Shemie, Sam D.

Published
2017
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44. The Design and Characterization of Wideband Spline-profiled Feedhorns for Advanced Actpol

Author

Simon, Sara M, Austermann, Jason, Beall, James A, Choi, Steve K, Coughlin, Kevin P, Duff, Shannon M, Gallardo, Patricio A, Henderson, Shawn W, Hills, Felicity B, Ho, Shuay-Pwu Patty, Hubmayr, Johannes, Josaitis, Alec, Koopman, Brian J, McMahon, Jeff J, Nati, Federico, Newburgh, Laura, Niemack, Michael D, Salatino, Maria, Schillaci, Alessandro, and Wollack, Edward J

Subjects
Instrumentation And Photography, Astrophysics
Abstract

Advanced ACTPol (AdvACT) is an upgraded camera for the Atacama Cosmology Telescope (ACT) that will measure the cosmic microwave background in temperature and polarization over a wide range of angular scales and five frequency bands from 28-230 GHz. AdvACT will employ four arrays of feedhorn-coupled, polarization- sensitive multichroic detectors. To accommodate the higher pixel packing densities necessary to achieve Ad- vACTs sensitivity goals, we have developed and optimized wideband spline-profiled feedhorns for the AdvACT multichroic arrays that maximize coupling efficiency while carefully controlling polarization systematics. We present the design, fabrication, and testing of wideband spline-profiled feedhorns for the multichroic arrays of AdvACT.

Published
2016
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45. Rates and Determinants of Mother’s Own Milk Feeding in Infants Born Very Preterm

Author

Dharel, Dinesh, primary, Singhal, Nalini, additional, Wood, Christel, additional, Cieslak, Zenon, additional, Bacchini, Fabiana, additional, Shah, Prakesh S., additional, Ye, Xiang Y., additional, Alshaikh, Belal, additional, Abenhaim, Haim, additional, Afifi, Jehier, additional, Alvaro, Ruben, additional, Andrews, James, additional, Armson, Anthony, additional, Audibert, Francois, additional, Aziz, Khalid, additional, Ballantyne, Marilyn, additional, Barrett, Jon, additional, Beltempo, Marc, additional, Berard, Anick, additional, Bertelle, Valerie, additional, Blais, Lucie, additional, Bocking, Alan, additional, Bodani, Jaya, additional, Burrows, Jason, additional, Butt, Kimberly, additional, Canning, Roderick, additional, Carson, George, additional, Chaillet, Nils, additional, Chandra, Sue, additional, Church, Paige, additional, Coughlin, Kevin, additional, Crane, Joan, additional, Creighton, Dianne, additional, Da Silva, Orlando, additional, Daboval, Thierry, additional, Dahlgren, Leanne, additional, Daspal, Sibasis, additional, de Cabo, Cecilia, additional, Deshpandey, Akhil, additional, Dow, Kimberly, additional, Drolet, Christine, additional, Dunn, Michael, additional, el Helou, Salhab, additional, El-Chaar, Darine, additional, El-Naggar, Walid, additional, Fajardo, Carlos, additional, Foster, Jonathan, additional, Gagnon, Robert, additional, Gratton, Rob, additional, Han, Victor, additional, Harrison, Adele, additional, Hasan, Shabih, additional, Helewa, Michael, additional, Hicks, Matthew, additional, Joseph, K.S., additional, Kajetanowicz, Andrzej, additional, Kalapesi, Zarin, additional, Khairy, May, additional, Lacaze-Masmonteil, Thierry, additional, Lee, Kyong-Soon, additional, Lemyre, Brigitte, additional, Lodha, Abhay, additional, Louis, Deepak, additional, Mai Luu, Thuy, additional, Ly, Linh, additional, Majnemer, Annette, additional, Makary, Hala, additional, Marc, Isabelle, additional, Masse, Edith, additional, McDonald, Sarah D., additional, McMillan, Doug, additional, Melamed, Nir, additional, Metcalfe, Amy, additional, Moddemann, Diane, additional, Monterrosa, Luis, additional, Morais, Michelle, additional, Mukerji, Amit, additional, Mundle, William, additional, Murphy, Lynn, additional, Murphy, Kellie, additional, Nuyt, Anne-Monique, additional, Nwaesei, Chuks, additional, O’Brien, Karel, additional, Offringa, Martin, additional, Ojah, Cecil, additional, Ouellet, Annie, additional, Pasquier, Jean-Charles, additional, Pechlivanoglou, Petros, additional, Pelausa, Ermelinda, additional, Piedboeuf, Bruno, additional, Portales-Casamar, Elodie, additional, Premji, Shahirose, additional, Puligandla, Pramod, additional, Pullenayegum, Eleanor, additional, Reichert, Amber, additional, Schneider, Carol, additional, Seshia, Mary, additional, Shah, Vibhuti, additional, Sherlock, Rebecca, additional, Shivananda, Sandesh, additional, Skarsgard, Erik, additional, Skoll, Amanda, additional, Smith, Graeme, additional, Synnes, Anne, additional, Thériault, Katherine, additional, Ting, Joseph, additional, Tough, Suzanne, additional, Toye, Jennifer, additional, Ubhi, Jagdeep, additional, Vincer, Michael, additional, Whittle, Wendy, additional, Whyte, Hilary, additional, Wilson, Doug, additional, Wood, Stephen, additional, Ye, Philip, additional, Yee, Wendy, additional, and Zwicker, Jill, additional

Published
2021
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49. Mode of delivery and neonatal outcomes in extremely preterm Vertex/nonVertex twins

Author

Hiersch, Liran, primary, Shah, Prakesh S., additional, Khurshid, Faiza, additional, Masse, Edith, additional, Murphy, Kellie, additional, McDonald, Sarah D., additional, Carson, George, additional, Barrett, Jon, additional, Melamed, Nir, additional, Ting, Joseph, additional, Cieslak, Zenon, additional, Sherlock, Rebecca, additional, Abou Mehrem, Ayman, additional, Toye, Jennifer, additional, Fajardo, Carlos, additional, Kalapesi, Zarin, additional, Bodani, Jaya, additional, Sankaran, Koravangattu, additional, Daspal, Sibasis, additional, Seshia, Mary, additional, Louis, Deepak, additional, Alvaro, Ruben, additional, Mukerji, Amit, additional, Da Silva, Orlando, additional, Adie, Mohammad, additional, Lee, Kyong-Soon, additional, Dunn, Michael, additional, Lemyre, Brigitte, additional, Pelausa, Ermelinda, additional, Barrington, Keith, additional, Lapoint, Anie, additional, Ethier, Guillaume, additional, Drolet, Christine, additional, Piedboeuf, Bruno, additional, Claveau, Martine, additional, Beltempo, Marc, additional, Bertelle, Valerie, additional, Canning, Roderick, additional, Makary, Hala, additional, Ojah, Cecil, additional, Monterrosa, Luis, additional, Emberley, Julie, additional, Afifi, Jehier, additional, Kajetanowicz, Andrzej, additional, Lee, Shoo K., additional, Abenhaim, Haim, additional, Andrews, James, additional, Armson, Anthony, additional, Audibert, Francois, additional, Aziz, Khalid, additional, Ballantyne, Marilyn, additional, Berard, Anick, additional, Blais, Lucie, additional, Bocking, Alan, additional, Burrows, Jason, additional, Butt, Kimberly, additional, Chaillet, Nils, additional, Chandra, Sue, additional, Church, Paige, additional, Coughlin, Kevin, additional, Crane, Joan, additional, Creighton, Dianne, additional, Daboval, Thierry, additional, Dahlgren, Leanne, additional, de Cabo, Cecilia, additional, Deshpandey, Akhil, additional, Dow, Kimberly, additional, el Helou, Salhab, additional, El-Chaar, Darine, additional, El-Naggar, Walid, additional, Foster, Jonathan, additional, Gagnon, Robert, additional, Gratton, Rob, additional, Han, Victor, additional, Harrison, Adele, additional, Hasan, Shabih, additional, Helewa, Michael, additional, Hicks, Matthew, additional, Joseph, K.S., additional, Lacaze-Masmonteil, Thierry, additional, Lodha, Abhay, additional, Luu, Thuy Mai, additional, Ly, Linh, additional, Majnemer, Annette, additional, Marc, Isabelle, additional, McMillan, Doug, additional, Metcalfe, Amy, additional, Moddemann, Diane, additional, Morais, Michelle, additional, Mundle, William, additional, Murphy, Lynn, additional, Nuyt, Anne-Monique, additional, Nwaesei, Chuks, additional, O’Brien, Karel, additional, Offringa, Martin, additional, Ouellet, Annie, additional, Pasquier, Jean-Charles, additional, Pechlivanoglou, Petros, additional, Portales-Casamar, Elodie, additional, Premji, Shahirose, additional, Puligandla, Pramod, additional, Pullenayegum, Eleanor, additional, Reichert, Amber, additional, Robson, Kate, additional, Schneider, Carol, additional, Shah, Vibhuti, additional, Shivananda, Sandesh, additional, Singhal, Nalini, additional, Skarsgard, Erik, additional, Skoll, Amanda, additional, Smith, Graeme, additional, Synnes, Anne, additional, Thériault, Katherine, additional, Tough, Suzanne, additional, Ubhi, Jagdeep, additional, Vincer, Michael, additional, Whittle, Wendy, additional, Whyte, Hilary, additional, Wilson, Doug, additional, Wood, Stephen, additional, Ye, Philip, additional, Yee, Wendy, additional, and Zwicker, Jill, additional

Published
2021
Full Text
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50. Life after newspapers

Author

Coughlin, Kevin P.

Subjects
News photographers -- Practice, News photographers -- Employment, News photographers -- Beliefs, opinions and attitudes, Newspaper publishing -- Finance, Career development, Company financing, Arts, visual and performing, Business, Publishing industry
Published
2009

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Books, media, physical & digital resources
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