Search

Your search keyword '"Leung, J. S. -Y."' showing total 21 results
Start Over Author "Leung, J. S. -Y."
21 results on '"Leung, J. S. -Y."'

1. In-Flight Performance of Spider's 280 GHz Receivers

Author

Shaw, Elle C., Ade, P. A. R., Akers, S., Amiri, M., Austermann, J., Beall, J., Becker, D. T., Benton, S. J., Bergman, A. S., Bock, J. J., Bond, J. R., Bryan, S. A., Chiang, H. C., Contaldi, C. R., Domagalski, R. S., Doré, O., Duff, S. M., Duivenvoorden, A. J., Eriksen, H. K., Farhang, M., Filippini, J. P., Fissel, L. M., Fraisse, A. A., Freese, K., Galloway, M., Gambrel, A. E., Gandilo, N. N., Ganga, K., Gibbs, S. M., Gourapura, S., Grigorian, A., Gualtieri, R., Gudmundsson, J. E., Halpern, M., Hartley, J., Hasselfield, M., Hilton, G., Holmes, W., Hristov, V. V., Huang, Z., Hubmayr, J., Irwin, K. D., Jones, W. C., Kahn, A., Kermish, Z. D., King, C., Kuo, C. L., Lennox, A. R., Leung, J. S. -Y., Li, S., Luu, T. V., Mason, P. V., May, J., Megerian, K., Moncelsi, L., Morford, T. A., Nagy, J. M., Nie, R., Netterfield, C. B., Nolta, M., Osherson, B., Padilla, I. L., Rahlin, A. S., Redmond, S., Reintsema, C., Romualdez, L. J., Ruhl, J. E., Runyan, M. C., Shariff, J. A., Shiu, C., Soler, J. D., Song, X., Tartakovsky, S., Thommesen, H., Trangsrud, A., Tucker, C., Tucker, R. S., Turner, A. D., Ullom, J., van der List, J. F., Van Lanen, J., Vissers, M. R., Weber, A. C., Wehus, I. K., Wen, S., Wiebe, D. V., and Young, E. Y.

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

SPIDER is a balloon-borne instrument designed to map the cosmic microwave background at degree-angular scales in the presence of Galactic foregrounds. SPIDER has mapped a large sky area in the Southern Hemisphere using more than 2000 transition-edge sensors (TESs) during two NASA Long Duration Balloon flights above the Antarctic continent. During its first flight in January 2015, SPIDER observed in the 95 GHz and 150 GHz frequency bands, setting constraints on the B-mode signature of primordial gravitational waves. Its second flight in the 2022-23 season added new receivers at 280 GHz, each using an array of TESs coupled to the sky through feedhorns formed from stacks of silicon wafers. These receivers are optimized to produce deep maps of polarized Galactic dust emission over a large sky area, providing a unique data set with lasting value to the field. In this work, we describe the instrument's performance during SPIDER's second flight., Comment: Submitted to SPIE Astronomical Telescopes + Instrumentation 2024, JATIS

Published
2024

2. Analysis of Polarized Dust Emission from the First Flight of the SPIDER Balloon-Borne Telescope

Author

SPIDER Collaboration, Ade, P. A. R., Amiri, M., Benton, S. J., Bergman, A. S., Bihary, R., Bock, J. J., Bond, J. R., Bonetti, J. A., Bryan, S. A., Chiang, H. C., Contaldi, C. R., Doré, O., Duivenvoorden, A. J., Eriksen, H. K., Filippini, J. P., Fraisse, A. A., Freese, K., Galloway, M., Gambrel, A. E., Gandilo, N. N., Ganga, K., Gourapura, S., Gualtieri, R., Gudmundsson, J. E., Halpern, M., Hartley, J., Hasselfield, M., Hilton, G., Holmes, W., Hristov, V. V., Huang, Z., Irwin, K. D., Jones, W. C., Karakci, A., Kuo, C. L., Kermish, Z. D., Leung, J. S. -Y., Li, S., Mak, D. S. Y., Mason, P. V., Megerian, K., Moncelsi, L., Morford, T. A., Nagy, J. M., Netterfield, C. B., Nolta, M., O'Brient, R., Osherson, B., Padilla, I. L., Racine, B., Rahlin, A. S., Reintsema, C., Ruhl, J. E., Runyan, M. C., Ruud, T. M., Shariff, J. A., Shaw, E. C., Shiu, C., Soler, J. D., Song, X., Trangsrud, A., Tucker, C., Tucker, R. S., Turner, A. D., van der List, J. F., Weber, A. C., Wehus, I. K., Wiebe, D. V., and Young, E. Y.

Subjects
Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

Using data from the first flight of SPIDER and from Planck HFI, we probe the properties of polarized emission from interstellar dust in the SPIDER observing region. Component separation algorithms operating in both the spatial and harmonic domains are applied to probe their consistency and to quantify modeling errors associated with their assumptions. Analyses spanning the full SPIDER region demonstrate that i) the spectral energy distribution of diffuse Galactic dust emission is broadly consistent with a modified-blackbody (MBB) model with a spectral index of $\beta_\mathrm{d}=1.45\pm0.05$ $(1.47\pm0.06)$ for $E$ ($B$)-mode polarization, slightly lower than that reported by Planck for the full sky; ii) its angular power spectrum is broadly consistent with a power law; and iii) there is no significant detection of line-of-sight decorrelation of the astrophysical polarization. The size of the SPIDER region further allows for a statistically meaningful analysis of the variation in foreground properties within it. Assuming a fixed dust temperature $T_\mathrm{d}=19.6$ K, an analysis of two independent sub-regions of that field results in inferred values of $\beta_\mathrm{d}=1.52\pm0.06$ and $\beta_\mathrm{d}=1.09\pm0.09$, which are inconsistent at the $3.9\,\sigma$ level. Furthermore, a joint analysis of SPIDER and Planck 217 and 353 GHz data within a subset of the SPIDER region is inconsistent with a simple MBB at more than $3\,\sigma$, assuming a common morphology of polarized dust emission over the full range of frequencies. These modeling uncertainties have a small--but non-negligible--impact on limits on the cosmological tensor-to-scalar ratio derived from the \spider dataset. The fidelity of the component separation approaches of future CMB polarization experiments may thus have a significant impact on their constraining power., Comment: 21 pages, 15 figures

Published
2024

3. In-flight gain monitoring of SPIDER's transition-edge sensor arrays

Author

Filippini, J. P., Gambrel, A. E., Rahlin, A. S., Young, E. Y., Ade, P. A. R., Amiri, M., Benton, S. J., Bergman, A. S., Bihary, R., Bock, J. J., Bond, J. R., Bonetti, J. A., Bryan, S. A., Chiang, H. C., Contaldi, C. R., Dore, O., Duivenvoorden, A. J., Eriksen, H. K., Farhang, M., Fraisse, A. A., Freese, K., Galloway, M., Gandilo, N. N., Ganga, K., Gualtieri, R., Gudmundsson, J. E., Halpern, M., Hartley, J., Hasselfield, M., Hilton, G., Holmes, W., Hristov, V. V., Huang, Z., Irwin, K. D., Jones, W. C., Karakci, A., Kuo, C. L., Kermish, Z. D., Leung, J. S. -Y., Li, S., Mak, D. S. Y., Mason, P. V., Megerian, K., Moncelsi, L., Morford, T. A., Nagy, J. M., Netterfield, C. B., Nolta, M., O'Brient, R., Osherson, B., Padilla, I. L., Racine, B., Reintsema, C., Ruhl, J. E., Runyan, M. C., Ruud, T. M., Shariff, J. A., Shaw, E. C., Shiu, C., Soler, J. D., Song, X., Trangsrud, A., Tucker, C., Tucker, R. S., Turner, A. D., van der List, J. F., Weber, A. C., Wehus, I. K., Wen, S., and Wiebe, D. V.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

Experiments deploying large arrays of transition-edge sensors (TESs) often require a robust method to monitor gain variations with minimal loss of observing time. We propose a sensitive and non-intrusive method for monitoring variations in TES responsivity using small square waves applied to the TES bias. We construct an estimator for a TES's small-signal power response from its electrical response that is exact in the limit of strong electrothermal feedback. We discuss the application and validation of this method using flight data from SPIDER, a balloon-borne telescope that observes the polarization of the cosmic microwave background with more than 2000 TESs. This method may prove useful for future balloon- and space-based instruments, where observing time and ground control bandwidth are limited., Comment: 7 pages, 3 figures; Proceedings of the 19th International Workshop on Low Temperature Detectors (LTD19); Minor updates to match published version

Published
2021
Full Text
View/download PDF

4. A Simulation-Based Method for Correcting Mode Coupling in CMB Angular Power Spectra

Author

Leung, J. S. -Y., Hartley, J., Nagy, J. M., Netterfield, C. B., Shariff, J. A., Ade, P. A. R., Amiri, M., Benton, S. J., Bergman, A. S., Bihary, R., Bock, J. J., Bond, J. R., Bonetti, J. A., Bryan, S. A., Chiang, H. C., Contaldi, C. R., Doré, O., Duivenvoorden, A. J., Eriksen, H. K., Farhang, M., Filippini, J. P., Fraisse, A. A., Freese, K., Galloway, M., Gambrel, A. E., Gandilo, N. N., Ganga, K., Gualtieri, R., Gudmundsson, J. E., Halpern, M., Hasselfield, M., Hilton, G., Holmes, W., Hristov, V. V., Huang, Z., Irwin, K. D., Jones, W. C., Karakci, A., Kuo, C. L., Kermish, Z. D., Li, S., Mak, D. S. Y., Mason, P. V., Megerian, K., Moncelsi, L., Morford, T. A., Nolta, M., O'Brient, R., Osherson, B., Padilla, I. L., Racine, B., Rahlin, A. S., Reintsema, C., Ruhl, J. E., Runyan, M. C., Ruud, T. M., Shaw, E. C., Shiu, C., Soler, J. D., Song, X., Trangsrud, A., Tucker, C., Tucker, R. S., Turner, A. D., van der List, J. F., Weber, A. C., Wehus, I. K., Wen, S., Wiebe, D. V., and Young, E. Y.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

Modern CMB analysis pipelines regularly employ complex time-domain filters, beam models, masking, and other techniques during the production of sky maps and their corresponding angular power spectra. However, these processes can generate couplings between multipoles from the same spectrum and from different spectra, in addition to the typical power attenuation. Within the context of pseudo-$C_\ell$ based, MASTER-style analyses, the net effect of the time-domain filtering is commonly approximated by a multiplicative transfer function, $F_{\ell}$, that can fail to capture mode mixing and is dependent on the spectrum of the signal. To address these shortcomings, we have developed a simulation-based spectral correction approach that constructs a two-dimensional transfer matrix, $J_{\ell\ell'}$, which contains information about mode mixing in addition to mode attenuation. We demonstrate the application of this approach on data from the first flight of the SPIDER balloon-borne CMB experiment., Comment: 14 pages, 7 figures; updated to match published version

Published
2021
Full Text
View/download PDF

5. The XFaster Power Spectrum and Likelihood Estimator for the Analysis of Cosmic Microwave Background Maps

Author

Gambrel, A. E., Rahlin, A. S., Song, X., Contaldi, C. R., Ade, P. A. R., Amiri, M., Benton, S. J., Bergman, A. S., Bihary, R., Bock, J. J., Bond, J. R., Bonetti, J. A., Bryan, S. A., Chiang, H. C., Duivenvoorden, A. J., Eriksen, H. K., Farhang, M., Filippini, J. P., Fraisse, A. A., Freese, K., Galloway, M., Gandilo, N. N., Gualtieri, R., Gudmundsson, J. E., Halpern, M., Hartley, J., Hasselfield, M., Hilton, G., Holmes, W., Hristov, V. V., Huang, Z., Irwin, K. D., Jones, W. C., Karakci, A., Kuo, C. L., Kermish, Z. D., Leung, J. S. -Y., Li, S., Mak, D. S. Y., Mason, P. V., Megerian, K., Moncelsi, L., Morford, T. A., Nagy, J. M., Netterfield, C. B., Nolta, M., O'Brient, R., Osherson, B., Padilla, I. L., Racine, B., Reintsema, C., Ruhl, J. E., Ruud, T. M., Shariff, J. A., Shaw, E. C., Shiu, C., Soler, J. D., Trangsrud, A., Tucker, C., Tucker, R. S., Turner, A. D., van der List, J. F., Weber, A. C., Wehus, I. K., Wen, S., Wiebe, D. V., and Young, E. Y.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present the XFaster analysis package. XFaster is a fast, iterative angular power spectrum estimator based on a diagonal approximation to the quadratic Fisher matrix estimator. XFaster uses Monte Carlo simulations to compute noise biases and filter transfer functions and is thus a hybrid of both Monte Carlo and quadratic estimator methods. In contrast to conventional pseudo-$C_\ell$ based methods, the algorithm described here requires a minimal number of simulations, and does not require them to be precisely representative of the data to estimate accurate covariance matrices for the bandpowers. The formalism works with polarization-sensitive observations and also data sets with identical, partially overlapping, or independent survey regions. The method was first implemented for the analysis of BOOMERanG data, and also used as part of the Planck analysis. Here, we describe the full, publicly available analysis package, written in Python, as developed for the analysis of data from the 2015 flight of the SPIDER instrument. The package includes extensions for self-consistently estimating null spectra and for estimating fits for Galactic foreground contributions. We show results from the extensive validation of XFaster using simulations, and its application to the SPIDER data set., Comment: 18 pages, 11 figures

Published
2021
Full Text
View/download PDF

6. A Constraint on Primordial $B$-Modes from the First Flight of the SPIDER Balloon-Borne Telescope

Author

SPIDER Collaboration, Ade, P. A. R., Amiri, M., Benton, S. J., Bergman, A. S., Bihary, R., Bock, J. J., Bond, J. R., Bonetti, J. A., Bryan, S. A., Chiang, H. C., Contaldi, C. R., Doré, O., Duivenvoorden, A. J., Eriksen, H. K., Farhang, M., Filippini, J. P., Fraisse, A. A., Freese, K., Galloway, M., Gambrel, A. E., Gandilo, N. N., Ganga, K., Gualtieri, R., Gudmundsson, J. E., Halpern, M., Hartley, J., Hasselfield, M., Hilton, G., Holmes, W., Hristov, V. V., Huang, Z., Irwin, K. D., Jones, W. C., Karakci, A., Kuo, C. L., Kermish, Z. D., Leung, J. S. -Y., Li, S., Mak, D. S. Y., Mason, P. V., Megerian, K., Moncelsi, L., Morford, T. A., Nagy, J. M., Netterfield, C. B., Nolta, M., O'Brient, R., Osherson, B., Padilla, I. L., Racine, B., Rahlin, A. S., Reintsema, C., Ruhl, J. E., Runyan, M. C., Ruud, T. M., Shariff, J. A., Shaw, E. C., Shiu, C., Soler, J. D., Song, X., Trangsrud, A., Tucker, C., Tucker, R. S., Turner, A. D., van der List, J. F., Weber, A. C., Wehus, I. K., Wen, S., Wiebe, D. V., and Young, E. Y.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present the first linear polarization measurements from the 2015 long-duration balloon flight of SPIDER, an experiment designed to map the polarization of the cosmic microwave background (CMB) on degree angular scales. Results from these measurements include maps and angular power spectra from observations of 4.8% of the sky at 95 and 150 GHz, along with the results of internal consistency tests on these data. While the polarized CMB anisotropy from primordial density perturbations is the dominant signal in this region of sky, Galactic dust emission is also detected with high significance; Galactic synchrotron emission is found to be negligible in the SPIDER bands. We employ two independent foreground-removal techniques in order to explore the sensitivity of the cosmological result to the assumptions made by each. The primary method uses a dust template derived from Planck data to subtract the Galactic dust signal. A second approach, employing a joint analysis of SPIDER and Planck data in the harmonic domain, assumes a modified-blackbody model for the spectral energy distribution of the dust with no constraint on its spatial morphology. Using a likelihood that jointly samples the template amplitude and $r$ parameter space, we derive 95% upper limits on the primordial tensor-to-scalar ratio from Feldman-Cousins and Bayesian constructions, finding $r<0.11$ and $r<0.19$, respectively. Roughly half the uncertainty in $r$ derives from noise associated with the template subtraction. New data at 280 GHz from SPIDER's second flight will complement the Planck polarization maps, providing powerful measurements of the polarized Galactic dust emission., Comment: 29 pages, 13 figures

Published
2021

7. Design and pre-flight performance of SPIDER 280 GHz receivers

Author

Shaw, E. C., Ade, P. A. R., Akers, S., Amiri, M., Austermann, J., Beall, J., Becker, D. T., Benton, S. J., Bergman, A. S., Bock, J. J., Bond, J. R., Bryan, S. A., Chiang, H. C., Contaldi, C. R., Domagalski, R. S., Doré, O., Duff, S. M., Duivenvoorden, A. J., Eriksen, H. K., Farhang, M., Filippini, J. P., Fissel, L. M., Fraisse, A. A., Freese, K., Galloway, M., Gambrel, A. E., Gandilo, N. N., Ganga, K., Grigorian, A., Gualtieri, R., Gudmundsson, J. E., Halpern, M., Hartley, J., Hasselfield, M., Hilton, G., Holmes, W., Hristov, V. V., Huang, Z., Hubmayr, J., Irwin, K. D., Jones, W. C., Kahn, A., Kuo, C. L., Kermish, Z. D., Lennox, A., Leung, J. S. -Y., Li, S., Mason, P. V., Megerian, K., Mocanu, L. M., Moncelsi, L., Morford, T. A., Nagy, J. M., Nie, R., Netterfield, C. B., Nolta, M., Osherson, B., Padilla, I. L., Rahlin, A. S., Redmond, S., Reintsema, C., Romualdez, L. J., Ruhl, J. E., Runyan, M. C., Shariff, J. A., Shiu, C., Soler, J. D., Song, X., Thommesen, H., Trangsrud, A., Tucker, C., Tucker, R. S., Turner, A. D., Ullom, J., van der List, J. F., Van Lanen, J., Vissers, M. R., Weber, A. C., Wen, S., Wehus, I. K., Wiebe, D. V., and Young, E. Y.

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

In this work we describe upgrades to the Spider balloon-borne telescope in preparation for its second flight, currently planned for December 2021. The Spider instrument is optimized to search for a primordial B-mode polarization signature in the cosmic microwave background at degree angular scales. During its first flight in 2015, Spider mapped ~10% of the sky at 95 and 150 GHz. The payload for the second Antarctic flight will incorporate three new 280 GHz receivers alongside three refurbished 95- and 150 GHz receivers from Spider's first flight. In this work we discuss the design and characterization of these new receivers, which employ over 1500 feedhorn-coupled transition-edge sensors. We describe pre-flight laboratory measurements of detector properties, and the optical performance of completed receivers. These receivers will map a wide area of the sky at 280 GHz, providing new information on polarized Galactic dust emission that will help to separate it from the cosmological signal., Comment: 13 pages, 8 figures; as published in the conference proceedings for SPIE Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X (2020)

Published
2020
Full Text
View/download PDF

8. Download by Parachute: Retrieval of Assets from High Altitude Balloons

Author

Sirks, E. L., Clark, P., Massey, R. J., Benton, S. J., Brown, A. M., Damaren, C. J., Eifler, T., Fraisse, A. A., Frenk, C., Funk, M., Galloway, M. N., Gill, A., Hartley, J. W., Holder, B., Huff, E. M., Jauzac, M., Jones, W. C., Lagattuta, D., Leung, J. S. -Y., Li, L., Luu, T. V. T., McCleary, J., Nagy, J. M., Netterfield, C. B., Redmond, S., Rhodes, J. D., Romualdez, L. J., Schmoll, J., Shaaban, M. M., and Tam, S. -I.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

We present a publicly-available toolkit of flight-proven hardware and software to retrieve 5 TB of data or small physical samples from a stratospheric balloon platform. Before launch, a capsule is attached to the balloon, and rises with it. Upon remote command, the capsule is released and descends via parachute, continuously transmitting its location. Software to predict the trajectory can be used to select a safe but accessible landing site. We dropped two such capsules from the SuperBIT telescope, in September 2019. The capsules took ~37 minutes to descend from ~30 km altitude. They drifted 32 km and 19 km horizontally, but landed within 300 m and 600 m of their predicted landing sites. We found them easily, and successfully recovered the data. We welcome interest from other balloon teams for whom the technology would be useful.

Published
2020
Full Text
View/download PDF

9. In-Flight Gain Monitoring of SPIDER's Transition-Edge Sensor Arrays

Author

Filippini, J. P., Gambrel, A. E., Rahlin, A. S., Young, E. Y., Ade, P. A. R., Amiri, M., Benton, S. J., Bergman, A. S., Bihary, R., Bock, J. J., Bond, J. R., Bonetti, J. A., Bryan, S. A., Chiang, H. C., Contaldi, C. R., Doré, O., Duivenvoorden, Adri J., Eriksen, H. K., Farhang, M., Fraisse, A. A., Freese, Katherine, Galloway, M., Gandilo, N. N., Ganga, K., Gualtieri, R., Gudmundsson, Jón E., Halpern, M., Hartley, J., Hasselfield, M., Hilton, G., Holmes, W., Hristov, V. V., Huang, Z., Irwin, K. D., Jones, W. C., Karakci, A., Kuo, C. L., Kermish, Z. D., Leung, J. S.-Y., Li, S., Mak, D. S. Y., Mason, P. V., Megerian, K., Moncelsi, L., Morford, T. A., Nagy, J. M., Netterfield, C. B., Nolta, M., O'Brient, R., Osherson, B., Padilla, I. L., Racine, B., Reintsema, C., Ruhl, J. E., Runyan, M. C., Ruud, T. M., Shariff, J. A., Shaw, E. C., Shiu, C., Soler, J. D., Song, X., Trangsrud, A., Tucker, C., Tucker, R. S., Turner, A. D., van der List, J. F., Weber, A. C., Wehus, I. K., Wen, S., Wiebe, D. V., Filippini, J. P., Gambrel, A. E., Rahlin, A. S., Young, E. Y., Ade, P. A. R., Amiri, M., Benton, S. J., Bergman, A. S., Bihary, R., Bock, J. J., Bond, J. R., Bonetti, J. A., Bryan, S. A., Chiang, H. C., Contaldi, C. R., Doré, O., Duivenvoorden, Adri J., Eriksen, H. K., Farhang, M., Fraisse, A. A., Freese, Katherine, Galloway, M., Gandilo, N. N., Ganga, K., Gualtieri, R., Gudmundsson, Jón E., Halpern, M., Hartley, J., Hasselfield, M., Hilton, G., Holmes, W., Hristov, V. V., Huang, Z., Irwin, K. D., Jones, W. C., Karakci, A., Kuo, C. L., Kermish, Z. D., Leung, J. S.-Y., Li, S., Mak, D. S. Y., Mason, P. V., Megerian, K., Moncelsi, L., Morford, T. A., Nagy, J. M., Netterfield, C. B., Nolta, M., O'Brient, R., Osherson, B., Padilla, I. L., Racine, B., Reintsema, C., Ruhl, J. E., Runyan, M. C., Ruud, T. M., Shariff, J. A., Shaw, E. C., Shiu, C., Soler, J. D., Song, X., Trangsrud, A., Tucker, C., Tucker, R. S., Turner, A. D., van der List, J. F., Weber, A. C., Wehus, I. K., Wen, S., and Wiebe, D. V.

Abstract

Experiments deploying large arrays of transition-edge sensors (TESs) often require a robust method to monitor gain variations with minimal loss of observing time. We propose a sensitive and non-intrusive method for monitoring variations in TES responsivity using small square waves applied to the TES bias. We construct an estimator for a TES's small-signal power response from its electrical response that is exact in the limit of strong electrothermal feedback. We discuss the application and validation of this method using flight data from SPIDER, a balloon-borne telescope that observes the polarization of the cosmic microwave background with more than 2000 TESs. This method may prove useful for future balloon- and space-based instruments, where observing time and ground control bandwidth are limited.

Published
2022
Full Text
View/download PDF

10. A Simulation-based Method for Correcting Mode Coupling in CMB Angular Power Spectra

Author

Leung, J. S.-Y., Hartley, J., Nagy, J. M., Netterfield, C. B., Shariff, J. A., Ade, P. A. R., Amiri, M., Benton, S. J., Bergman, A. S., Bihary, R., Bock, J. J., Bond, J. R., Bonetti, J. A., Bryan, S. A., Chiang, H. C., Contaldi, C. R., Dore, O., Duivenvoorden, A. J., Eriksen, H. K., Farhang, M., Filippini, J. P., Fraisse, A. A., Freese, Katherine, Galloway, M., Gambrel, A. E., Gandilo, N. N., Ganga, K., Gualtieri, R., Gudmundsson, Jón E., Halpern, M., Hasselfield, M., Hilton, G., Holmes, W., Hristov, V. V., Huang, Z., Irwin, K. D., Jones, W. C., Karakci, A., Kuo, C. L., Kermish, Z. D., Li, S., Mak, D. S. Y., Mason, P., Megerian, K., Moncelsi, L., Morford, T. A., Nolta, M., Osherson, B., Padilla, I. L., Racine, B., Rahlin, A. S., Reintsema, C., Ruhl, J. E., Runyan, M. C., Ruud, T. M., Shaw, E. C., Shiu, C., Soler, J. D., Song, X., Trangsrud, A., Tucker, C., Tucker, R. S., Turner, A. D., van der List, J. F., Weber, A. C., Wehus, I. K., Wen, S., Wiebe, D., Young, E. Y., Leung, J. S.-Y., Hartley, J., Nagy, J. M., Netterfield, C. B., Shariff, J. A., Ade, P. A. R., Amiri, M., Benton, S. J., Bergman, A. S., Bihary, R., Bock, J. J., Bond, J. R., Bonetti, J. A., Bryan, S. A., Chiang, H. C., Contaldi, C. R., Dore, O., Duivenvoorden, A. J., Eriksen, H. K., Farhang, M., Filippini, J. P., Fraisse, A. A., Freese, Katherine, Galloway, M., Gambrel, A. E., Gandilo, N. N., Ganga, K., Gualtieri, R., Gudmundsson, Jón E., Halpern, M., Hasselfield, M., Hilton, G., Holmes, W., Hristov, V. V., Huang, Z., Irwin, K. D., Jones, W. C., Karakci, A., Kuo, C. L., Kermish, Z. D., Li, S., Mak, D. S. Y., Mason, P., Megerian, K., Moncelsi, L., Morford, T. A., Nolta, M., Osherson, B., Padilla, I. L., Racine, B., Rahlin, A. S., Reintsema, C., Ruhl, J. E., Runyan, M. C., Ruud, T. M., Shaw, E. C., Shiu, C., Soler, J. D., Song, X., Trangsrud, A., Tucker, C., Tucker, R. S., Turner, A. D., van der List, J. F., Weber, A. C., Wehus, I. K., Wen, S., Wiebe, D., and Young, E. Y.

Abstract

Modern cosmic microwave background (CMB) analysis pipelines regularly employ complex time-domain filters, beam models, masking, and other techniques during the production of sky maps and their corresponding angular power spectra. However, these processes can generate couplings between multipoles from the same spectrum and from different spectra, in addition to the typical power attenuation. Within the context of pseudo-C-l based, MASTER-style analyses, the net effect of the time-domain filtering is commonly approximated by a multiplicative transfer function, F-l , that can fail to capture mode mixing and is dependent on the spectrum of the signal. To address these shortcomings, we have developed a simulation-based spectral correction approach that constructs a two-dimensional transfer matrix, J(ll'), which contains information about mode mixing in addition to mode attenuation. We demonstrate the application of this approach on data from the first flight of the Spider balloon-borne CMB experiment.

Published
2022
Full Text
View/download PDF

11. A Constraint on Primordial B-modes from the First Flight of the Spider Balloon-borne Telescope

Author

Ade, P. A. R., Amiri, M., Benton, S. J., Bergman, A. S., Bihary, R., Bock, J. J., Bond, J. R., Bonetti, J. A., Bryan, S. A., Chiang, H. C., Contaldi, C. R., Doré, O., Duivenvoorden, Adri J., Eriksen, H. K., Farhang, M., Filippini, J. P., Fraisse, A. A., Freese, Katherine, Galloway, M., Gambrel, A. E., Gandilo, N. N., Ganga, K., Gualtieri, R., Gudmundsson, Jón E., Halpern, M., Hartley, J., Hasselfield, M., Hilton, G., Holmes, W., Hristov, V. V., Huang, Z., Irwin, K. D., Jones, W. C., Karakci, A., Kuo, C. L., Kermish, Z. D., Leung, J. S.-Y., Li, S., Mak, D. S. Y., Mason, P., Megerian, K., Moncelsi, L., Morford, T. A., Nagy, J. M., Netterfield, C. B., Nolta, M., O'Brient, R., Osherson, B., Padilla, I. L., Racine, B., Rahlin, A. S., Reintsema, C., Ruhl, J. E., Runyan, M. C., Ruud, T. M., Shariff, J. A., Shaw, E. C., Shiu, C., Soler, J. D., Song, X., Trangsrud, A., Tucker, C., Tucker, R. S., Turner, A. D., van der List, J. F., Weber, A. C., Wehus, I. K., Wen, S., Wiebe, D., Young, E. Y., Ade, P. A. R., Amiri, M., Benton, S. J., Bergman, A. S., Bihary, R., Bock, J. J., Bond, J. R., Bonetti, J. A., Bryan, S. A., Chiang, H. C., Contaldi, C. R., Doré, O., Duivenvoorden, Adri J., Eriksen, H. K., Farhang, M., Filippini, J. P., Fraisse, A. A., Freese, Katherine, Galloway, M., Gambrel, A. E., Gandilo, N. N., Ganga, K., Gualtieri, R., Gudmundsson, Jón E., Halpern, M., Hartley, J., Hasselfield, M., Hilton, G., Holmes, W., Hristov, V. V., Huang, Z., Irwin, K. D., Jones, W. C., Karakci, A., Kuo, C. L., Kermish, Z. D., Leung, J. S.-Y., Li, S., Mak, D. S. Y., Mason, P., Megerian, K., Moncelsi, L., Morford, T. A., Nagy, J. M., Netterfield, C. B., Nolta, M., O'Brient, R., Osherson, B., Padilla, I. L., Racine, B., Rahlin, A. S., Reintsema, C., Ruhl, J. E., Runyan, M. C., Ruud, T. M., Shariff, J. A., Shaw, E. C., Shiu, C., Soler, J. D., Song, X., Trangsrud, A., Tucker, C., Tucker, R. S., Turner, A. D., van der List, J. F., Weber, A. C., Wehus, I. K., Wen, S., Wiebe, D., and Young, E. Y.

Abstract

We present the first linear polarization measurements from the 2015 long-duration balloon flight of SPIDER, which is an experiment that is designed to map the polarization of the cosmic microwave background (CMB) on degree angular scales. The results from these measurements include maps and angular power spectra from observations of 4.8% of the sky at 95 and 150 GHz, along with the results of internal consistency tests on these data. While the polarized CMB anisotropy from primordial density perturbations is the dominant signal in this region of sky, Galactic dust emission is also detected with high significance. Galactic synchrotron emission is found to be negligible in the SPIDER bands. We employ two independent foreground-removal techniques to explore the sensitivity of the cosmological result to the assumptions made by each. The primary method uses a dust template derived from Planck data to subtract the Galactic dust signal. A second approach, which constitutes a joint analysis of SPIDER and Planck data in the harmonic domain, assumes a modified-blackbody model for the spectral energy distribution of the dust with no constraint on its spatial morphology. Using a likelihood that jointly samples the template amplitude and r parameter space, we derive 95% upper limits on the primordial tensor-to-scalar ratio from Feldman-Cousins and Bayesian constructions, finding r < 0.11 and r < 0.19, respectively. Roughly half the uncertainty in r derives from noise associated with the template subtraction. New data at 280 GHz from SPIDER´s second flight will complement the Planck polarization maps, providing powerful measurements of the polarized Galactic dust emission.

Published
2022
Full Text
View/download PDF

12. In-Flight Gain Monitoring of SPIDER’s Transition-Edge Sensor Arrays

Author

Filippini, J. P., primary, Gambrel, A. E., additional, Rahlin, A. S., additional, Young, E. Y., additional, Ade, P. A. R., additional, Amiri, M., additional, Benton, S. J., additional, Bergman, A. S., additional, Bihary, R., additional, Bock, J. J., additional, Bond, J. R., additional, Bonetti, J. A., additional, Bryan, S. A., additional, Chiang, H. C., additional, Contaldi, C. R., additional, Doré, O., additional, Duivenvoorden, A. J., additional, Eriksen, H. K., additional, Farhang, M., additional, Fraisse, A. A., additional, Freese, K., additional, Galloway, M., additional, Gandilo, N. N., additional, Ganga, K., additional, Gualtieri, R., additional, Gudmundsson, J. E., additional, Halpern, M., additional, Hartley, J., additional, Hasselfield, M., additional, Hilton, G., additional, Holmes, W., additional, Hristov, V. V., additional, Huang, Z., additional, Irwin, K. D., additional, Jones, W. C., additional, Karakci, A., additional, Kuo, C. L., additional, Kermish, Z. D., additional, Leung, J. S.- Y., additional, Li, S., additional, Mak, D. S. Y., additional, Mason, P. V., additional, Megerian, K., additional, Moncelsi, L., additional, Morford, T. A., additional, Nagy, J. M., additional, Netterfield, C. B., additional, Nolta, M., additional, O’Brient, R., additional, Osherson, B., additional, Padilla, I. L., additional, Racine, B., additional, Reintsema, C., additional, Ruhl, J. E., additional, Runyan, M. C., additional, Ruud, T. M., additional, Shariff, J. A., additional, Shaw, E. C., additional, Shiu, C., additional, Soler, J. D., additional, Song, X., additional, Trangsrud, A., additional, Tucker, C., additional, Tucker, R. S., additional, Turner, A. D., additional, List, J. F. van der, additional, Weber, A. C., additional, Wehus, I. K., additional, Wen, S., additional, and Wiebe, D. V., additional

Published
2022
Full Text
View/download PDF

13. A Simulation-based Method for Correcting Mode Coupling in CMB Angular Power Spectra

Author

Leung, J. S.-Y., primary, Hartley, J., additional, Nagy, J. M., additional, Netterfield, C. B., additional, Shariff, J. A., additional, Ade, P. A. R., additional, Amiri, M., additional, Benton, S. J., additional, Bergman, A. S., additional, Bihary, R., additional, Bock, J. J., additional, Bond, J. R., additional, Bonetti, J. A., additional, Bryan, S. A., additional, Chiang, H. C., additional, Contaldi, C. R., additional, Doré, O., additional, Duivenvoorden, A. J., additional, Eriksen, H. K., additional, Farhang, M., additional, Filippini, J. P., additional, Fraisse, A. A., additional, Freese, K., additional, Galloway, M., additional, Gambrel, A. E., additional, Gandilo, N. N., additional, Ganga, K., additional, Gualtieri, R., additional, Gudmundsson, J. E., additional, Halpern, M., additional, Hasselfield, M., additional, Hilton, G., additional, Holmes, W., additional, Hristov, V. V., additional, Huang, Z., additional, Irwin, K. D., additional, Jones, W. C., additional, Karakci, A., additional, Kuo, C. L., additional, Kermish, Z. D., additional, Li, S., additional, Mak, D. S. Y., additional, Mason, P. V., additional, Megerian, K., additional, Moncelsi, L., additional, Morford, T. A., additional, Nolta, M., additional, O’Brient, R., additional, Osherson, B., additional, Padilla, I. L., additional, Racine, B., additional, Rahlin, A. S., additional, Reintsema, C., additional, Ruhl, J. E., additional, Runyan, M. C., additional, Ruud, T. M., additional, Shaw, E. C., additional, Shiu, C., additional, Soler, J. D., additional, Song, X., additional, Trangsrud, A., additional, Tucker, C., additional, Tucker, R. S., additional, Turner, A. D., additional, van der List, J. F., additional, Weber, A. C., additional, Wehus, I. K., additional, Wen, S., additional, Wiebe, D. V., additional, and Young, E. Y., additional

Published
2022
Full Text
View/download PDF

14. A Constraint on Primordial B-modes from the First Flight of the Spider Balloon-borne Telescope

Author

Ade, P. A. R., primary, Amiri, M., additional, Benton, S. J., additional, Bergman, A. S., additional, Bihary, R., additional, Bock, J. J., additional, Bond, J. R., additional, Bonetti, J. A., additional, Bryan, S. A., additional, Chiang, H. C., additional, Contaldi, C. R., additional, Doré, O., additional, Duivenvoorden, A. J., additional, Eriksen, H. K., additional, Farhang, M., additional, Filippini, J. P., additional, Fraisse, A. A., additional, Freese, K., additional, Galloway, M., additional, Gambrel, A. E., additional, Gandilo, N. N., additional, Ganga, K., additional, Gualtieri, R., additional, Gudmundsson, J. E., additional, Halpern, M., additional, Hartley, J., additional, Hasselfield, M., additional, Hilton, G., additional, Holmes, W., additional, Hristov, V. V., additional, Huang, Z., additional, Irwin, K. D., additional, Jones, W. C., additional, Karakci, A., additional, Kuo, C. L., additional, Kermish, Z. D., additional, Leung, J. S.-Y., additional, Li, S., additional, Mak, D. S. Y., additional, Mason, P. V., additional, Megerian, K., additional, Moncelsi, L., additional, Morford, T. A., additional, Nagy, J. M., additional, Netterfield, C. B., additional, Nolta, M., additional, O’Brient, R., additional, Osherson, B., additional, Padilla, I. L., additional, Racine, B., additional, Rahlin, A. S., additional, Reintsema, C., additional, Ruhl, J. E., additional, Runyan, M. C., additional, Ruud, T. M., additional, Shariff, J. A., additional, Shaw, E. C., additional, Shiu, C., additional, Soler, J. D., additional, Song, X., additional, Trangsrud, A., additional, Tucker, C., additional, Tucker, R. S., additional, Turner, A. D., additional, van der List, J. F., additional, Weber, A. C., additional, Wehus, I. K., additional, Wen, S., additional, Wiebe, D. V., additional, and Young, E. Y., additional

Published
2022
Full Text
View/download PDF

15. The XFaster Power Spectrum and Likelihood Estimator for the Analysis of Cosmic Microwave Background Maps

Author

Gambrel, A. E., primary, Rahlin, A. S., additional, Song, X., additional, Contaldi, C. R., additional, Ade, P. A. R., additional, Amiri, M., additional, Benton, S. J., additional, Bergman, A. S., additional, Bihary, R., additional, Bock, J. J., additional, Bond, J. R., additional, Bonetti, J. A., additional, Bryan, S. A., additional, Chiang, H. C., additional, Duivenvoorden, A. J., additional, Eriksen, H. K., additional, Farhang, M., additional, Filippini, J. P., additional, Fraisse, A. A., additional, Freese, K., additional, Galloway, M., additional, Gandilo, N. N., additional, Gualtieri, R., additional, Gudmundsson, J. E., additional, Halpern, M., additional, Hartley, J., additional, Hasselfield, M., additional, Hilton, G., additional, Holmes, W., additional, Hristov, V. V., additional, Huang, Z., additional, Irwin, K. D., additional, Jones, W. C., additional, Karakci, A., additional, Kuo, C. L., additional, Kermish, Z. D., additional, Leung, J. S.-Y., additional, Li, S., additional, Mak, D. S. Y., additional, Mason, P. V., additional, Megerian, K., additional, Moncelsi, L., additional, Morford, T. A., additional, Nagy, J. M., additional, Netterfield, C. B., additional, Nolta, M., additional, O’Brient, R., additional, Osherson, B., additional, Padilla, I. L., additional, Racine, B., additional, Reintsema, C., additional, Ruhl, J. E., additional, Ruud, T. M., additional, Shariff, J. A., additional, Shaw, E. C., additional, Shiu, C., additional, Soler, J. D., additional, Trangsrud, A., additional, Tucker, C., additional, Tucker, R. S., additional, Turner, A. D., additional, List, J. F. van der, additional, Weber, A. C., additional, Wehus, I. K., additional, Wen, S., additional, Wiebe, D. V., additional, and Young, E. Y., additional

Published
2021
Full Text
View/download PDF

16. A Constraint on Primordial B-Modes from the First Flight of the SPIDER Balloon-Borne Telescope

Author

Ade, P. A. R., Amiri, M., Benton, S. J., Bergman, A. S., Bihary, R., Bock, J. J., Bond, J. R., Bonetti, J. A., Bryan, S. A., Chiang, H. C., Contaldi, C. R., Doré, O., Duivenvoorden, A. J., Eriksen, H. K., Farhang, M., Filippini, J. P., Fraisse, A. A., Freese, K., Galloway, M., Gambrel, A. E., Gandilo, N. N., Ganga, K., Gualtieri, R., Gudmundsson, J. E., Halpern, M., Hartley, J., Hasselfield, M., Hilton, G., Holmes, W., Hristov, V. V., Huang, Z., Irwin, K. D., Jones, W. C., Karakci, A., Kuo, C. L., Kermish, Z. D., Leung, J. S. -Y., Li, S., Mak, D. S. Y., Mason, P. V., Megerian, K., Moncelsi, L., Morford, T. A., Nagy, J. M., Netterfield, C. B., Nolta, M., O'Brient, R., Osherson, B., Padilla, I. L., Racine, B., Rahlin, A. S., Reintsema, C., Ruhl, J. E., Runyan, M. C., Ruud, T. M., Shariff, J. A., Shaw, E. C., Shiu, C., Soler, J. D., Song, X., Trangsrud, A., Tucker, C., Tucker, R. S., Turner, A. D., List, J. F. van der, Weber, A. C., Wehus, I. K., Wen, S., Wiebe, D. V., Young, E. Y., Ade, P. A. R., Amiri, M., Benton, S. J., Bergman, A. S., Bihary, R., Bock, J. J., Bond, J. R., Bonetti, J. A., Bryan, S. A., Chiang, H. C., Contaldi, C. R., Doré, O., Duivenvoorden, A. J., Eriksen, H. K., Farhang, M., Filippini, J. P., Fraisse, A. A., Freese, K., Galloway, M., Gambrel, A. E., Gandilo, N. N., Ganga, K., Gualtieri, R., Gudmundsson, J. E., Halpern, M., Hartley, J., Hasselfield, M., Hilton, G., Holmes, W., Hristov, V. V., Huang, Z., Irwin, K. D., Jones, W. C., Karakci, A., Kuo, C. L., Kermish, Z. D., Leung, J. S. -Y., Li, S., Mak, D. S. Y., Mason, P. V., Megerian, K., Moncelsi, L., Morford, T. A., Nagy, J. M., Netterfield, C. B., Nolta, M., O'Brient, R., Osherson, B., Padilla, I. L., Racine, B., Rahlin, A. S., Reintsema, C., Ruhl, J. E., Runyan, M. C., Ruud, T. M., Shariff, J. A., Shaw, E. C., Shiu, C., Soler, J. D., Song, X., Trangsrud, A., Tucker, C., Tucker, R. S., Turner, A. D., List, J. F. van der, Weber, A. C., Wehus, I. K., Wen, S., Wiebe, D. V., and Young, E. Y.

Abstract

We present the first linear polarization measurements from the 2015 long-duration balloon flight of SPIDER, an experiment designed to map the polarization of the cosmic microwave background (CMB) on degree angular scales. Results from these measurements include maps and angular power spectra from observations of 4.8% of the sky at 95 and 150 GHz, along with the results of internal consistency tests on these data. While the polarized CMB anisotropy from primordial density perturbations is the dominant signal in this region of sky, Galactic dust emission is also detected with high significance; Galactic synchrotron emission is found to be negligible in the SPIDER bands. We employ two independent foreground-removal techniques in order to explore the sensitivity of the cosmological result to the assumptions made by each. The primary method uses a dust template derived from Planck data to subtract the Galactic dust signal. A second approach, employing a joint analysis of SPIDER and Planck data in the harmonic domain, assumes a modified-blackbody model for the spectral energy distribution of the dust with no constraint on its spatial morphology. Using a likelihood that jointly samples the template amplitude and r parameter space, we derive 95% upper limits on the primordial tensor-to-scalar ratio from Feldman-Cousins and Bayesian constructions, finding r<0.11 and r<0.19, respectively. Roughly half the uncertainty in r derives from noise associated with the template subtraction. New data at 280 GHz from SPIDER's second flight will complement the Planck polarization maps, providing powerful measurements of the polarized Galactic dust emission.

Published
2021

17. Design and pre-flight performance of SPIDER 280 GHz receivers

Author

Shaw, E. C., primary, Ade, P.A.R., additional, Akers, S., additional, Amiri, M., additional, Austermann, Jason E., additional, Beall, James A., additional, Becker, D.T., additional, Benton, S.J., additional, Bergman, A. S., additional, Bock, J.J., additional, Bond, J.R., additional, Bryan, S.A., additional, Chiang, H.C., additional, Contaldi, C.R., additional, Domagalski, R.S., additional, Dore, O., additional, Duff, S. M., additional, Duivenvoorden, A.J., additional, Eriksen, H.K., additional, Farhang, M., additional, Filippini, J. P., additional, Fissel, L.M., additional, Fraisse, A.A., additional, Freese, K., additional, Galloway, M., additional, Gambrel, A. E., additional, Gandilo, N.N., additional, Ganga, K., additional, Grigorian, A., additional, Gualtieri, R, additional, Gudmundsson, J.E., additional, Halpern, M., additional, Hartley, J., additional, Hasselfield, M., additional, Hilton, G., additional, Holmes, W., additional, Hristov, V.V., additional, Huang, Z., additional, Hubmayr, Johannes, additional, Irwin, K.D., additional, Jones, W.C., additional, Kahn, A., additional, Kuo, C.L., additional, Kermish, Z.D., additional, Lennox, A., additional, Leung, J. S.-Y., additional, Megerian, K., additional, Reintsema, C., additional, Li, S., additional, Mason, P.V., additional, Runyan, M. C., additional, Moncelsi, L., additional, Morford, T.A., additional, Nagy, J.M., additional, Nie, R., additional, Mocanu, L. M., additional, Padilla, I.L., additional, Netterfield, C. B., additional, Osherson, B., additional, Rahlin, A.S., additional, Redmond, S., additional, Turner, A. D., additional, Romualdez, L.J., additional, Nolta, M., additional, Ruhl, J.E., additional, Shariff, J.A., additional, Shiu, C., additional, Soler, J.D., additional, Song, X., additional, Trangsrud, A., additional, Thommesen, H., additional, Tucker, C, additional, Tucker, R.S., additional, Ullom, Joel, additional, van der List, J.F., additional, Van Lanen, Jeff, additional, Vissers, M. R., additional, Weber, A. C., additional, Wen, S., additional, Wehus, I.K., additional, Wiebe, D.V., additional, and Young, E.Y., additional

Published
2020
Full Text
View/download PDF

18. Design and pre-flight performance of SPIDER 280 GHz receivers

Author

Zmuidzinas, Jonas, Gao, Jian-Rong, Shaw, E. C., Ade, P.A.R., Akers, S., Amiri, M., Austermann, Jason E., Beall, James A., Becker, D.T., Benton, S.J., Bergman, A. S., Bock, J. J., Bond, J.R., Bryan, S.A., Chiang, H.C., Contaldi, C.R., Domagalski, R.S., Doré, O., Duff, S. M., Duivenvoorden, A.J., Eriksen, H.K., Farhang, M., Filippini, J. P., Fissel, L.M., Fraisse, A.A., Freese, K., Galloway, M., Gambrel, A. E., Gandilo, N.N., Ganga, K., Grigorian, A., Gualtieri, R, Gudmundsson, J.E., Halpern, M., Hartley, J., Hasselfield, M., Hilton, G., Holmes, W., Hristov, V. V., Huang, Z., Hubmayr, Johannes, Irwin, K.D., Jones, W.C., Kahn, A., Kuo, C.L., Kermish, Z.D., Lennox, A., Leung, J. S.-Y., Megerian, K., Reintsema, C., Li, S., Mason, P. V., Runyan, M. C., Moncelsi, L., Morford, T. A., Nagy, J.M., Nie, R., Mocanu, L. M., Padilla, I.L., Netterfield, C. B., Osherson, B., Rahlin, A.S., Redmond, S., Turner, A. D., Romualdez, L.J., Nolta, M., Ruhl, J.E., Shariff, J.A., Shiu, C., Soler, J.D., Song, X., Trangsrud, A., Thommesen, H., Tucker, C, Tucker, R. S., Ullom, Joel, van der List, J.F., Van Lanen, Jeff, Vissers, M. R., Weber, A. C., Wen, S., Wehus, I.K., Wiebe, D.V., Young, E.Y., Zmuidzinas, Jonas, Gao, Jian-Rong, Shaw, E. C., Ade, P.A.R., Akers, S., Amiri, M., Austermann, Jason E., Beall, James A., Becker, D.T., Benton, S.J., Bergman, A. S., Bock, J. J., Bond, J.R., Bryan, S.A., Chiang, H.C., Contaldi, C.R., Domagalski, R.S., Doré, O., Duff, S. M., Duivenvoorden, A.J., Eriksen, H.K., Farhang, M., Filippini, J. P., Fissel, L.M., Fraisse, A.A., Freese, K., Galloway, M., Gambrel, A. E., Gandilo, N.N., Ganga, K., Grigorian, A., Gualtieri, R, Gudmundsson, J.E., Halpern, M., Hartley, J., Hasselfield, M., Hilton, G., Holmes, W., Hristov, V. V., Huang, Z., Hubmayr, Johannes, Irwin, K.D., Jones, W.C., Kahn, A., Kuo, C.L., Kermish, Z.D., Lennox, A., Leung, J. S.-Y., Megerian, K., Reintsema, C., Li, S., Mason, P. V., Runyan, M. C., Moncelsi, L., Morford, T. A., Nagy, J.M., Nie, R., Mocanu, L. M., Padilla, I.L., Netterfield, C. B., Osherson, B., Rahlin, A.S., Redmond, S., Turner, A. D., Romualdez, L.J., Nolta, M., Ruhl, J.E., Shariff, J.A., Shiu, C., Soler, J.D., Song, X., Trangsrud, A., Thommesen, H., Tucker, C, Tucker, R. S., Ullom, Joel, van der List, J.F., Van Lanen, Jeff, Vissers, M. R., Weber, A. C., Wen, S., Wehus, I.K., Wiebe, D.V., and Young, E.Y.

Abstract

In this work we describe upgrades to the Spider balloon-borne telescope in preparation for its second flight, currently planned for December 2021. The Spider instrument is optimized to search for a primordial B-mode polarization signature in the cosmic microwave background at degree angular scales. During its first flight in 2015, Spider mapped ~10% of the sky at 95 and 150 GHz. The payload for the second Antarctic flight will incorporate three new 280 GHz receivers alongside three refurbished 95- and 150 GHz receivers from Spider's first flight. In this work we discuss the design and characterization of these new receivers, which employ over 1500 feedhorn-coupled transition-edge sensors. We describe pre-flight laboratory measurements of detector properties, and the optical performance of completed receivers. These receivers will map a wide area of the sky at 280 GHz, providing new information on polarized Galactic dust emission that will help to separate it from the cosmological signal.

Published
2020

19. In-flight performance of SPIDER's 280 GHz receivers

Author

Zmuidzinas, Jonas, Gao, Jian-Rong, Shaw, E. C., Ade, P. A. R., Akers, S., Amiri, M., Austermann, J., Beall, J., Becker, D. T., Benton, S. J., Bergman, A. S., Bock, J. J., Bond, J. R., Bryan, S. A., Chiang, H. C., Contaldi, C. R., Domagalski, R. S., Doré, O., Duff, S. M., Duivenvoorden, A. J., Ericksen, H. K., Farhang, M., Filippini, J. P., Fissel, L. M., Fraisse, A. A., Freese, K., Galloway, M., Gambrel, A. E., Gandilo, N. N., Ganga, K., Gibbs, S. M., Gourapura, S., Grigorian, A., Gualtieri, R., Gudmundsson, J. E., Halpern, M., Hartley, J., Hasselfield, M., Hilton, G., Holmes, W., Hristov, V. V., Huang, Z., Hubmayr, J., Irwin, K. D., Jones, W. C., Kahn, A., Kermish, Z. D., King, C., Kuo, C. L., Lennox, A. R., Leung, J. S.-Y., Li, S., Luu, T. V., Mason, P. V., May, J., Megerian, K., Moncelsi, L., Morford, T. A., Nagy, J. M., Nie, R., Netterfield, C. B., Nolta, M., Osherson, B., Padilla, I. L., Rahlin, A. S., Redmond, S., Reintsema, C., Romualdez, L. J., Ruhl, J. E., Runyan, M. C., Shariff, J. A., Shiu, C., Soler, J. D., Song, X., Tartakovsky, S., Thommesen, H., Trangsrud, A., Tucker, C., Tucker, R. S., Turner, A. D., Ullom, J., van der List, J. F., Van Lanen, J., Vissers, M. R., Weber, A. C., Wen, S., Wehus, I. K., Wiebe, D. V., and Young, E. Y.

Published
2024
Full Text
View/download PDF

20. Design and pre-flight performance of SPIDER 280 GHz receivers

Author

Zmuidzinas, Jonas, Gao, Jian-Rong, Shaw, E. C., Ade, P. A. R., Akers, S., Amiri, M., Austermann, Jason E., Beall, James A., Becker, D.T., Benton, S.J., Bergman, A. S., Bock, J.J., Bond, J.R., Bryan, S.A., Chiang, H.C., Contaldi, C.R., Domagalski, R.S., Dore, O., Duff, S. M., Duivenvoorden, A.J., Eriksen, H.K., Farhang, M., Filippini, J. P., Fissel, L.M., Fraisse, A.A., Freese, K., Galloway, M., Gambrel, A. E., Gandilo, N.N., Ganga, K., Grigorian, A., Gualtieri, R, Gudmundsson, J.E., Halpern, M., Hartley, J., Hasselfield, M., Hilton, G., Holmes, W., Hristov, V.V., Huang, Z., Hubmayr, Johannes, Irwin, K.D., Jones, W.C., Kahn, A., Kuo, C.L., Kermish, Z.D., Lennox, A., Leung, J. S.-Y., Megerian, K., Reintsema, C., Li, S., Mason, P.V., Runyan, M. C., Moncelsi, L., Morford, T.A., Nagy, J.M., Nie, R., Mocanu, L. M., Padilla, I.L., Netterfield, C. B., Osherson, B., Rahlin, A.S., Redmond, S., Turner, A. D., Romualdez, L.J., Nolta, M., Ruhl, J.E., Shariff, J.A., Shiu, C., Soler, J.D., Song, X., Trangsrud, A., Thommesen, H., Tucker, C., Tucker, R.S., Ullom, Joel, van der List, J.F., Van Lanen, Jeff, Vissers, M. R., Weber, A. C., Wen, S., Wehus, I.K., Wiebe, D.V., Young, E.Y., Zmuidzinas, Jonas, Gao, Jian-Rong, Shaw, E. C., Ade, P. A. R., Akers, S., Amiri, M., Austermann, Jason E., Beall, James A., Becker, D.T., Benton, S.J., Bergman, A. S., Bock, J.J., Bond, J.R., Bryan, S.A., Chiang, H.C., Contaldi, C.R., Domagalski, R.S., Dore, O., Duff, S. M., Duivenvoorden, A.J., Eriksen, H.K., Farhang, M., Filippini, J. P., Fissel, L.M., Fraisse, A.A., Freese, K., Galloway, M., Gambrel, A. E., Gandilo, N.N., Ganga, K., Grigorian, A., Gualtieri, R, Gudmundsson, J.E., Halpern, M., Hartley, J., Hasselfield, M., Hilton, G., Holmes, W., Hristov, V.V., Huang, Z., Hubmayr, Johannes, Irwin, K.D., Jones, W.C., Kahn, A., Kuo, C.L., Kermish, Z.D., Lennox, A., Leung, J. S.-Y., Megerian, K., Reintsema, C., Li, S., Mason, P.V., Runyan, M. C., Moncelsi, L., Morford, T.A., Nagy, J.M., Nie, R., Mocanu, L. M., Padilla, I.L., Netterfield, C. B., Osherson, B., Rahlin, A.S., Redmond, S., Turner, A. D., Romualdez, L.J., Nolta, M., Ruhl, J.E., Shariff, J.A., Shiu, C., Soler, J.D., Song, X., Trangsrud, A., Thommesen, H., Tucker, C., Tucker, R.S., Ullom, Joel, van der List, J.F., Van Lanen, Jeff, Vissers, M. R., Weber, A. C., Wen, S., Wehus, I.K., Wiebe, D.V., and Young, E.Y.

Abstract

In this work we describe upgrades to the Spider balloon-borne telescope in preparation for its second flight, currently planned for December 2021. The Spider instrument is optimized to search for a primordial B-mode polarization signature in the cosmic microwave background at degree angular scales. During its first flight in 2015, Spider mapped ~10% of the sky at 95 and 150 GHz. The payload for the second Antarctic flight will incorporate three new 280 GHz receivers alongside three refurbished 95- and 150 GHz receivers from Spider's first flight. In this work we discuss the design and characterization of these new receivers, which employ over 1500 feedhorn-coupled transition-edge sensors. We describe pre-flight laboratory measurements of detector properties, and the optical performance of completed receivers. These receivers will map a wide area of the sky at 280 GHz, providing new information on polarized Galactic dust emission that will help to separate it from the cosmological signal.

21. Assertive community treatment for psychiatric patients with frequent hospitalisation.

Author

Lee CC, Liem SK, Leung JS, Wong K, Yuen SK, Lee WL, Lo WL, and Yip NH

Subjects
Adolescent, Adult, Brief Psychiatric Rating Scale, Female, Follow-Up Studies, Hospitalization, Humans, Length of Stay, Male, Middle Aged, Quality of Life, Treatment Outcome, Young Adult, Community Mental Health Services, Mental Disorders diagnosis, Patient Readmission statistics & numerical data
Published
2015

Catalog

Books, media, physical & digital resources
See catalog results