Publications (55)
Advanced ACTPol Cryogenic Detector Arrays and Readout
S. W. Henderson, R. Allison, J. Austermann +54
Advanced ACTPol is a polarization-sensitive upgrade for the 6 m aperture Atacama Cosmology Telescope (ACT), adding new frequencies and increasing sensitivity over the previous ACTP…
Weak-Lensing Mass Calibration of the Atacama Cosmology Telescope Equatorial Sunyaev-Zeldovich Cluster Sample with the Canada-France-Hawaii Telescope Stripe 82 Survey
N. Battaglia, A. Leauthaud, H. Miyatake +39
Mass calibration uncertainty is the largest systematic effect for using clusters of galaxies to constrain cosmological parameters. We present weak lensing mass measurements from th…
Antenna-coupled TES Bolometer Arrays for BICEP2/Keck and SPIDER
A. Orlando, R. W Aikin, M. Amiri +28
BICEP2/Keck and SPIDER are cosmic microwave background (CMB) polarimeters targeting the B-mode polarization induced by primordial gravitational waves from inflation. They will be u…
A Simulation-Based Method for Correcting Mode Coupling in CMB Angular Power Spectra
J. S. -Y. Leung, J. Hartley, J. M. Nagy +67
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 ang…
SPIDER: CMB polarimetry from the edge of space
R. Gualtieri, J. P. Filippini, P. A. R. Ade +61
SPIDER is a balloon-borne instrument designed to map the polarization of the millimeter-wave sky at large angular scales. SPIDER targets the B-mode signature of primordial gravitat…
The Atacama Cosmology Telescope: likelihood for small-scale CMB data
J. Dunkley, E. Calabrese, J. Sievers +32
The Atacama Cosmology Telescope has measured the angular power spectra of microwave fluctuations to arcminute scales at frequencies of 148 and 218 GHz, from three seasons of data.…
BICEP2 II: Experiment and Three-Year Data Set
BICEP2 Collaboration, P. A. R Ade, R. W. Aikin +49
We report on the design and performance of the BICEP2 instrument and on its three-year data set. BICEP2 was designed to measure the polarization of the cosmic microwave background…
Attitude determination for balloon-borne experiments
N. N. Gandilo, P. A. R. Ade, M. Amiri +64
An attitude determination system for balloon-borne experiments is presented. The system provides pointing information in azimuth and elevation for instruments flying on stratospher…
The Atacama Cosmology Telescope: A Catalog of > 4000 Sunyaev-Zel'dovich Galaxy Clusters
M. Hilton, C. Sifón, S. Naess +146
We present a catalog of 4195 optically confirmed Sunyaev-Zel'dovich (SZ) selected galaxy clusters detected with signal-to-noise > 4 in 13,211 deg of sky surveyed by the Atacama…
PACT I: Combining ACT and Planck data for optimal detection of tSZ signal
N. Aghanim, M. Douspis, G. Hurier +8
We present the optimal reconstruction of the thermal Sunyaev-Zel'dovich (tSZ) effect signal based on the combination of a heterogeneous dataset consisting of ACT and Planck data, w…
The Simons Observatory: forecasted constraints on primordial gravitational waves with the expanded array of Small Aperture Telescopes
The Simons Observatory Collaboration, I. Abril-Cabezas, S. Adachi +479
We present updated forecasts for the scientific performance of the degree-scale (0.5 deg FWHM at 93 GHz), deep-field survey to be conducted by the Simons Observatory (SO). By 2027,…
The Keck Array: a pulse tube cooled CMB polarimeter
C. D. Sheehy, P. A. R. Ade, R. W. Aikin +41
The Keck Array is a cosmic microwave background (CMB) polarimeter that will begin observing from the South Pole in late 2010. The initial deployment will consist of three telescope…
Design and construction of a carbon fiber gondola for the SPIDER balloon-borne telescope
J. D. Soler, P. A. R. Ade, M. Amiri +44
We introduce the light-weight carbon fiber and aluminum gondola designed for the SPIDER balloon-borne telescope. SPIDER is designed to measure the polarization of the Cosmic Microw…
A Joint Analysis of BICEP2/Keck Array and Planck Data
BICEP2/Keck, Planck Collaborations, : +276
We report the results of a joint analysis of data from BICEP2/Keck Array and Planck. BICEP2 and Keck Array have observed the same approximately 400 deg patch of sky centered on…
Antenna-coupled TES bolometers for the Keck Array, Spider, and Polar-1
R. O'Brient, P. A. R. Ade, Z. Ahmed +50
Between the BICEP2 and Keck Array experiments, we have deployed over 1500 dual polarized antenna coupled bolometers to map the Cosmic Microwave Background's polarization. We have b…
In-flight gain monitoring of SPIDER's transition-edge sensor arrays
J. P. Filippini, A. E. Gambrel, A. S. Rahlin +67
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 sens…
Design and pre-flight performance of SPIDER 280 GHz receivers
E. C. Shaw, P. A. R. Ade, S. Akers +79
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 optimize…
The Effects of Bandpass Variations on Foreground Removal Forecasts for Future CMB Experiments
J. T. Ward, D. Alonso, J. Errard +2
Time-dependent and systematic variations in band gain and central frequencies of instruments used to study the Cosmic Microwave Background are important factors in the data-to-map…
Optimization and sensitivity of the Keck Array
S. Kernasovskiy, P. A. R. Ade, R. W. Aikin +41
The Keck Array (SPUD) began observing the cosmic microwave background's polarization in the winter of 2011 at the South Pole. The Keck Array follows the success of the predecessor…
The Atacama Cosmology Telescope: Sunyaev Zel'dovich Selected Galaxy Clusters at 148 GHz in the 2008 Survey
T. A. Marriage, V. Acquaviva, P. A. R. Ade +68
We report on twenty-three clusters detected blindly as Sunyaev-Zel'dovich (SZ) decrements in a 148 GHz, 455 square-degree map of the southern sky made with data from the Atacama Co…
Design and Deployment of a Multichroic Polarimeter Array on the Atacama Cosmology Telescope
R. Datta, J. Austermann, J. A. Beall +28
We present the design and the preliminary on sky performance with respect to beams and pass-bands of a multichroic polarimeter array covering the 90 and 146 GHz Cosmic Microwave Ba…
A Constraint on Primordial -Modes from the First Flight of the SPIDER Balloon-Borne Telescope
SPIDER Collaboration, P. A. R. Ade, M. Amiri +68
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 b…
The Atacama Cosmology Telescope: Extragalactic Sources at 148 GHz in the 2008 Survey
T. A. Marriage, J. B. Juin, Y. -T. Lin +66
We report on extragalactic sources detected in a 455 square-degree map of the southern sky made with data at a frequency of 148 GHz from the Atacama Cosmology Telescope 2008 observ…
The Atacama Cosmology Telescope: A Measurement of the 600< ell <8000 Cosmic Microwave Background Power Spectrum at 148 GHz
J. W. Fowler, V. Acquaviva, P. A. R. Ade +69
We present a measurement of the angular power spectrum of the cosmic microwave background (CMB) radiation observed at 148 GHz. The measurement uses maps with 1.4' angular resolutio…
The Atacama B-Mode Search: CMB Polarimetry with Transition-Edge-Sensor Bolometers
T. Essinger-Hileman, J. W. Appel, J. A. Beall +15
The Atacama B-mode Search (ABS) experiment is a 145 GHz polarimeter designed to measure the B-mode polarization of the Cosmic Microwave Background (CMB) at large angular scales. Th…
Thermal architecture for the SPIDER flight cryostat
J. E. Gudmundsson, P. A. R. Ade, M. Amiri +40
We describe the cryogenic system for SPIDER, a balloon-borne microwave polarimeter that will map 8% of the sky with degree-scale angular resolution. The system consists of a 1284 L…
The Atacama Cosmology Telescope: The Receiver and Instrumentation
D. S. Swetz, P. A. R. Ade, M. Amiri +38
The Atacama Cosmology Telescope was designed to measure small-scale anisotropies in the Cosmic Microwave Background and detect galaxy clusters through the Sunyaev-Zel'dovich effect…
Modeling beam chromaticity for high-resolution CMB analyses
S. Giardiello, A. J. Duivenvoorden, E. Calabrese +7
We investigate the impact of beam chromaticity, i.e., the frequency dependence of the beam window function, on cosmological and astrophysical parameter constraints from CMB power s…
Detection of the pairwise kinematic Sunyaev-Zel'dovich effect with BOSS DR11 and the Atacama Cosmology Telescope
F. De Bernardis, S. Aiola, E. M. Vavagiakis +55
We present a new measurement of the kinematic Sunyaev-Zeldovich effect using data from the Atacama Cosmology Telescope (ACT) and the Baryon Oscillation Spectroscopic Survey (BOSS).…
SPIDER: a balloon-borne CMB polarimeter for large angular scales
J. P. Filippini, P. A. R. Ade, M. Amiri +41
We describe SPIDER, a balloon-borne instrument to map the polarization of the millimeter-wave sky with degree angular resolution. Spider consists of six monochromatic refracting te…
280 GHz Focal Plane Unit Design and Characterization for the SPIDER-2 Suborbital Polarimeter
A. S. Bergman, P. A. R. Ade, S. Akers +76
We describe the construction and characterization of the 280 GHz bolometric focal plane units (FPUs) to be deployed on the second flight of the balloon-borne SPIDER instrument. The…
ACTPol: A polarization-sensitive receiver for the Atacama Cosmology Telescope
M. D. Niemack, P. A. R. Ade, J. Aguirre +39
The six-meter Atacama Cosmology Telescope (ACT) in Chile was built to measure the cosmic microwave background (CMB) at arcminute angular scales. We are building a new polarization…
The Simons Observatory: Science Goals and Forecasts for the Enhanced Large Aperture Telescope
The Simons Observatory Collaboration, M. Abitbol, I. Abril-Cabezas +419
We describe updated scientific goals for the wide-field, millimeter-wave survey that will be produced by the Simons Observatory (SO). Significant upgrades to the 6-meter SO Large A…
Design and performance of the Spider instrument
M. C. Runyan, P. A. R. Ade, M. Amiri +40
Here we describe the design and performance of the Spider instrument. Spider is a balloon-borne cosmic microwave background polarization imager that will map part of the sky at 90,…
BICEP2 III: Instrumental Systematics
BICEP2 Collaboration, P. A. R. Ade, R. W. Aikin +42
In a companion paper we have reported a detection of degree scale -mode polarization at 150 GHz by the BICEP2 experiment. Here we provide a detailed study of potential i…
Analysis of Polarized Dust Emission Using Data from the First Flight of SPIDER
SPIDER Collaboration, P. A. R. Ade, M. Amiri +67
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 separ…
SPIDER: Probing the Early Universe with a Suborbital Polarimeter
A. A. Fraisse, P. A. R. Ade, M. Amiri +43
We evaluate the ability of SPIDER, a balloon-borne polarimeter, to detect a divergence-free polarization pattern ("B-modes") in the Cosmic Microwave Background (CMB). In the inflat…
A New Limit on CMB Circular Polarization from SPIDER
J. M. Nagy, P. A. R. Ade, M. Amiri +58
We present a new upper limit on CMB circular polarization from the 2015 flight of SPIDER, a balloon-borne telescope designed to search for -mode linear polarization from cosmic…
Antenna-coupled TES bolometers used in BICEP2, Keck array, and SPIDER
P. A. R. Ade, R. W. Aikin, M. Amiri +64
We have developed antenna-coupled transition-edge sensor (TES) bolometers for a wide range of cosmic microwave background (CMB) polarimetry experiments, including BICEP2, Keck Arra…
Spider Optimization II: Optical, Magnetic and Foreground Effects
D. T. O'Dea, P. A. R. Ade, M. Amiri +43
Spider is a balloon-borne instrument designed to map the polarization of the cosmic microwave background (CMB) with degree-scale resolution over a large fraction of the sky. Spider…
The Atacama Cosmology Telescope: DR6 Sunyaev-Zel'dovich Selected Galaxy Clusters Catalog
HSC Collaboration, M. Aguena, S. Aiola +98
We present the results of a search for galaxy clusters in the Atacama Cosmology Telescope (ACT) Data Release 6 (DR6) microwave sky maps covering 16293 square degrees in three frequ…
Survey strategy optimization for the Atacama Cosmology Telescope
F. De Bernardis, J. R. Stevens, M. Hasselfield +34
In recent years there have been significant improvements in the sensitivity and the angular resolution of the instruments dedicated to the observation of the Cosmic Microwave Backg…
BICEP2 and Keck Array operational overview and status of observations
R. W. Ogburn, P. A. R. Ade, R. W. Aikin +50
The BICEP2 and Keck Array experiments are designed to measure the polarization of the cosmic microwave background (CMB) on angular scales of 2-4 degrees (l=50-100). This is the reg…
In-Flight Performance of Spider's 280 GHz Receivers
Elle C. Shaw, P. A. R. Ade, S. Akers +84
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…
BICEP2/Keck Array IV: Optical Characterization and Performance of the BICEP2 and Keck Array Experiments
The BICEP2, Keck Array Collaborations, : +51
BICEP2 and the Keck Array are polarization-sensitive microwave telescopes that observe the cosmic microwave background (CMB) from the South Pole at degree angular scales in search…
The Thermal Design, Characterization, and Performance of the SPIDER Long-Duration Balloon Cryostat
J. E. Gudmundsson, P. A. R. Ade, M. Amiri +40
We describe the SPIDER flight cryostat, which is designed to cool six millimeter-wavelength telescopes during an Antarctic long-duration balloon flight. The cryostat, one of the la…
The Atacama Cosmology Telescope (ACT): Beam Profiles and First SZ Cluster Maps
A. D. Hincks, V. Acquaviva, P. Ade +69
The Atacama Cosmology Telescope (ACT) is currently observing the cosmic microwave background with arcminute resolution at 148 GHz, 218 GHz, and 277 GHz. In this paper, we present A…
Critical Boundary Sine-Gordon Revisited
M. Hasselfield, Taejin Lee, G. W. Semenoff +1
We revisit the exact solution of the two space-time dimensional quantum field theory of a free massless boson with a periodic boundary interaction and self-dual period. We analyze…
BICEP2 / Keck Array V: Measurements of B-mode Polarization at Degree Angular Scales and 150 GHz by the Keck Array
The BICEP2, Keck Array Collaborations, : +59
The Keck Array is a system of cosmic microwave background (CMB) polarimeters, each similar to the BICEP2 experiment. In this paper we report results from the 2012 and 2013 observin…
Particle response of antenna-coupled TES arrays: results from SPIDER and the lab
B. Osherson, J. P. Filippini, J. Fu +45
Future mm-wave and sub-mm space missions will employ large arrays of multiplexed Transition Edge Sensor (TES) bolometers. Such instruments must contend with the high flux of cosmic…
BLASTbus electronics: general-purpose readout and control for balloon-borne experiments
S. J. Benton, P. A. Ade, M. Amiri +66
We present the second generation BLASTbus electronics. The primary purposes of this system are detector readout, attitude control, and cryogenic housekeeping, for balloon-borne tel…
The Atacama Cosmology Telescope: Cosmological Parameters from the 2008 Power Spectra
J. Dunkley, R. Hlozek, J. Sievers +64
We present cosmological parameters derived from the angular power spectrum of the cosmic microwave background (CMB) radiation observed at 148 GHz and 218 GHz over 296 deg^2 with th…
BICEP2 I: Detection Of B-mode Polarization at Degree Angular Scales
P. A. R Ade, R. W. Aikin, D. Barkats +44
(abridged for arXiv) We report results from the BICEP2 experiment, a cosmic microwave background (CMB) polarimeter specifically designed to search for the signal of inflationary gr…
The Atacama Cosmology Telescope: The polarization-sensitive ACTPol instrument
R. J. Thornton, P. A. R. Ade, S. Aiola +53
The Atacama Cosmology Telescope (ACT) is designed to make high angular resolution measurements of anisotropies in the Cosmic Microwave Background (CMB) at millimeter wavelengths. W…
The XFaster Power Spectrum and Likelihood Estimator for the Analysis of Cosmic Microwave Background Maps
A. E. Gambrel, A. S. Rahlin, X. Song +64
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. X…