Related papers: Cosmology Large Angular Scale Surveyor (CLASS): 90…

The Low Frequency Instrument in the ESA Planck mission

Measurements of the cosmic microwave background (CMB) allow high precision observation of the cosmic plasma at redshift z~1100. After the success of the NASA satellite COBE, that in 1992 provided the first detection of the CMB anisotropy,…

Astrophysics · Physics 2009-11-10 A. Mennella , M. Bersanelli , B. Cappellini , D. Maino , P. Platania , S. Garavaglia , R. C. Butler , N. Mandolesi F. Pasian , O. D'arcangelo , A. Simonetto , C. Sozzi

First Measurement of the Cross-Correlation of CMB Lensing and Galaxy Lensing

We measure the cross-correlation of cosmic microwave background lensing convergence maps derived from Atacama Cosmology Telescope data with galaxy lensing convergence maps as measured by the Canada-France-Hawaii Telescope Stripe 82 Survey.…

Cosmology and Nongalactic Astrophysics · Physics 2015-07-15 Nick Hand , Alexie Leauthaud , Sudeep Das , Blake D. Sherwin , Graeme E. Addison , J. Richard Bond , Erminia Calabrese , Aldée Charbonnier , Mark J. Devlin , Joanna Dunkley , Thomas Erben , Amir Hajian , Mark Halpern , Joachim Harnois-Déraps , Catherine Heymans , Hendrik Hildebrandt , Adam D. Hincks , Jean-Paul Kneib , Arthur Kosowsky , Martin Makler , Lance Miller , Kavilan Moodley , Bruno Moraes , Michael D. Niemack , Lyman A. Page , Bruce Partridge , Neelima Sehgal , Huanyuan Shan , Jonathan L. Sievers , David N. Spergel , Suzanne T. Staggs , Eric R. Switzer , James E. Taylor , Ludovic Van Waerbeke , Charlotte Welker , Edward J. Wollack

Optical modeling of systematic uncertainties in detector polarization angles for the Atacama Cosmology Telescope

We present an estimate of the Atacama Cosmology Telescope (ACT) detector polarization angle systematic uncertainty from optics perturbation analysis using polarization-sensitive ray tracing in CODE V optical design software. Uncertainties…

Instrumentation and Methods for Astrophysics · Physics 2024-08-02 Colin C. Murphy , Steve K. Choi , Rahul Datta , Mark J. Devlin , Matthew Hasselfield , Brian J. Koopman , Jeff McMahon , Sigurd Naess , Michael D. Niemack , Lyman A. Page , Suzanne T. Staggs , Robert Thornton , Edward J. Wollack

High-Efficiency and Low-Noise Detectors for the Upgraded CLASS 90 GHz Focal Plane

We present the in-lab and on-sky performance for the upgraded 90 GHz focal plane of the Cosmology Large Angular Scale Surveyor (CLASS), which had four of its seven detector wafers updated during the austral winter of 2022. The update aimed…

Instrumentation and Methods for Astrophysics · Physics 2025-07-30 Carolina Núñez , John W. Appel , Rahul Datta , Charles L. Bennett , Michael K. Brewer , Sarah Marie Bruno , Ricardo Bustos , David T. Chuss , Nick Costen , Jullianna Denes Couto , Sumit Dahal , Kevin L. Denis , Joseph R. Eimer , Thomas Essinger-Hileman , Jeffrey Iuliano , Yunyang Li , Tobias A. Marriage , Jennette Mateo , Matthew A. Petroff , Rui Shi , Karwan Rostem , Deniz A. N. Valle , Duncan Watts , Edward J. Wollack , Lingzhen Zeng

Planck 2018 results. VI. Cosmological parameters

We present cosmological parameter results from the final full-mission Planck measurements of the CMB anisotropies. We find good consistency with the standard spatially-flat 6-parameter $\Lambda$CDM cosmology having a power-law spectrum of…

Cosmology and Nongalactic Astrophysics · Physics 2021-08-10 Planck Collaboration , N. Aghanim , Y. Akrami , M. Ashdown , J. Aumont , C. Baccigalupi , M. Ballardini , A. J. Banday , R. B. Barreiro , N. Bartolo , S. Basak , R. Battye , K. Benabed , J. -P. Bernard , M. Bersanelli , P. Bielewicz , J. J. Bock , J. R. Bond , J. Borrill , F. R. Bouchet , F. Boulanger , M. Bucher , C. Burigana , R. C. Butler , E. Calabrese , J. -F. Cardoso , J. Carron , A. Challinor , H. C. Chiang , J. Chluba , L. P. L. Colombo , C. Combet , D. Contreras , B. P. Crill , F. Cuttaia , P. de Bernardis , G. de Zotti , J. Delabrouille , J. -M. Delouis , E. Di Valentino , J. M. Diego , O. Doré , M. Douspis , A. Ducout , X. Dupac , S. Dusini , G. Efstathiou , F. Elsner , T. A. Enßlin , H. K. Eriksen , Y. Fantaye , M. Farhang , J. Fergusson , R. Fernandez-Cobos , F. Finelli , F. Forastieri , M. Frailis , A. A. Fraisse , E. Franceschi , A. Frolov , S. Galeotta , S. Galli , K. Ganga , R. T. Génova-Santos , M. Gerbino , T. Ghosh , J. González-Nuevo , K. M. Górski , S. Gratton , A. Gruppuso , J. E. Gudmundsson , J. Hamann , W. Handley , F. K. Hansen , D. Herranz , S. R. Hildebrandt , E. Hivon , Z. Huang , A. H. Jaffe , W. C. Jones , A. Karakci , E. Keihänen , R. Keskitalo , K. Kiiveri , J. Kim , T. S. Kisner , L. Knox , N. Krachmalnicoff , M. Kunz , H. Kurki-Suonio , G. Lagache , J. -M. Lamarre , A. Lasenby , M. Lattanzi , C. R. Lawrence , M. Le Jeune , P. Lemos , J. Lesgourgues , F. Levrier , A. Lewis , M. Liguori , P. B. Lilje , M. Lilley , V. Lindholm , M. López-Caniego , P. M. Lubin , Y. -Z. Ma , J. F. Macías-Pérez , G. Maggio , D. Maino , N. Mandolesi , A. Mangilli , A. Marcos-Caballero , M. Maris , P. G. Martin , M. Martinelli , E. Martínez-González , S. Matarrese , N. Mauri , J. D. McEwen , P. R. Meinhold , A. Melchiorri , A. Mennella , M. Migliaccio , M. Millea , S. Mitra , M. -A. Miville-Deschênes , D. Molinari , L. Montier , G. Morgante , A. Moss , P. Natoli , H. U. Nørgaard-Nielsen , L. Pagano , D. Paoletti , B. Partridge , G. Patanchon , H. V. Peiris , F. Perrotta , V. Pettorino , F. Piacentini , L. Polastri , G. Polenta , J. -L. Puget , J. P. Rachen , M. Reinecke , M. Remazeilles , A. Renzi , G. Rocha , C. Rosset , G. Roudier , J. A. Rubiño-Martín , B. Ruiz-Granados , L. Salvati , M. Sandri , M. Savelainen , D. Scott , E. P. S. Shellard , C. Sirignano , G. Sirri , L. D. Spencer , R. Sunyaev , A. -S. Suur-Uski , J. A. Tauber , D. Tavagnacco , M. Tenti , L. Toffolatti , M. Tomasi , T. Trombetti , L. Valenziano , J. Valiviita , B. Van Tent , L. Vibert , P. Vielva , F. Villa , N. Vittorio , B. D. Wandelt , I. K. Wehus , M. White , S. D. M. White , A. Zacchei , A. Zonca

Pointing calibration of GroundBIRD telescope using Moon observation data

Understanding telescope pointing (i.e., line of sight) is important for observing the cosmic microwave background (CMB) and astronomical objects. The Moon is a candidate astronomical source for pointing calibration. Although the visible…

Instrumentation and Methods for Astrophysics · Physics 2024-01-19 Y. Sueno , J. J. A. Baselmans , A. H. M. Coppens , R. T Génova-Santos , M. Hattori , S. Honda , K. Karatsu , H. Kutsuma , K. Lee , T. Nagasaki , S. Oguri , C. Otani , M. Peel , J. Suzuki , O. Tajima , T. Tanaka , M. Tsujii , D. J. Thoen , E. Won

The Atacama Cosmology Telescope: Beam Measurements and the Microwave Brightness Temperatures of Uranus and Saturn

We describe the measurement of the beam profiles and window functions for the Atacama Cosmology Telescope (ACT), which operated from 2007 to 2010 with kilo-pixel bolometer arrays centered at 148, 218, and 277 GHz. Maps of Saturn are used to…

Instrumentation and Methods for Astrophysics · Physics 2015-06-15 Matthew Hasselfield , Kavilan Moodley , J. Richard Bond , Sudeep Das , Mark J. Devlin , Joanna Dunkley , Rolando Dunner , Joseph W. Fowler , Patricio Gallardo , Megan B. Gralla , Amir Hajian , Mark Halpern , Adam D. Hincks , Tobias A. Marriage , Danica Marsden , Michael D. Niemack , Michael R. Nolta , Lyman A. Page , Bruce Partridge , Benjamin L. Schmitt , Neelima Sehgal , Jon Sievers , Suzanne T. Staggs , Daniel S. Swetz , Eric R. Switzer , Edward J. Wollack

A Measurement of the Cosmic Microwave Background Gravitational Lensing Potential from 100 Square Degrees of SPTpol Data

We present a measurement of the cosmic microwave background (CMB) gravitational lensing potential using data from the first two seasons of observations with SPTpol, the polarization-sensitive receiver currently installed on the South Pole…

Cosmology and Nongalactic Astrophysics · Physics 2015-09-16 K. T. Story , D. Hanson , P. A. R. Ade , K. A. Aird , J. E. Austermann , J. A. Beall , A. N. Bender , B. A. Benson , L. E. Bleem , J. E. Carlstrom , C. L. Chang , H. C. Chiang , H-M. Cho , R. Citron , T. M. Crawford , A. T. Crites , T. de Haan , M. A. Dobbs , W. Everett , J. Gallicchio , J. Gao , E. M. George , A. Gilbert , N. W. Halverson , N. Harrington , J. W. Henning , G. C. Hilton , G. P. Holder , W. L. Holzapfel , S. Hoover , Z. Hou , J. D. Hrubes , N. Huang , J. Hubmayr , K. D. Irwin , R. Keisler , L. Knox , A. T. Lee , E. M. Leitch , D. Li , C. Liang , D. Luong-Van , J. J. McMahon , J. Mehl , S. S. Meyer , L. Mocanu , T. E. Montroy , T. Natoli , J. P. Nibarger , V. Novosad , S. Padin , C. Pryke , C. L. Reichardt , J. E. Ruhl , B. R. Saliwanchik , J. T. Sayre , K. K. Schaffer , G. Smecher , A. A. Stark , C. Tucker , K. Vanderlinde , J. D. Vieira , G. Wang , N. Whitehorn , V. Yefremenko , O. Zahn

Planck 2015 results. XV. Gravitational lensing

We present the most significant measurement of the cosmic microwave background (CMB) lensing potential to date (at a level of 40 sigma), using temperature and polarization data from the Planck 2015 full-mission release. Using a…

Cosmology and Nongalactic Astrophysics · Physics 2016-09-23 Planck Collaboration , P. A. R. Ade , N. Aghanim , M. Arnaud , M. Ashdown , J. Aumont , C. Baccigalupi , A. J. Banday , R. B. Barreiro , J. G. Bartlett , N. Bartolo , S. Basak , E. Battaner , K. Benabed , A. Benoît , A. Benoit-Lévy , J. -P. Bernard , M. Bersanelli , P. Bielewicz , J. J. Bock , A. Bonaldi , L. Bonavera , J. R. Bond , J. Borrill , F. R. Bouchet , F. Boulanger , M. Bucher , C. Burigana , R. C. Butler , E. Calabrese , J. -F. Cardoso , A. Catalano , A. Challinor , A. Chamballu , H. C. Chiang , P. R. Christensen , S. Church , D. L. Clements , S. Colombi , L. P. L. Colombo , C. Combet , F. Couchot , A. Coulais , B. P. Crill , A. Curto , F. Cuttaia , L. Danese , R. D. Davies , R. J. Davis , P. de Bernardis , A. de Rosa , G. de Zotti , J. Delabrouille , F. -X. Désert , J. M. Diego , H. Dole , S. Donzelli , O. Doré , M. Douspis , A. Ducout , J. Dunkley , X. Dupac , G. Efstathiou , F. Elsner , T. A. Enßlin , H. K. Eriksen , J. Fergusson , F. Finelli , O. Forni , M. Frailis , A. A. Fraisse , E. Franceschi , A. Frejsel , S. Galeotta , S. Galli , K. Ganga , M. Giard , Y. Giraud-Héraud , E. Gjerløw , J. González-Nuevo , K. M. Górski , S. Gratton , A. Gregorio , A. Gruppuso , J. E. Gudmundsson , F. K. Hansen , D. Hanson , D. L. Harrison , S. Henrot-Versillé , C. Hernández-Monteagudo , D. Herranz , S. R. Hildebrandt , E. Hivon , M. Hobson , W. A. Holmes , A. Hornstrup , W. Hovest , K. M. Huffenberger , G. Hurier , A. H. Jaffe , T. R. Jaffe , W. C. Jones , M. Juvela , E. Keihänen , R. Keskitalo , T. S. Kisner , R. Kneissl , J. Knoche , M. Kunz , H. Kurki-Suonio , G. Lagache , A. Lähteenmäki , J. -M. Lamarre , A. Lasenby , M. Lattanzi , C. R. Lawrence , R. Leonardi , J. Lesgourgues , F. Levrier , A. Lewis , M. Liguori , P. B. Lilje , M. Linden-Vørnle , M. López-Caniego , P. M. Lubin , J. F. Macías-Pérez , G. Maggio , D. Maino , N. Mandolesi , A. Mangilli , M. Maris , P. G. Martin , E. Martínez-González , S. Masi , S. Matarrese , P. McGehee , P. R. Meinhold , A. Melchiorri , L. Mendes , A. Mennella , M. Migliaccio , S. Mitra , M. -A. Miville-Deschênes , A. Moneti , L. Montier , G. Morgante , D. Mortlock , A. Moss , D. Munshi , J. A. Murphy , P. Naselsky , F. Nati , P. Natoli , C. B. Netterfield , H. U. Nørgaard-Nielsen , F. Noviello , D. Novikov , I. Novikov , C. A. Oxborrow , F. Paci , L. Pagano , F. Pajot , D. Paoletti , F. Pasian , G. Patanchon , O. Perdereau , L. Perotto , F. Perrotta , V. Pettorino , F. Piacentini , M. Piat , E. Pierpaoli , D. Pietrobon , S. Plaszczynski , E. Pointecouteau , G. Polenta , L. Popa , G. W. Pratt , G. Prézeau , S. Prunet , J. -L. Puget , J. P. Rachen , W. T. Reach , R. Rebolo , M. Reinecke , M. Remazeilles , C. Renault , A. Renzi , I. Ristorcelli , G. Rocha , C. Rosset , M. Rossetti , G. Roudier , M. Rowan-Robinson , J. A. Rubiño-Martín , B. Rusholme , M. Sandri , D. Santos , M. Savelainen , G. Savini , D. Scott , M. D. Seiffert , E. P. S. Shellard , L. D. Spencer , V. Stolyarov , R. Stompor , R. Sudiwala , R. Sunyaev , D. Sutton , A. -S. Suur-Uski , J. -F. Sygnet , J. A. Tauber , L. Terenzi , L. Toffolatti , M. Tomasi , M. Tristram , M. Tucci , J. Tuovinen , L. Valenziano , J. Valiviita , B. Van Tent , P. Vielva , F. Villa , L. A. Wade , B. D. Wandelt , I. K. Wehus , M. White , D. Yvon , A. Zacchei , A. Zonca

The Simons Observatory: Project Overview

The Simons Observatory (SO) will make precision temperature and polarization measurements of the cosmic microwave background (CMB) over angular scales between 1 arcminute and tens of degrees using over 60,000 detectors and sampling…

Instrumentation and Methods for Astrophysics · Physics 2018-10-08 Nicholas Galitzki

COSMOSOMAS Observations of the CMB and Galactic Foregrounds at 11 GHz: Evidence for anomalous microwave emission at high Galactic Latitude

We present observations with the new 11 GHz radiometer of the COSMOSOMAS experiment at the Teide Observatory (Tenerife). The sky region between 0 deg <= RA <= 360 deg and 26 deg <= DEC 49 deg (ca. 6500 square degrees) was observed with an…

Astrophysics · Physics 2009-11-13 S. R. Hildebrandt , R. Rebolo , J. A. Rubiño-Martín , R. A. Watson , C. M. Gutiérrez , R. J. Hoyland , E. S. Battistelli

PROTOCALC, A W-band polarized calibrator for CMB Telescopes: application to Simons Observatory and CLASS

Current- and next-generation Cosmic Microwave Background (CMB) experiments will measure polarization anisotropies with unprecedented sensitivities. The need for high precision in these measurements underscores the importance of gaining a…

Instrumentation and Methods for Astrophysics · Physics 2025-06-02 Gabriele Coppi , Nadia Dachlythra , Federico Nati , Rolando Dünner-Planella , Alexandre E. Adler , Josquin Errard , Nicholas Galitzki , Yunyang Li , Matthew A. Petroff , Sara M. Simon , Ema Tsang King Sang , Amalia Villarrubia Aguilar , Edward J. Wollack , Mario Zannoni

A Measurement of the Damping Tail of the Cosmic Microwave Background Power Spectrum with the South Pole Telescope

We present a measurement of the angular power spectrum of the cosmic microwave background (CMB) using data from the South Pole Telescope (SPT). The data consist of 790 square degrees of sky observed at 150 GHz during 2008 and 2009. Here we…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 R. Keisler , C. L. Reichardt , K. A. Aird , B. A. Benson , L. E. Bleem , J. E. Carlstrom , C. L. Chang , H. M. Cho , T. M. Crawford , A. T. Crites , T. de Haan , M. A. Dobbs , J. Dudley , E. M. George , N. W. Halverson , G. P. Holder , W. L. Holzapfel , S. Hoover , Z. Hou , J. D. Hrubes , M. Joy , L. Knox , A. T. Lee , E. M. Leitch , M. Lueker , D. Luong-Van , J. J. McMahon , J. Mehl , S. S. Meyer , M. Millea , J. J. Mohr , T. E. Montroy , T. Natoli , S. Padin , T. Plagge , C. Pryke , J. E. Ruhl , K. K. Schaffer , L. Shaw , E. Shirokoff , H. G. Spieler , Z. Staniszewski , A. A. Stark , K. Story , A. van Engelen , K. Vanderlinde , J. D. Vieira , R. Williamson , O. Zahn

Measuring the Largest Angular Scale CMB B-mode Polarization with Galactic Foregrounds on a Cut Sky

We consider the effectiveness of foreground cleaning in the recovery of Cosmic Microwave Background (CMB) polarization sourced by gravitational waves for tensor-to-scalar ratios in the range $0<r<0.1$. Using the planned survey area,…

Cosmology and Nongalactic Astrophysics · Physics 2016-11-03 Duncan J. Watts , David Larson , Tobias A. Marriage , Maximilian H. Abitbol , John W. Appel , Charles L. Bennett , David T. Chuss , Joseph R. Eimer , Thomas Essinger-Hileman , Nathan J. Miller , Karwan Rostem , Edward J. Wollack

Large Angular Scale Polarization of the Cosmic Microwave Background and the Feasibility of its Detection

In addition to its spectrum and temperature anisotropy, the 2.7K Cosmic Microwave Background is also expected to exhibit a low level of polarization. The spatial power spectrum of the polarization can provide details about the formation of…

Astrophysics · Physics 2009-10-30 Brian Keating , Peter Timbie , Alexander Polnarev , Julia Steinberger

Degree-Scale CMB Polarization Measurements from Three Years of BICEP1 Data

BICEP1 is a millimeter-wavelength telescope designed specifically to measure the inflationary B-mode polarization of the Cosmic Microwave Background (CMB) at degree angular scales. We present results from an analysis of the data acquired…

Cosmology and Nongalactic Astrophysics · Physics 2015-04-24 BICEP1 Collaboration , D. Barkats , R. Aikin , C. Bischoff , I. Buder , J. P. Kaufman , B. G. Keating , J. M. Kovac , M. Su , P. A. R. Ade , J. O. Battle , E. M. Bierman , J. J. Bock , H. C. Chiang , C. D. Dowell , L. Duband , J. Filippini , E. F. Hivon , W. L. Holzapfel , V. V. Hristov , W. C. Jones , C. L. Kuo , E. M. Leitch , P. V. Mason , T. Matsumura , H. T. Nguyen , N. Ponthieu , C. Pryke , S. Richter , G. Rocha , C. Sheehy , S. S. Kernasovskiy , Y. D. Takahashi , J. E. Tolan , K. W. Yoon

A Measurement of the Cosmic Microwave Background Lensing Potential and Power Spectrum from 500 deg$^2$ of SPTpol Temperature and Polarization Data

We present a measurement of the cosmic microwave background (CMB) lensing potential using 500 deg$^2$ of 150 GHz data from the SPTpol receiver on the South Pole Telescope. The lensing potential is reconstructed with signal-to-noise per mode…

Cosmology and Nongalactic Astrophysics · Physics 2019-10-23 W. L. K. Wu , L. M. Mocanu , P. A. R. Ade , A. J. Anderson , J. E. Austermann , J. S. Avva , J. A. Beall , A. N. Bender , B. A. Benson , F. Bianchini , L. E. Bleem , J. E. Carlstrom , C. L. Chang , H. C. Chiang , R. Citron , C. Corbett Moran , T. M. Crawford , A. T. Crites , T. de Haan , M. A. Dobbs , W. Everett , J. Gallicchio , E. M. George , A. Gilbert , N. Gupta , N. W. Halverson , N. Harrington , J. W. Henning , G. C. Hilton , G. P. Holder , W. L. Holzapfel , Z. Hou , J. D. Hrubes , N. Huang , J. Hubmayr , K. D. Irwin , L. Knox , A. T. Lee , D. Li , A. Lowitz , A. Manzotti , J. J. McMahon , S. S. Meyer , M. Millea , J. Montgomery , A. Nadolski , T. Natoli , J. P. Nibarger , G. I. Noble , V. Novosad , Y. Omori , S. Padin , S. Patil , C. Pryke , C. L. Reichardt , J. E. Ruhl , B. R. Saliwanchik , J. T. Sayre , K. K. Schaffer , C. Sievers , G. Simard , G. Smecher , A. A. Stark , K. T. Story , C. Tucker , K. Vanderlinde , T. Veach , J. D. Vieira , G. Wang , N. Whitehorn , V. Yefremenko

Current Status and Perspectives of Cosmic Microwave Background Observations

Measurements of the cosmic microwave background (CMB) radiation provide a unique opportunity for a direct study of the primordial cosmic plasma at redshift z ~1000. The angular power spectra of temperature and polarisation fluctuations are…

Astrophysics · Physics 2009-11-10 Marco Bersanelli , Davide Maino , Aniello Mennella

The Atacama Cosmology Telescope: $B$-mode delensing with DR6 data and external tracers of large-scale structure

Large-scale $B$-mode polarization of the cosmic microwave background (CMB) is a prime target for current and future experiments in search of primordial gravitational waves (PGW). With increasingly sensitive instruments being deployed,…

Cosmology and Nongalactic Astrophysics · Physics 2025-12-01 Emilie Hertig , Antón Baleato Lizancos , Frank J. Qu , J. Richard Bond , Erminia Calabrese , Anthony Challinor , Mark J. Devlin , Jo Dunkley , Thibaut Louis , Mathew S. Madhavacheril , Toshiya Namikawa , Lyman A. Page , Neelima Sehgal , Blake Sherwin , Cristóbal Sifón , Suzanne T. Staggs , Edward J. Wollack

Systematic effects from an ambient-temperature, continuously-rotating half-wave plate

We present an evaluation of systematic effects associated with a continuously-rotating, ambient-temperature half-wave plate (HWP) based on two seasons of data from the Atacama B-Mode Search (ABS) experiment located in the Atacama Desert of…

Instrumentation and Methods for Astrophysics · Physics 2016-10-12 T. Essinger-Hileman , A. Kusaka , J. W. Appel , S. K. Choi , K. Crowley , S. P. Ho , N. Jarosik , L. A. Page , L. P. Parker , S. Raghunathan , S. M. Simon , S. T. Staggs , K. Visnjic