Related papers: Self-Calibration of BICEP1 Three-Year Data and Con…

BICEP/Keck XVIII: Measurement of BICEP3 polarization angles and consequences for constraining cosmic birefringence and inflation

We use a custom-made calibrator to measure individual detectors' polarization angles of BICEP3, a small aperture telescope observing the cosmic microwave background (CMB) at 95GHz from the South Pole. We describe our calibration strategy…

Cosmology and Nongalactic Astrophysics · Physics 2025-02-19 Keck Collaboration , P. A. R. Ade , Z. Ahmed , M. Amiri , D. Barkats , R. Basu Thakur , C. A. Bischoff , D. Beck , J. J. Bock , H. Boenish , V. Buza , J. R. Cheshire , J. Connors , J. Cornelison , M. Crumrine , A. J. Cukierman , E. Denison , L. Duband , M. Eiben , B. D. Elwood , S. Fatigoni , J. P. Filippini , A. Fortes , M. Gao , C. Giannakopoulos , N. Goeckner-Wald , D. C. Goldfinger , J. A. Grayson , A. Greathouse , P. K. Grimes , G. Hall , G. Halal , M. Halpern , E. Hand , S. A. Harrison , S. Henderson , J. Hubmayr , H. Hui , K. D. Irwin , J. H. Kang , K. S. Karkare , S. Kefeli , J. M. Kovac , C. Kuo , K. Lau , M. Lautzenhiser , A. Lennox , T. Liu , K. G. Megerian , L. Minutolo , L. Moncelsi , Y. Nakato , H. T. Nguyen , R. O'brient , A. Patel , M. A. Petroff , A. R. Polish , T. Prouve , C. Pryke , C. D. Reintsema , T. Romand , M. Salatino , A. Schillaci , B. Schmitt , B. Singari , K. Sjoberg , A. Soliman , T. St Germaine , A. Steiger , B. Steinbach , R. Sudiwala , K. L. Thompson , C. Tsai , C. Tucker , A. D. Turner , C. Vergès , A. G. Vieregg , A. Wandui , A. C. Weber , J. Willmert , W. L. K. Wu , H. Yang , C. Yu , L. Zeng , C. Zhang , S. Zhang

Improved Polarization Calibration of the BICEP3 CMB Polarimeter at the South Pole

The BICEP3 Polarimeter is a small aperture, refracting telescope, dedicated to the observation of the Cosmic Microwave Background (CMB) at 95GHz. It is designed to target degree angular scale polarization patterns, in particular the…

Instrumentation and Methods for Astrophysics · Physics 2022-08-26 J. Cornelison , C. Vergès , P. A. R. Ade , Z. Ahmed , M. Amiri , D. Barkats , R. Basu Thakur , D. Beck , C. A. Bischoff , J. J. Bock , V. Buza , J. R. Cheshire , J. Connors , M. Crumrine , A. J. Cukierman , E. V. Denison , M. I. Dierickx , L. Duband , M. Eiben , S. Fatigoni , J. P. Filippini , C. Giannakopoulos , N. Goeckner-Wald , D. C. Goldfinger , J. Grayson , P. K. Grimes , G. Hall , G. Halal , M. Halpern , E. Hand , S. A. Harrison , S. Henderson , S. R. Hildebrandt , G. C. Hilton , J. Hubmayr , H. Hui , K. D. Irwin , J. Kang , K. S. Karkare , S. Kefeli , J. M. Kovac , C. L. Kuo , K. Lau , E. M. Leitch , A. Lennox , T. Liu , K. Look , K. G. Megerian , L. Minutolo , L. Moncelsi , Y. Nakato , T. Namikawa , H. T. Nguyen , R. O'Brient , S. Palladino , M. A. Petroff , T. Prouve , C. Pryke , B. Racine , C. D. Reinsema , M. Salatino , A. Schillaci , B. L. Schmitt , B. Singari , A. Soliman , T. St. Germaine , B. Steinbach , R. V. Sudiwala , K. L. Thompson , C. Tsai , C. Tucker , A. D. Turner , C. Umiltà , A. G. Vieregg , A. Wandui , A. C. Weber , D. V. Wiebe , J. Willmert , W. L. K. Wu , H. Yang , K. W. Yoon , E. Young , C. Yu , L. Zeng , C. Zhang , S. Zhang

Polarization Calibration of the BICEP3 CMB polarimeter at the South Pole

The BICEP3 CMB Polarimeter is a small-aperture refracting telescope located at the South Pole and is specifically designed to search for the possible signature of inflationary gravitational waves in the Cosmic Microwave Background (CMB).…

Instrumentation and Methods for Astrophysics · Physics 2020-12-14 J. Cornelison , P. A. R. Ade , Z. Ahmed , M. Amiri , D. Barkats , R. Basu Thakur , C. A. Bischoff , J. J. Bock , H. Boenish , E. Bullock , V. Buza , J. R. Cheshire , J. Connors , M. Crumrine , A. Cukierman , E. Denison , M. Dierickx , L. Duband , M. Eiben , S. Fatigoni , J. P. Filippini , S. Fliescher , N. Goeckner-Wald , D. C. Goldfinger , J. A. Grayson , P. Grimes , G. Hall , M. Halpern , S. A. Harrison , S. Henderson , S. R. Hildebrandt , G. C. Hilton , J. Hubmayr , H. Hui , K. D. Irwin , J. Kang , K. S. Karkare , E. Karpel , S. Kefeli , S. A. Kernasovskiy , J. M. Kovac , C. L. Kuo , K. Lau , E. M. Leitch , K. G. Megerian , L. Minutolo , L. Moncelsi , Y. Nakato , T. Namikawa , H. T. Nguyen , R. O'Brient , R. W. Ogburn , S. Palladino , N. Precup , T. Prouve , C. Pryke , B. Racine , C. D. Reintsema , S. Richter , A. Schillaci , B. L. Schmitt , R. Schwarz , C. D. Sheehy , A. Soliman , T. St. Germaine , B. Steinbach , R. V. Sudiwala , G. P. Teply , K. L. Thompson , J. E. Tolan , C. Tucker , A. D. Turner , C. Umiltà , A. G. Vieregg , A. Wandui , A. C. Weber , D. V. Wiebe , J. Willmert , C. L. Wong , W. L. K. Wu , E. Yang , K. W. Yoon , E. Young , C. Yu , L. Zeng , C. Zhang , S. Zhang

Foreground-Induced Biases in CMB Polarimeter Self-Calibration

Precise polarisation measurements of the cosmic microwave background (CMB) require accurate knowledge of the instrument orientation relative to the sky frame used to define the cosmological Stokes parameters. Suitable celestial calibration…

Cosmology and Nongalactic Astrophysics · Physics 2016-02-09 M. H. Abitbol , J. C. Hill , B. R. Johnson

Improved Absolute Polarization Calibrator for BICEP CMB Polarimeters

Cosmic birefringence is a hypothesized parity violation in electromagnetism that predicts a frequency-independent polarization rotation as light propagates. This would rotate the light from the Cosmic Microwave Background, producing an…

Instrumentation and Methods for Astrophysics · Physics 2025-10-16 A. R. Polish , P. A. R. Ade , Z. Ahmed , M. Amiri , D. Barkats , R. Basu Thakur , C. A. Bischoff , D. Beck , J. J. Bock , H. Boenish , V. Buza , B. Cantrall , J. R. Cheshire , J. Connors , J. Cornelison , M. Crumrine , A. J. Cukierman , E. Denison , L. Duband , M. Echter , M. Eiben , B. D. Elwood , S. Fatigoni , J. P. Filippini , A. Fortes , M. Gao , C. Giannakopoulos , N. Goeckner-Wald , D. C. Goldfinger , S. Gratton , J. A. Grayson , A. Greathouse , P. K. Grimes , G. Hall , G. Halal , M. Halpern , E. Hand , S. A. Harrison , S. Henderson , T. D. Hoang , J. Hubmayr , H. Hui , K. D. Irwin , J. H. Kang , K. S. Karkare , S. Kefeli , J. M. Kovac , C. Kuo , K. Lasko , K. K. Lau , M. Lautzenhiser , A. Lennox , T. Liu , S. Mackey , N. Maher , K. G. Megerian , L. Minutolo , L. Moncelsi , Y. Nakato , H. T. Nguyen , R. O'Brient , S. N. Paine , A. Patel , M. A. Petroff , T. Prouve , C. Pryke , C. D. Reintsema , T. Romand , M. Salatino , A. Schillaci , B. Schmitt , B. Singari , A. Soliman , T. St. Germaine , A. Steiger , B. Steinbach , R. Sudiwala , K. L. Thompson , C. Tsai , C. Tucker , A. D. Turner , C. Verges , A. G. Vieregg , A. Wandui , A. C. Weber , J. Willmert , W. L. K. Wu , H. Yang , C. Yu , L. Zheng , C. Zhang , S. Zhang

Self-Calibration of CMB Polarization Experiments

Precision measurements of the polarization of the cosmic microwave background (CMB) radiation, especially experiments seeking to detect the odd-parity "B-modes", have far-reaching implications for cosmology. To detect the B-modes generated…

Cosmology and Nongalactic Astrophysics · Physics 2012-12-27 Brian Keating , Meir Shimon , Amit Yadav

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

Characterization of the BICEP Telescope for High-Precision Cosmic Microwave Background Polarimetry

The BICEP experiment was designed specifically to search for the signature of inflationary gravitational waves in the polarization of the cosmic microwave background (CMB). Using a novel small-aperture refractor and 49 pairs of…

Cosmology and Nongalactic Astrophysics · Physics 2010-02-25 Y. D. Takahashi , P. A. R. Ade , D. Barkats , J. O. Battle , E. M. Bierman , J. J. Bock , H. C. Chiang , C. D. Dowell , L. Duband , E. F. Hivon , W. L. Holzapfel , V. V. Hristov , W. C. Jones , B. G. Keating , J. M. Kovac , C. L. Kuo , A. E. Lange , E. M. Leitch , P. V. Mason , T. Matsumura , H. T. Nguyen , N. Ponthieu , C. Pryke , S. Richter , G. Rocha , K. W. Yoon

CMB polarimetry with BICEP: instrument characterization, calibration, and performance

BICEP is a ground-based millimeter-wave bolometric array designed to target the primordial gravity wave signature on the polarization of the cosmic microwave background (CMB) at degree angular scales. Currently in its third year of…

Astrophysics · Physics 2009-11-13 Yuki D. Takahashi , Denis Barkats , John O. Battle , Evan M. Bierman , James J. Bock , H. Cynthia Chiang , C. Darren Dowell , Eric F. Hivon , William L. Holzapfel , Viktor V. Hristov , William C. Jones , J. P. Kaufman , Brian G. Keating , John M. Kovac , Chao-Lin Kuo , Andrew E. Lange , Erik M. Leitch , Peter V. Mason , Tomotake Matsumura , Hien T. Nguyen , Nicolas Ponthieu , Graca M. Rocha , Ki Won Yoon , P. Ade , L. Duband

Calibration Measurements of the BICEP3 and BICEP Array CMB Polarimeters from 2017 to 2024

The BICEP3 and BICEP Array polarimeters are small-aperture refracting telescopes located at the South Pole designed to measure primordial gravitational wave signatures in the Cosmic Microwave Background (CMB) polarization, predicted by…

Cosmology and Nongalactic Astrophysics · Physics 2024-09-26 Christos Giannakopoulos , Clara Vergès , P. A. R. Ade , Zeeshan Ahmed , Mandana Amiri , Denis Barkats , Ritoban Basu Thakur , Colin A. Bischoff , Dominic Beck , James J. Bock , Hans Boenish , Victor Buza , James R. Cheshire , Jake Connors , James Cornelison , Michael Crumrine , Ari Jozef Cukierman , Edward Denison , Marion Dierickx , Lionel Duband , Miranda Eiben , Brodi D. Elwood , Sofia Fatigoni , Jeff P. Filippini , Antonio Fortes , Min Gao , Neil Goeckner-Wald , David C. Goldfinger , James A. Grayson , Paul K. Grimes , Grantland Hall , George Halal , Mark Halpern , Emma Hand , Sam A. Harrison , Shawn Henderson , Johannes Hubmayr , Howard Hui , Kent D. Irwin , Jae Hwan Kang , Kirit S. Karkare , Sinan Kefeli , J. M. Kovac , Chao-Lin Kuo , King Lau , Margaret Lautzenhiser , Amber Lennox , Tongtian Liu , Koko G. Megerian , Oliver Miller , Lorenzo Minutolo , Lorenzo Moncelsi , Yuka Nakato , H. T. Nguyen , Roger O'brient , Anika Patel , Matthew A. Petroff , Anna R. Polish , Nathan Precup , Thomas Prouve , Clement Pryke , Carl D. Reintsema , Thibault Romand , Maria Salatino , Alessandro Schillaci , Benjamin Schmitt , Baibhav Singari , Ahmed Soliman , Tyler St Germaine , Aaron Steiger , Bryan Steinbach , Rashmi Sudiwala , Keith L. Thompson , Calvin Tsai , Carole Tucker , Anthony D. Turner , Abigail G. Vieregg , Albert Wandui , Alexis C. Weber , Justin Willmert , Wai Ling K. Wu , Hung-I Yang , Cyndia Yu , Lingzhen Zeng , Cheng Zhang , Silvia Zhang

Revealing Cosmic Rotation

Cosmological Birefringence (CB), a rotation of the polarization plane of radiation coming to us from distant astrophysical sources, may reveal parity violation in either the electromagnetic or gravitational sectors of the fundamental…

Cosmology and Nongalactic Astrophysics · Physics 2013-05-30 Amit P. S. Yadav , Meir Shimon , Brian G. Keating

Measurement of Cosmic Microwave Background Polarization Power Spectra from Two Years of BICEP Data

Background Imaging of Cosmic Extragalactic Polarization (BICEP) is a bolometric polarimeter designed to measure the inflationary B-mode polarization of the cosmic microwave background (CMB) at degree angular scales. During three seasons of…

Cosmology and Nongalactic Astrophysics · Physics 2010-02-25 H. C. Chiang , P. A. R. Ade , D. Barkats , J. O. Battle , E. M. Bierman , J. J. Bock , C. D. Dowell , L. Duband , E. F. Hivon , W. L. Holzapfel , V. V. Hristov , W. C. Jones , B. G. Keating , J. M. Kovac , C. L. Kuo , A. E. Lange , E. M. Leitch , P. V. Mason , T. Matsumura , H. T. Nguyen , N. Ponthieu , C. Pryke , S. Richter , G. Rocha , C. Sheehy , Y. D. Takahashi , J. E. Tolan , K. W. Yoon

Primordial Gravitational Waves Measurements and Anisotropies of CMB Polarization Rotation

Searching for the signal of primordial gravitational waves in the B-modes (BB) power spectrum is one of the key scientific aims of the cosmic microwave background (CMB) polarization experiments. However, this could be easily contaminated by…

Cosmology and Nongalactic Astrophysics · Physics 2015-11-18 Si-Yu Li , Jun-Qing Xia , Mingzhe Li , Hong Li , Xinmin Zhang

Constraints on cosmological birefringence from Planck and Bicep2/Keck data

The polarization of cosmic microwave background (CMB) can be used to constrain cosmological birefringence, the rotation of the linear polarization of CMB photons potentially induced by parity violating physics beyond the standard model.…

Cosmology and Nongalactic Astrophysics · Physics 2016-06-08 A. Gruppuso , M. Gerbino , P. Natoli , L. Pagano , N. Mandolesi , D. Molinari

Optical Characterization of the BICEP3 CMB Polarimeter at the South Pole

BICEP3 is a small-aperture refracting cosmic microwave background (CMB) telescope designed to make sensitive polarization maps in pursuit of a potential B-mode signal from inflationary gravitational waves. It is the latest in the BICEP/Keck…

Instrumentation and Methods for Astrophysics · Physics 2017-01-18 K. S. Karkare , P. A. R. Ade , Z. Ahmed , K. D. Alexander , M. Amiri , D. Barkats , S. J. Benton , C. A. Bischoff , J. J. Bock , H. Boenish , R. Bowens-Rubin , I. Buder , E. Bullock , V. Buza , J. Connors , J. P. Filippini , S. T. Fliescher , J. A. Grayson , M. Halpern , S. A. Harrison , G. C. Hilton , V. V. Hristov , H. Hui , K. D. Irwin , J. H. Kang , E. Karpel , S. Kefeli , S. A. Kernasovskiy , J. M. Kovac , C. L. Kuo , E. M. Leitch , M. Lueker , K. G. Megerian , V. Monticue , T. Namikawa , C. B. Netterfield , H. T. Nguyen , R. O'Brient , R. W. Ogburn , C. Pryke , C. D. Reintsema , S. Richter , M. T. St. Germaine , R. Schwarz , C. D. Sheehy , Z. K. Staniszewski , B. Steinbach , G. P. Teply , K. L. Thompson , J. E. Tolan , C. Tucker , A. D. Turner , A. G. Vieregg , A. Wandui , A. Weber , J. Willmert , C. L. Wong , W. L. K. Wu , K. W. Yoon

Simultaneous determination of the cosmic birefringence and miscalibrated polarisation angles from CMB experiments

We show that the cosmic birefringence and miscalibrated polarisation angles can be determined simultaneously by cosmic microwave background (CMB) experiments using the cross-correlation between $E$- and $B$-mode polarisation data. This is…

Cosmology and Nongalactic Astrophysics · Physics 2019-04-30 Yuto Minami , Hiroki Ochi , Kiyotomo Ichiki , Nobuhiko Katayama , Eiichiro Komatsu , Tomotake Matsumura

BICEP2 / Keck Array IX: New Bounds on Anisotropies of CMB Polarization Rotation and Implications for Axion-Like Particles and Primordial Magnetic Fields

We present the strongest constraints to date on anisotropies of cosmic microwave background (CMB) polarization rotation derived from 150 GHz data taken by the BICEP2/Keck Array CMB experiments up to and including the 2014 observing season…

Cosmology and Nongalactic Astrophysics · Physics 2019-06-21 Keck Array , BICEP2 Collaborations , : , P. A. R. Ade , Z. Ahmed , R. W. Aikin , K. D. Alexander , D. Barkats , S. J. Benton , C. A. Bischoff , J. J. Bock , R. Bowens-Rubin , J. A. Brevik , I. Buder , E. Bullock , V. Buza , J. Connors , B. P. Crill , L. Duband , C. Dvorkin , J. P. Filippini , S. Fliescher , T. St. Germaine , T. Ghosh , J. Grayson , S. Harrison , S. R. Hildebrandt , G. C. Hilton , H. Hui , K. D. Irwin , J. Kang , K. S. Karkare , E. Karpel , J. P. Kaufman , B. G. Keating , S. Kefeli , S. A. Kernasovskiy , J. M. Kovac , C. L. Kuo , N. A. Larsen , E. M. Leitch , K. G. Megerian , L. Moncelsi , T. Namikawa , C. B. Netterfield , H. T. Nguyen , R. O'Brient , R. W. Ogburn , C. Pryke , S. Richter , A. Schillaci , R. Schwarz , C. D. Sheehy , Z. K. Staniszewski , B. Steinbach , R. V. Sudiwala , G. P. Teply , K. L. Thompson , J. E. Tolan , C. Tucker , A. D. Turner , A. G. Vieregg , A. C. Weber , D. V. Wiebe , J. Willmert , C. L. Wong , W. L. K. Wu , K. W. Yoon

BICEP2 II: Experiment and Three-Year Data Set

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 (CMB) on angular scales of 1 to 5 degrees ($\ell$=40-200),…

Cosmology and Nongalactic Astrophysics · Physics 2014-08-18 BICEP2 Collaboration , P. A. R Ade , R. W. Aikin , M. Amiri , D. Barkats , S. J. Benton , C. A. Bischoff , J. J. Bock , J. A. Brevik , I. Buder , E. Bullock , G. Davis , C. D. Dowell , L. Duband , J. P. Filippini , S. Fliescher , S. R. Golwala , M. Halpern , M. Hasselfield , S. R. Hildebrandt , G. C. Hilton , V. V. Hristov , K. D. Irwin , K. S. Karkare , J. P. Kaufman , B. G. Keating , S. A. Kernasovskiy , J. M. Kovac , C. L. Kuo , E. M. Leitch , N. Llombart , M. Lueker , C. B. Netterfield , H. T. Nguyen , R. O'Brient , R. W. Ogburn , A. Orlando , C. Pryke , C. D. Reintsema , S. Richter , R. Schwarz , C. D. Sheehy , Z. K. Staniszewski , K. T. Story , R. V. Sudiwala , G. P. Teply , J. E. Tolan , A. D. Turner , A. G. Vieregg , P. Wilson , C. L. Wong , K. W. Yoon

Constraints on Anisotropic Cosmic Birefringence from CMB B-mode Polarization

Cosmic birefringence$-$the rotation of the polarization plane of light as it traverses the universe$-$offers a direct observational window into parity-violating physics beyond the Standard Model. In this work, we revisit the anisotropic…

Cosmology and Nongalactic Astrophysics · Physics 2025-06-27 A. I. Lonappan , B. Keating , K. Arnold

CMB Polarization Systematics, Cosmological Birefringence and the Gravitational Waves Background

Cosmic Microwave Background experiments must achieve very accurate calibration of their polarization reference frame to avoid biasing the cosmological parameters. In particular, a wrong or inaccurate calibration might mimic the presence of…

Cosmology and Nongalactic Astrophysics · Physics 2009-09-01 Luca Pagano , Paolo de Bernardis , Grazia De Troia , Giulia Gubitosi , Silvia Masi , Alessandro Melchiorri , Paolo Natoli , Francesco Piacentini , Gianluca Polenta