J
J. A. Grayson
Researcher at Stanford University
Publications - 52
Citations - 2681
J. A. Grayson is an academic researcher from Stanford University. The author has contributed to research in topics: Cosmic microwave background & Detector. The author has an hindex of 17, co-authored 48 publications receiving 2123 citations. Previous affiliations of J. A. Grayson include University of California, Berkeley & University of Illinois at Urbana–Champaign.
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Journal ArticleDOI
Improved Constraints on Cosmology and Foregrounds from BICEP2 and Keck Array Cosmic Microwave Background Data with Inclusion of 95 GHz Band
Peter A. R. Ade,Zeeshan Ahmed,Randol W. Aikin,Kate D. Alexander,Denis Barkats,S. J. Benton,Colin A. Bischoff,J. J. Bock,R. Bowens-Rubin,Justus A. Brevik,I. Buder,E. Bullock,Victor Buza,Jake Connors,B. P. Crill,L. Duband,Cora Dvorkin,Jeffrey P. Filippini,S. Fliescher,J. A. Grayson,Mark Halpern,Sarah M. Harrison,Gene C. Hilton,Howard Hui,Kent D. Irwin,Kirit Karkare,E. Karpel,J. P. Kaufman,Brian Keating,S. Kefeli,S. A. Kernasovskiy,John M Kovac,Chao-Lin Kuo,E. M. Leitch,M. Lueker,K. G. Megerian,Calvin B. Netterfield,H. T. Nguyen,Roger O'Brient,R. W. Ogburn,A. Orlando,C. Pryke,S. Richter,R. Schwarz,C. D. Sheehy,Z. K. Staniszewski,Bryan Steinbach,R. V. Sudiwala,Grant Teply,K. L. Thompson,J. E. Tolan,Carole Tucker,A. D. Turner,Abigail G. Vieregg,A. C. Weber,D. V. Wiebe,J. Willmert,C. L. Wong,W. L. K. Wu,Ki Won Yoon +59 more
TL;DR: An analysis of all data taken by the BICEP2 and Keck Array cosmic microwave background (CMB) polarization experiments up to and including the 2014 observing season yields an upper limit r_{0.05}<0.09 at 95% confidence, which is robust to variations explored in analysis and priors.
Journal ArticleDOI
Constraints on Primordial Gravitational Waves Using Planck, WMAP, and New BICEP2/Keck Observations through the 2015 Season.
Peter A. R. Ade,Z. Ahmed,Randol W. Aikin,Kate D. Alexander,Denis Barkats,Steven J. Benton,Colin A. Bischoff,J. J. Bock,J. J. Bock,R. Bowens-Rubin,Justus A. Brevik,I. Buder,E. Bullock,Victor Buza,Jake Connors,J. Cornelison,B. P. Crill,M. Crumrine,Marion Dierickx,L. Duband,Cora Dvorkin,Jeffrey P. Filippini,S. Fliescher,J. A. Grayson,G. Hall,Mark Halpern,Sarah M. Harrison,S. R. Hildebrandt,S. R. Hildebrandt,Gene C. Hilton,Howard Hui,Kent D. Irwin,Kent D. Irwin,J. Kang,Kirit Karkare,E. Karpel,J. P. Kaufman,Brian Keating,S. Kefeli,S. A. Kernasovskiy,John M Kovac,Chao-Lin Kuo,N. A. Larsen,King Tong Lau,E. M. Leitch,M. Lueker,K. G. Megerian,Lorenzo Moncelsi,Toshiya Namikawa,Calvin B. Netterfield,Calvin B. Netterfield,H. T. Nguyen,Roger O'Brient,Roger O'Brient,R. W. Ogburn,S. Palladino,C. Pryke,B. Racine,Stefan Richter,Alessandro Schillaci,R. Schwarz,C. D. Sheehy,Ahmed Soliman,T. St. Germaine,Z. K. Staniszewski,Z. K. Staniszewski,Bryan Steinbach,R. V. Sudiwala,Grant Teply,Grant Teply,K. L. Thompson,J. E. Tolan,C. Tucker,A. D. Turner,C. Umilta,Abigail G. Vieregg,A. Wandui,A. C. Weber,D. V. Wiebe,J. Willmert,C. L. Wong,W. L. K. Wu,Hyunsoo Yang,Ki Won Yoon,Chao Zhang +84 more
TL;DR: Results from an analysis of all data taken by the bicep2/Keck CMB polarization experiments up to and including the 2015 observing season are presented, showing the strongest constraints to date on primordial gravitational waves.
Journal ArticleDOI
Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season.
P. A. R. Ade,Z. Ahmed,Mandana Amiri,D Barkats,R. Basu Thakur,Colin A. Bischoff,D Beck,J. J. Bock,H Boenish,E. Bullock,Victor Buza,J. R. Cheshire,J Connors,J Cornelison,M. Crumrine,Aviv Ruben Cukierman,E. V. Denison,Marion Dierickx,Lionel Duband,M Eiben,S. Fatigoni,Jeffrey P. Filippini,S. Fliescher,Neil Goeckner-Wald,D C Goldfinger,J. A. Grayson,P. Grimes,G. Hall,G. Halal,Mark Halpern,E Hand,Sarah M. Harrison,S. Henderson,S. R. Hildebrandt,Gene C. Hilton,Johannes Hubmayr,Howard Hui,Kent D. Irwin,J. Kang,K S Karkare,E. Karpel,S. Kefeli,S. A. Kernasovskiy,J. Kovac,Chao-Lin Kuo,Kei May Lau,E. M. Leitch,A. Lennox,K. G. Megerian,L. Minutolo,Lorenzo Moncelsi,Y Nakato,T Namikawa,H. T. Nguyen,Roger O'Brient,R. W. Ogburn,S. Palladino,T Prouve,C. Pryke,B Racine,Carl D. Reintsema,S Richter,Alessandro Schillaci,R. Schwarz,B L Schmitt,C. D. Sheehy,Ahmed Soliman,T St Germaine,Bryan Steinbach,R. V. Sudiwala,Grant Teply,K L Thompson,J. E. Tolan,C. Tucker,A. D. Turner,C. Umilta,C Vergès,Abigail G. Vieregg,A. Wandui,A. C. Weber,D. V. Wiebe,J. Willmert,C L Wong,W L K Wu,Haijun Yang,K W Yoon,E Young,C. Yu,Lingzhen Zeng,Chao Zhang,Shengyu Zhang,Bicep +91 more
TL;DR: In this paper, the authors present results from an analysis of all data taken by the BICEP2, Keck Array, and BiceP3 CMB polarization experiments up to and including the 2018 observing season.
Proceedings ArticleDOI
BICEP3: a 95GHz refracting telescope for degree-scale CMB polarization
Zeeshan Ahmed,Mandana Amiri,S. J. Benton,James J. Bock,James J. Bock,R. Bowens-Rubin,I. Buder,E. Bullock,Jake Connors,Jeffrey P. Filippini,J. A. Grayson,Mark Halpern,Gene C. Hilton,Viktor Hristov,Howard Hui,Kent D. Irwin,J. Kang,Kirit Karkare,E. Karpel,John M Kovac,Chao-Lin Kuo,Calvin B. Netterfield,H. T. Nguyen,Roger O'Brient,R. W. Ogburn,C. Pryke,Carl D. Reintsema,S. Richter,K. L. Thompson,A. D. Turner,Abigail G. Vieregg,W. L. K. Wu,Ki Won Yoon +32 more
TL;DR: Bicep3 as discussed by the authors is a 550 mm-aperture refracting telescope for polarimetry of radiation in the cosmic microwave background at 95 GHz, with a focal plane area 5x larger than a Bicep2/Keck Array receiver.
Journal ArticleDOI
BICEP2 / Keck Array VIII: Measurement of gravitational lensing from large-scale B-mode polarization
Keck Array,Bicep Collaborations,Peter A. R. Ade,Z. Ahmed,Randol W. Aikin,Kate D. Alexander,Denis Barkats,Steven J. Benton,Colin A. Bischoff,James J. Bock,R. Bowens-Rubin,Justus A. Brevik,I. Buder,E. Bullock,Victor Buza,Jake Connors,B. P. Crill,L. Duband,Cora Dvorkin,J. P. Filippin,S. Fliescher,J. A. Grayson,Mark Halpern,Sarah M. Harrison,S. R. Hildebrandt,Gene C. Hilton,Howard Hui,Kent D. Irwin,J. Kang,Kirit Karkare,E. Karpel,J. P. Kaufman,Brian Keating,S. Kefeli,S. A. Kernasovskiy,John M Kovac,Chao-Lin Kuo,E. M. Leitch,M. Lueker,K. G. Megerian,Toshiya Namikawa,Calvin B. Netterfield,H. T. Nguyen,Roger O'Brient,R. W. Ogburn,Angelo Orlando,C. Pryke,Stefan Richter,R. Schwarz,C. D. Sheehy,Z. Staniszewski,Bryan Steinbach,R. V. Sudiwala,Grant Teply,K. L. Thompson,J. E. Tolan,Carole Tucker,A. D. Turner,Abigail G. Vieregg,A. C. Weber,Donald V. Wiebe,J. Willmert,C. L. Wong,W. L. K. Wu,K. W. Yoon +64 more
TL;DR: In this paper, the authors present measurements of polarization lensing using the 150 GHz maps which include all data taken by the BICEP2 & Keck Array CMB polarization experiments up to and including the 2014 observing season (BK14).