N
N. A. Larsen
Researcher at University of Chicago
Publications - 13
Citations - 683
N. A. Larsen is an academic researcher from University of Chicago. The author has contributed to research in topics: Cosmic microwave background & South Pole Telescope. The author has an hindex of 8, co-authored 13 publications receiving 561 citations. Previous affiliations of N. A. Larsen include California Institute of Technology.
Papers
More filters
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.
Proceedings ArticleDOI
BICEP Array: A multi-frequency degree-scale CMB polarimeter
Howard Hui,Peter A. R. Ade,Zeeshan Ahmed,Randol W. Aikin,Kate D. Alexander,Denis Barkats,S. J. Benton,Colin A. Bischoff,James 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,Gene C. Hilton,Kent D. Irwin,J. Kang,Kirit Karkare,E. Karpel,J. P. Kaufman,Brian Keating,S. Kefeli,S. A. Kernasovskiy,John M Kovac,C. L. Kuo,Kam Y. Lau,N. A. Larsen,E. M. Leitch,M. Lueker,K. G. Megerian,Lorenzo Moncelsi,T. Namikawa,Calvin B. Netterfield,H. T. Nguyen,Roger O'Brient,R. W. Ogburn,S. Palladino,C. Pryke,B. Racine,S. Richter,R. Schwarz,Alessandro Schillaci,C. D. Sheehy,Ahmed Soliman,T. St. Germaine,Z. K. Staniszewski,Bryan Steinbach,Rashmikant V. Sudiwala,G. P. Teply,K. L. Thompson,J. E. Tolan,Carole Tucker,A. D. Turner,C. Umiltà,Abigail G. Vieregg,A. Wandui,A. C. Weber,Donald V. Wiebe,J. Willmert,C. L. Wong,W. L. K. Wu,Eui-Hyeok Yang,Ki Won Yoon,C. Zhang +77 more
TL;DR: The Bicep Array as discussed by the authors is the latest multi-frequency instrument in the BICEp/Keck Array program, consisting of four 550mm aperture refractive telescopes observing the polarization of the cosmic microwave background (CMB) at 30/40, 95, 150 and 220/270 GHz with over 30,000 detectors.
Proceedings ArticleDOI
BICEP Array: a multi-frequency degree-scale CMB polarimeter
Howard Hui,Peter A. R. Ade,Zeeshan Ahmed,Randol W. Aikin,Kate D. Alexander,Denis Barkats,S. J. Benton,Colin A. Bischoff,James 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,Gene C. Hilton,Kent D. Irwin,J. Kang,Kirit Karkare,E. Karpel,J. P. Kaufman,Brian Keating,S. Kefeli,S. A. Kernasovskiy,John M Kovac,C. L. Kuo,Kam Y. Lau,N. A. Larsen,E. M. Leitch,M. Lueker,K. G. Megerian,Lorenzo Moncelsi,T. Namikawa,Calvin B. Netterfield,H. T. Nguyen,Roger O'Brient,R. W. Ogburn,S. Palladino,C. Pryke,B. Racine,S. Richter,R. Schwarz,Alessandro Schillaci,C. D. Sheehy,Ahmed Soliman,T. St. Germaine,Z. K. Staniszewski,Bryan Steinbach,Rashmikant V. Sudiwala,G. P. Teply,K. L. Thompson,J. E. Tolan,Carole Tucker,A. D. Turner,C. Umiltà,Abigail G. Vieregg,A. Wandui,A. C. Weber,Donald V. Wiebe,J. Willmert,C. L. Wong,W. L. K. Wu,Eui-Hyeok Yang,Ki Won Yoon,C. Zhang +77 more
TL;DR: The BICEP Array as mentioned in this paper is the newest multi-frequency instrument in the BiceP/Keck Array program, consisting of four 550 mm aperture refractive telescopes observing the polarization of the cosmic microwave background (CMB) at 30/40, 95, 150 and 220/270 GHz with over 30,000 detectors.
Journal ArticleDOI
BICEP2 / Keck Array XI: Beam Characterization and Temperature-to-Polarization Leakage in the BK15 Dataset
Keck Array,Bicep Collaborations,P. A. R. Ade,Z. Ahmed,Randol W. Aikin,Denis Barkats,Steven J. Benton,Colin A. Bischoff,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,Jeffrey P. Filippini,S. Fliescher,J. A. Grayson,G. Hall,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,C. L. Kuo,N. A. Larsen,King Tong Lau,E. M. Leitch,M. Lueker,K. G. Megerian,Lorenzo Moncelsi,Toshiya Namikawa,Calvin B. Netterfield,H. T. Nguyen,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. Staniszewski,Bryan Steinbach,R. V. Sudiwala,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,K. W. Yoon,Chao Zhang +77 more
TL;DR: In this article, a cosmological constraint from observations with the BICEP2 and Keck Array experiments up to and including the 2015 observing season (BK15) was presented, resulting in the deepest CMB polarization maps to date and a statistical sensitivity to the tensor-to-scalar ratio of $\sigma(r) = 0.0027 \pm 0.020$.
Posted Content
BICEP Array cryostat and mount design
M. Crumrine,Peter A. R. Ade,Z. Ahmed,Randol W. Aikin,Kate D. Alexander,D. Barkats,S. J. Benton,C. A. Bischof,J. J. Bock,R. Bowens-Rubin,Justus A. Brevik,I. Buder,E. Bullock,Victor Buza,Jake Connors,J. Cornelison,B. P. Crill,Marion Dierickx,L. Duband,Cora Dvorkin,Jeffrey P. Filippini,S. Fliescher,J. A. Grayson,G. Hall,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,C. L. Kuo,King Tong Lau,N. A. Larsen,E. M. Leitch,M. Lueker,K. G. Megerian,Lorenzo Moncelsi,T. Namikawa,H. T. Nguyen,Roger O'Brient,R. W. Ogburn,S. Palladino,C. Pryke,B. Racine,S. Richter,R. Schwarz,A. Schillaci,C. D. Sheehy,Ahmed Soliman,T. St. Germaine,Z. Staniszewski,Bryan Steinbach,R. V. Sudiwala,Grant Teply,K. L. Thompson,J. E. Tolan,Carole 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,H. Yang,K. W. Yoon,C. Zhang +76 more
TL;DR: The Bicep Array as discussed by the authors is a cosmic microwave background (CMB) polarization experiment that will begin observing at the South Pole in early 2019, and it is a CMB polarization experiment at six frequencies from 30 to 270 GHz.