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Internal Delensing of Cosmic Microwave Background Polarization B-Modes with the POLARBEAR Experiment.
Adachi, S; Aguilar Faúndez, M A O; Akiba, Y; Ali, A; Arnold, K; Baccigalupi, C; Barron, D; Beck, D; Bianchini, F; Borrill, J; Carron, J; Cheung, K; Chinone, Y; Crowley, K; El Bouhargani, H; Elleflot, T; Errard, J; Fabbian, G; Feng, C; Fujino, T; Goeckner-Wald, N; Hasegawa, M; Hazumi, M; Hill, C A; Howe, L; Katayama, N; Keating, B; Kikuchi, S; Kusaka, A; Lee, A T; Leon, D; Linder, E; Lowry, L N; Matsuda, F; Matsumura, T; Minami, Y; Namikawa, T; Navaroli, M; Nishino, H; Peloton, J; Pham, A T P; Poletti, D; Puglisi, G; Reichardt, C L; Segawa, Y; Sherwin, B D; Silva-Feaver, M; Siritanasak, P; Stompor, R; Tajima, O.
Affiliation
  • Adachi S; Department of Physics, Kyoto University, Kyoto 606-8502, Japan.
  • Aguilar Faúndez MAO; Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218, USA.
  • Akiba Y; Departamento de Física, FCFM, Universidad de Chile, Blanco Encalada 2008, Santiago, Chile.
  • Ali A; SOKENDAI (The Graduate University for Advanced Studies), Shonan Village, Hayama, Kanagawa 240-0193, Japan.
  • Arnold K; Department of Physics, University of California, Berkeley, California 94720, USA.
  • Baccigalupi C; Department of Physics, University of California, San Diego, California 92093-0424, USA.
  • Barron D; International School for Advanced Studies (SISSA), Via Bonomea 265, 34136 Trieste, Italy.
  • Beck D; Institute for Fundamental Physics of the Universe (IFPU), Via Beirut 2, 34014 Trieste, Italy.
  • Bianchini F; National Institute for Nuclear Physics (INFN), via Valerio 2, 34127 Trieste, Italy.
  • Borrill J; Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico 87131, USA.
  • Carron J; AstroParticule et Cosmologie (APC), Univ Paris Diderot, CNRS/IN2P3, CEA/Irfu, Obs de Paris, Sorbonne Paris Cité, 75013 Paris, France.
  • Cheung K; School of Physics, University of Melbourne, Parkville VIC 3010, Australia.
  • Chinone Y; Computational Cosmology Center, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
  • Crowley K; Space Sciences Laboratory, University of California, Berkeley, California 94720, USA.
  • El Bouhargani H; Department of Physics and Astronomy, University of Sussex, Brighton BN1 9QH, United Kingdom.
  • Elleflot T; Department of Physics, University of California, Berkeley, California 94720, USA.
  • Errard J; Department of Physics, University of California, Berkeley, California 94720, USA.
  • Fabbian G; Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), UTIAS, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan.
  • Feng C; Kavli Institute for the Physics and Mathematics of the Universe (WPI), Berkeley Satellite, the University of California, Berkeley, California 94720, USA.
  • Fujino T; Department of Physics, University of California, Berkeley, California 94720, USA.
  • Goeckner-Wald N; AstroParticule et Cosmologie (APC), Univ Paris Diderot, CNRS/IN2P3, CEA/Irfu, Obs de Paris, Sorbonne Paris Cité, 75013 Paris, France.
  • Hasegawa M; Department of Physics, University of California, San Diego, California 92093-0424, USA.
  • Hazumi M; AstroParticule et Cosmologie (APC), Univ Paris Diderot, CNRS/IN2P3, CEA/Irfu, Obs de Paris, Sorbonne Paris Cité, 75013 Paris, France.
  • Hill CA; Department of Physics and Astronomy, University of Sussex, Brighton BN1 9QH, United Kingdom.
  • Howe L; Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois 61801, USA.
  • Katayama N; Yokohama National University, Yokohama, Kanagawa 240-8501, Japan.
  • Keating B; Department of Physics, University of California, Berkeley, California 94720, USA.
  • Kikuchi S; High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan.
  • Kusaka A; SOKENDAI (The Graduate University for Advanced Studies), Shonan Village, Hayama, Kanagawa 240-0193, Japan.
  • Lee AT; Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), UTIAS, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan.
  • Leon D; High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan.
  • Linder E; Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, Kanagawa 252-0222, Japan.
  • Lowry LN; Department of Physics, University of California, Berkeley, California 94720, USA.
  • Matsuda F; Department of Physics, University of California, San Diego, California 92093-0424, USA.
  • Matsumura T; Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), UTIAS, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan.
  • Minami Y; Department of Physics, University of California, San Diego, California 92093-0424, USA.
  • Namikawa T; Yokohama National University, Yokohama, Kanagawa 240-8501, Japan.
  • Navaroli M; Kavli Institute for the Physics and Mathematics of the Universe (WPI), Berkeley Satellite, the University of California, Berkeley, California 94720, USA.
  • Nishino H; Physics Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
  • Peloton J; Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan.
  • Pham ATP; Research Center for the Early Universe, School of Science, The University of Tokyo, Tokyo 113-0033, Japan.
  • Poletti D; Department of Physics, University of California, Berkeley, California 94720, USA.
  • Puglisi G; Physics Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
  • Reichardt CL; Radio Astronomy Laboratory, University of California, Berkeley, California 94720, USA.
  • Segawa Y; Department of Physics, University of California, San Diego, California 92093-0424, USA.
  • Sherwin BD; Space Sciences Laboratory, University of California, Berkeley, California 94720, USA.
  • Silva-Feaver M; Department of Physics, University of California, San Diego, California 92093-0424, USA.
  • Siritanasak P; Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), UTIAS, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan.
  • Stompor R; Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU, WPI), UTIAS, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan.
  • Tajima O; High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan.
Phys Rev Lett ; 124(13): 131301, 2020 Apr 03.
Article in En | MEDLINE | ID: mdl-32302154
ABSTRACT
Using only cosmic microwave background polarization data from the polarbear experiment, we measure B-mode polarization delensing on subdegree scales at more than 5σ significance. We achieve a 14% B-mode power variance reduction, the highest to date for internal delensing, and improve this result to 22% by applying for the first time an iterative maximum a posteriori delensing method. Our analysis demonstrates the capability of internal delensing as a means of improving constraints on inflationary models, paving the way for the optimal analysis of next-generation primordial B-mode experiments.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2020 Document type: Article Affiliation country:
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2020 Document type: Article Affiliation country: