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2019 Fiscal Year Annual Research Report

次世代望遠鏡群による宇宙背景放射観測の展開~宇宙の暗黒成分とインフレーション~

Research Project

Project/Area Number 16K21744
Research InstitutionThe University of Tokyo

Principal Investigator

日下 暁人  東京大学, 大学院理学系研究科, 准教授

Project Period (FY) 2017 – 2019
Keywords宇宙物理 / 電波天文学 / 宇宙マイクロ波背景放射
Outline of Annual Research Achievements

本研究は、2つの宇宙背景放射(CMB)望遠鏡群プロジェクト、Simons Arrayと将来計画Simons Observatoryを遂行し、最終的に現行実験を大きく上回る制度でCMBの測定を行うこと、特にそのための装置開発およびデータ解析手法を進展させることを目的とする。これらの実験においては、検出器数を増やすことにより統計誤差を大幅に削減するが、それに追従する形で系統誤差や相関のあるノイズを削減するために、本研究では半波長板を用いた偏光変調に焦点を当てて、装置開発およびデータ解析の両面から研究を進めた。装置開発においては、高温超伝導ベアリングを用いたSimons Arrayのための連続回転式低温半波長板が完成し、試験および評価を進めている。また、CMB観測用超伝導検出器を動作・テストさせ、半波長板の磁場による影響を評価するための冷凍機システムの構築を進めた。さらに、Simons Observatoryのための半波長板システムの設計と、特にそれに必要な大口径の超伝導ベアリングの開発が進んでいる。一方、データ解析においては、Simons Arrayのための、次世代ハイパフォーマンスコンピューティングシステムに最適化した解析パイプラインの開発を進めている。また、データ解析分野において、連続回転式半波長板の技術実証実験とも呼べるAtacama B-mode Search (ABS)実験の解析結果をリリースした。Simons Observatory実験を構成する望遠鏡群のうち、インフレーションの測定に特化した小口径望遠鏡群は、特に半波長板システムの光学的な設計においてABS実験を踏襲しており、ABS実験による実証は半波長板を用いた高精度CMB測定を大きく後押しした。

  • Research Products

    (18 results)

All 2018 2017 Other

All Int'l Joint Research (1 results) Journal Article (15 results) (of which Int'l Joint Research: 15 results,  Peer Reviewed: 6 results) Presentation (2 results) (of which Invited: 2 results)

  • [Int'l Joint Research] ローレンスバークレー研究所/カリフォルニア大学バークレー校/プリンストン大学(米国)

    • Country Name
      U.S.A.
    • Counterpart Institution
      ローレンスバークレー研究所/カリフォルニア大学バークレー校/プリンストン大学
    • # of Other Institutions
      18
  • [Journal Article] The POLARBEAR-2 and Simons Array Focal Plane Fabrication Status2018

    • Author(s)
      B Westbrook, PAR Ade, M Aguilar, Y Akiba, K Arnold, C Baccigalupi, D Barron, D Beck, S Beckman, AN Bender, F Bianchini, D Boettger, J Borrill, S Chapman, Y Chinone, G Coppi, K Crowley, A Cukierman, T de Haan, R Dünner, M Dobbs, T Elleflot, J Errard, G Fabbian, SM Feeney, C Feng, G Fuller, N Galitzki, A Gilbert, N Goeckner-Wald, J Groh, NW Halverson, T Hamada, M Hasegawa, M Hazumi, CA Hill, W Holzapfel, L Howe, Y Inoue, G Jaehnig, A Jaffe, O Jeong, D Kaneko, N Katayama, B Keating, R Keskitalo, T Kisner, N Krachmalnicoff, A Kusaka, M Le Jeune, AT Lee, D Leon, E Linder, L Lowry, A Madurowicz, D Mak, F Matsuda, A May, NJ Miller, Y Minami, J Montgomery, M Navaroli, H Nishino, J Peloton, A Pham, L Piccirillo, D Plambeck, D Poletti, G Puglisi, C Raum, G Rebeiz, CL Reichardt, PL Richards, H Roberts, C Ross, KM Rotermund, Y Segawa, B Sherwin, M Silva-Feaver, P Siritanasak, R Stompor, A Suzuki, O Tajima, S Takakura, S Takatori, D Tanabe, R Tat, GP Teply, A Tikhomirov, T Tomaru, C Tsai, N Whitehorn, A Zahn
    • Journal Title

      Journal of Low Temperature Physics

      Pages: 1-13

    • DOI

      10.1007/s10909-018-2059-0

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Systematic uncertainties in the Simons Observatory : optical effects and sensitivity considerations2018

    • Author(s)
      Patricio A. Gallardo; Jon Gudmundsson; Brian J. Koopman; Frederick T. Matsuda; Sara M. Simon; Aamir Ali; Sean Bryan; Yuji Chinone; Gabriele Coppi; Nicholas Cothard; Mark J. Devlin; Simon Dicker; Giulio Fabbian; Nicholas Galitzki; Charles A. Hill; Brian Keating; Akito Kusaka; Jacob Lashner; Adrian T. Lee; Michele Limon; Philip D. Mauskopf; Jeff McMahon; Federico Nati; Michael D. Niemack; John L. Orlowski-Scherer; Stephen C. Parshley; Giuseppe Puglisi; Christian L. Reichardt; Maria Salation; Suzanne Staggs; Aritoki Suzuki; Eve M. Vavagiakis; Edward J. Wollack; Zhilei Xu; Ningfeng Zhu
    • Journal Title

      Proceedings of SPIE

      Volume: 10708 Pages: 107083Y

    • DOI

      10.1117/12.2312971

    • Int'l Joint Research
  • [Journal Article] The Simons Observatory : instrument overview2018

    • Author(s)
      Nicholas Galitzki; Aamir Ali; Kam S. Arnold; Peter C. Ashton; Jason E. Austermann; Carlo Baccigalupi; Taylor Baildon; Darcy Barron; James A. Beall; Shawn Beckman; Sarah Marie M. Bruno; Sean Bryan; Paolo G. Calisse; Grace E. Chesmore; Yuji Chinone; Steve K. Choi; Gabriele Coppi; Kevin D. Crowley; Kevin T. Crowley; Ari Cukierman; Mark J. Devlin; Simon Dicker; Bradley Dober; Shannon M. Duff; Jo Dunkley; Giulio Fabbian; Patricio A. Gallardo; Martina Gerbino; Neil Goeckner-Wald; Joseph E. Golec; Jon E. Gudmundsson; Erin E. Healy; Shawn Henderson; Charles A. Hill; Gene C. Hilton; Shuay-Pwu Patty Ho; Logan A. Howe; Johannes Hubmayr; Oliver Jeong; Brian Keating; Brian J. Koopman; Kenji Kiuchi; Akito Kusaka; Jacob Lashner; Adrian T. Lee; Yaqiong Li; Michele Limon; Marius Lungu; Frederick Matsuda; Philip D. Mauskopf; Andrew J. May; Nialh McCallum; Jeff McMahon; Federico Nati; Michael D. Niemack; John L. Orlowski-Scherer; Stephen C. Parshley; Lucio Piccirillo; Mayuri Sathyanarayana Rao; Christopher Raum; Maria Salatino; Joseph S. Seibert; Carlos Sierra; Max Silva-Feaver; Sara M. Simon; Suzanne T. Staggs; Jason R. Stevens; Aritoki Suzuki; Grant Teply; Robert Thornton; Calvin Tsai; Joel N. Ullom; Eve M. Vavagiakis; Michael R. Vissers; Benjamin Westbrook; Edward J. Wollack; Zhilei Xu; Ningfeng Zhu
    • Journal Title

      Proceedings of SPIE

      Volume: 10708 Pages: 1070804

    • DOI

      10.1117/12.2312985

    • Int'l Joint Research
  • [Journal Article] Studies of systematic uncertainties for Simons Observatory : polarization modulator related effects2018

    • Author(s)
      Maria Salation; Jacob Lashner; Martina Gerbino; Sara M. Simon; Joy Didier; Aamir Ali; Peter C. Ashton; Sean Bryan; Yuji Chinone; Kevin Coughlin; Kevin T. Crowley; Giulio Fabbian; Nicholas Galitzki; Neil Goeckner-Wald; Jon E. Gudmundsson; Charles A. Hill; Brian Keating; Akito Kusaka; Adrian T. Lee; Jeffrey McMahon; Amber D. Miller; Giuseppe Puglisi; Christian L. Reichardt; Grant Teply; Zhilei Xu; Ningfeng Zhu
    • Journal Title

      Proceedings of SPIE

      Volume: 10708 Pages: 1070848

    • DOI

      10.1117/12.2312993

    • Int'l Joint Research
  • [Journal Article] Designs for next generation CMB survey strategies from Chile2018

    • Author(s)
      Jason R. Stevens; Neil Goeckner-Wald; Reijo Keskitalo; Nialh McCallum; Aamir Ali; Julian Borrill; Michael L. Brown; Yuji Chinone; Patricio A. Gallardo; Akito Kusaka; Adrian T. Lee; Jeff McMahon; Michael D. Niemack; Lyman Page; Giuseppe Puglisi; Maria Salatino; Suet Ying D. Mak; Grant Teply; Daniel B. Thomas; Eve M. Vavagiakis; Edward J. Wollack; Zhilei Xu; Ningfeng Zhu
    • Journal Title

      Proceedings of SPIE

      Volume: 10708 Pages: 1070841

    • DOI

      10.1117/12.2313898

    • Int'l Joint Research
  • [Journal Article] Cross-polarization systematics due to Mizuguchi-Dragone condition breaking by a continuously rotating half-wave plate at prime focus in the Huan Tran telescope2018

    • Author(s)
      Frederick T. Matsuda; Satoru Takakura; Kam Arnold; David Boettger; Yuji Chinone; Masashi Hazumi; Brian Keating; Akito Kusaka; Adrian T. Lee
    • Journal Title

      Proceedings of SPIE

      Volume: 10708 Pages: 1070849

    • DOI

      10.1117/12.2313177

    • Int'l Joint Research
  • [Journal Article] Studies of systematic uncertainties for Simons Observatory : detector array effects2018

    • Author(s)
      Kevin T. Crowley; Sara M. Simon; Max Silva-Feaver; Neil Goeckner-Wald; Aamir Ali; Jason Austermann; Michael L. Brown; Yuji Chinone; Ari Cukierman; Bradley Dober; Shannon M. Duff; Jo Dunkley; Josquin Errard; Giulio Fabbian; Patricio A. Gallardo; Shuay-Pwu Patty Ho; Johannes Hubmayr; Brian Keating; Akito Kusaka; Nialh McCallum; Jeff McMahon; Federico Nati; Michael D. Niemack; Giuseppe Puglisi; Mayuri Sathyanarayana Rao; Christian L. Reichardt; Maria Salatino; Praween Siritanasak; Suzanne Staggs; Aritoki Suzuki; Grant Teply; Daniel B. Thomas; Joel N. Ullom; Clara Vergès; Michael R. Vissers; Benjamin Westbrook; Edward J. Wollack; Zhilei Xu; Ningfeng Zhu
    • Journal Title

      Proceedings of SPIE

      Volume: 10708 Pages: 107083Z

    • DOI

      10.1117/12.2313414

    • Int'l Joint Research
  • [Journal Article] Development of calibration strategies for the Simons Observatory2018

    • Author(s)
      Sean A. Bryan; Sara M. Simon; Martina Gerbino; Grant Teply; Amir Ali; Yuji Chinone; Kevin Crowley; Giulio Fabbian; Patricio A. Gallardo; Neil Goeckner-Wald; Brian Keating; Brian Koopman; Akito Kusaka; Frederick Matsuda; Philip Mauskopf; Jeff McMahon; Federico Nati; Giuseppe Puglisi; Christian L. Reichardt; Maria Salatino; Zhilei Xu; Ningfeng Zhu
    • Journal Title

      Proceedings of SPIE

      Volume: 10708 Pages: 1070840

    • DOI

      10.1117/12.2313832

    • Int'l Joint Research
  • [Journal Article] Design and development of a polarization modulator unit based on a continuous rotating half-wave plate for LiteBIRD2018

    • Author(s)
      Yuki Sakurai; Tomotake Matsumura; Nobuhiko Katayama; Hiroaki Imada; Kunimoto Komatsu; Hiroaki Kanai; Ryota Takaku; Shinya Sugiyama; Tommaso Ghigna; Teruhito Iida; Hajime Sugai; Hiroyuki Ohsaki; Yutaka Terao; Toshiki Shimomura; Kuniaki Konishi; Haruyuki Sakurai; Junji Yumoyo; Muneyoshi Maki; Junichi Suzuki; Hirokazu Ishino; Shogo Nakamura; Akito Kusaka; Charles Hill; Masashi Hazumi; Hirokazu Kataza; Shin Utsunomiya; Ryo Yamamoto; Makoto Tashiro; Yukikatsu Terada
    • Journal Title

      Proceedings of SPIE

      Volume: 10708 Pages: 107080E

    • DOI

      10.1117/12.2312391

    • Int'l Joint Research
  • [Journal Article] BoloCalc : a sensitivity calculator for the design of Simons Observatory2018

    • Author(s)
      Charles A. Hill, Sarah Marie M. Bruno, Sara M. Simon, Aamir Ali, Kam S. Arnold, Peter C. Ashton, Darcy Barron, Sean Bryan, Yuji Chinone, Gabriele Coppi, Kevin T. Crowley, Ari Cukierman, Simon Dicker, Jo Dunkley, Giulio Fabbian, Nicholas Galitzki, Patricio A. Gallardo, Jon E. Gudmundsson, Johannes Hubmayr, Brian Keating, Akito Kusaka, Adrian T. Lee, Frederick Matsuda, Philip D. Mauskopf, Jeffrey McMahon, Michael D. Niemack, Giuseppe Puglisi, Mayuri Sathyanarayana Rao, Maria Salatino, Carlos Sierra, Suzanne Staggs, Aritoki Suzuki, Grant Teply, Joel N. Ullom, Benjamin Westbrook, Zhilei Xu, Ningfeng Zhu
    • Journal Title

      Proceedings of SPIE

      Volume: 10708 Pages: 1070842

    • DOI

      10.1117/12.2313916

    • Int'l Joint Research
  • [Journal Article] A large-diameter cryogenic rotation stage for half-wave plate polarization modulation on the POLARBEAR-2 experiment2018

    • Author(s)
      Charles A Hill, Akito Kusaka, Paul Barton, Bryce Bixler, Alex G Droster, Mael Flament, Suhas Ganjam, Arian Jadbabaie, Oliver Jeong, Adrian T Lee, Alex Madurowicz, Fred T Matsuda, Tomotake Matsumura, Adam Rutkowski, Yuki Sakurai, Danielle R Sponseller, Aritoki Suzuki, Raymond Tat
    • Journal Title

      Journal of Low Temperature Physics

      Pages: 1-9

    • DOI

      10.1007/s10909-018-1980-6

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Optimization study for the experimental configuration of CMB-S42018

    • Author(s)
      Darcy Barron, Yuji Chinone, Akito Kusaka, Julian Borril, Josquin Errard, Stephen Feeney, Simone Ferraro, Reijo Keskitalo, Adrian T. Lee, Natalie A. Roe, Blake D. Sherwin, Aritoki Suzuki
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 2018/02 Pages: 009

    • DOI

      10.1088/1475-7516/2018/02/009

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Results from the Atacama B-mode Search (ABS) Experiment2018

    • Author(s)
      Akito Kusaka, John Appel, Thomas Essinger-Hileman, James A. Beall, Luis E. Campusano, Hsiao-Mei Cho, Steve K. Choi, Kevin Crowley, Joseph W. Fowler, Patricio Gallardo, Matthew Hasselfield, Gene Hilton, Shuay-Pwu P. Ho, Kent Irwin, Norman Jarosik, Michael D. Niemack, Glen W. Nixon, Michael Nolta, Lyman A. Page Jr, Gonzalo A. Palma, Lucas Parker, Srinivasan Raghunathan, Carl D. Reintsema, Jonathan Sievers, Sara M. Simon, Suzanne T. Staggs, Katerina Visnjic, Ki-Won Yoon
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 2018/09 Pages: 005

    • DOI

      10.1088/1475-7516/2018/09/005

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A Measurement of the Cosmic Microwave Background B-mode Polarization Power Spectrum at Subdegree Scales from Two Years of POLARBEAR Data2017

    • Author(s)
      PAR Ade, M Aguilar, Y Akiba, K Arnold, C Baccigalupi, D Barron, D Beck, F Bianchini, D Boettger, J Borrill, S Chapman, Y Chinone, K Crowley, A Cukierman, R Dünner, M Dobbs, A Ducout, T Elleflot, J Errard, G Fabbian, SM Feeney, C Feng, T Fujino, N Galitzki, A Gilbert, N Goeckner-Wald, JC Groh, G Hall, N Halverson, T Hamada, M Hasegawa, M Hazumi, CA Hill, L Howe, Y Inoue, G Jaehnig, AH Jaffe, O Jeong, D Kaneko, N Katayama, B Keating, R Keskitalo, T Kisner, N Krachmalnicoff, A Kusaka, M Le Jeune, AT Lee, EM Leitch, D Leon, E Linder, L Lowry, F Matsuda, T Matsumura, Y Minami, J Montgomery, M Navaroli, H Nishino, H Paar, J Peloton, ATP Pham, D Poletti, G Puglisi, CL Reichardt, PL Richards, C Ross, Y Segawa, BD Sherwin, M Silva-Feaver, P Siritanasak, N Stebor, R Stompor, A Suzuki, O Tajima, S Takakura, S Takatori, D Tanabe, GP Teply, T Tomaru, C Tucker, N Whitehorn, A Zahn
    • Journal Title

      The Astrophysical Journal

      Volume: 848 Pages: 121 (15pp)

    • DOI

      10.3847/1538-4357/aa8e9f

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Performance of a continuously rotating half-wave plate on the POLARBEAR telescope2017

    • Author(s)
      Satoru Takakura, Mario Aguilar, Yoshiki Akiba, Kam Arnold, Carlo Baccigalupi, Darcy Barron, Shawn Beckman, David Boettger, Julian Borrill, Scott Chapman, Yuji Chinone, Ari Cukierman, Anne Ducout, Tucker Elleflot, Josquin Errard, Giulio Fabbian, Takuro Fujino, Nicholas Galitzki, Neil Goeckner-Wald, Nils W Halverson, Masaya Hasegawa, Kaori Hattori, Masashi Hazumi, Charles Hill, Logan Howe, Yuki Inoue, Andrew H Jaffe, Oliver Jeong, Daisuke Kaneko, Nobuhiko Katayama, Brian Keating, Reijo Keskitalo, Theodore Kisner, Nicoletta Krachmalnicoff, Akito Kusaka, Adrian T Lee, David Leon, Lindsay Lowry, Frederick Matsuda, Tomotake Matsumura, Martin Navaroli, Haruki Nishino, Hans Paar, Julien Peloton, Davide Poletti, Giuseppe Puglisi, Christian L Reichardt, Colin Ross, Praween Siritanasak, Aritoki Suzuki, Osamu Tajima, Sayuri Takatori, Grant Teply
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 2017/05 Pages: 008

    • DOI

      10.1088/1475-7516/2017/05/008

    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 宇宙を使った素粒子物理学 ~宇宙背景放射観測の最前線~2018

    • Author(s)
      日下 暁人
    • Organizer
      第24回素粒子物理国際研究センターシンポジウム
    • Invited
  • [Presentation] 宇宙背景放射 これから10年で分かること2017

    • Author(s)
      日下 暁人
    • Organizer
      第6回観測的宇宙論ワークショップ
    • Invited

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Published: 2023-03-30  

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