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2010 Fiscal Year Final Research Report

Measurements of Cosmic Microwave Background Polarization at QUIET

Research Project

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Project/Area Number 20244041
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionHigh Energy Accelerator Research Organization

Principal Investigator

HAZUMI Masashi  High Energy Accelerator Research Organization, 素粒子原子核研究所, 教授 (20263197)

Co-Investigator(Renkei-kenkyūsha) HIGUCHI Takeo  高エネルギー加速器研究機構, 素粒子原子核研究所, 助教 (40353370)
TAJIMA Osamu  高エネルギー加速器研究機構, 素粒子原子核研究所, 准教授 (80391704)
Project Period (FY) 2008 – 2010
Keywords宇宙背景放射 / インフレーション / 重力波 / 高エネルギー物理
Research Abstract

We performed precise measurements of the polarization of the cosmic microwave background, which is "the oldest light" emitted right after the birth of the universe. The observations were carried out for more than 2 years using the QUIET telescope located at the altitude of 5080m in Atacama, Chile. We successfully measured the E-mode polarization with the 2^<nd> best precision so far reported. The result was consistent with the expectation from the standard cosmology model. We also searched for the B-mode polarization predicted by inflation theories, and obtained the 2^<nd> best upper limit obtained so far.

  • Research Products

    (21 results)

All 2011 2010 2009 Other

All Journal Article (2 results) Presentation (18 results) Remarks (1 results)

  • [Journal Article] Calibration system with cryogenically-cooled loads for cosmic microwave background polarization detectors2011

    • Author(s)
      M.Hasegawa, O.Tajima, Y.Chinone, M.Hazumi, K.Ishidoshiro, M.Nagai
    • Journal Title

      Rev.Sci.Instrum 82

      Pages: 054501

  • [Journal Article] First Season QUIET Observations : Measurements of CMB Polarization Power Spectra at 43 GHz in the Multipole Range 25<=ell<=475

    • Author(s)
      QUIET Collaboration : C.Bischoff, A.Brizius, I.Buder, Y.Chinone, K.Cleary, R.N.Dumoulin, A.Kusaka, R.Monsalve, S.K.Naess, L.B.Newburgh, R.Reeves, K.M.Smith, I.K.Wehus, J.A.Zuntz, J.T.L.Zwart, L.Bronfman, R.Bustos, S.E.Church, C.Dickinson, H.K.Eriksen, P.G.Ferreira, T.Gaier, J.O.Gundersen, M.Hasegawa, M.Hazumi, K.M.Huffenberger, M.E.Jones, P.Kangaslahti, D.J.Kapner, C.R.Lawrence, M.Limon, J.May, J.J.McMahon, A.D.Miller, H.Nguyen, G.W.Nixon, T.J.Pearson, L.Piccirillo, S.J.E.Radford, A.C.S.Readhead, J.L.Richards, D.Samtleben, M.Seiffert, M.C.Shepherd, S.T.Staggs, O.Tajima, K.L.Thompson, K.Vanderlinde, R.Williamson, B.Winstein
    • Journal Title

      arXiv:1012.3191, submitted to Astrophysical Journal

  • [Presentation] QUIET and other CMBB-mode searches2011

    • Author(s)
      田島治
    • Organizer
      2011 Moriond-Electroweak Interactions and Unified Theories、 La Thuile, Italy
    • Year and Date
      2011-03-19
  • [Presentation] QUIET実験の初期観測結果(1) - サイエンスと装置概要2011

    • Author(s)
      羽澄昌史
    • Organizer
      日本天文学会(震災のため、講演予稿集をもって発表となす)
    • Year and Date
      2011-03-18
  • [Presentation] QUIET実験の初期観測結果(4) - データ解析:時系列データの処理とマップ作成2011

    • Author(s)
      長谷川雅也
    • Organizer
      日本天文学会(震災のため、講演予稿集をもって発表となす)
    • Year and Date
      2011-03-18
  • [Presentation] QUIET実験の初期観測結果(5) - パワースペクトラム推定と宇宙論的解析2011

    • Author(s)
      茅根裕司
    • Organizer
      日本天文学会(震災のため、講演予稿集をもって発表となす)
    • Year and Date
      2011-03-18
  • [Presentation] QUIET実験の初期観測結果(6) - 系統誤差と今後の展望2011

    • Author(s)
      田島治
    • Organizer
      日本天文学会(震災のため、講演予稿集をもって発表となす)
    • Year and Date
      2011-03-18
  • [Presentation] FirstresultsfromQUIET2011

    • Author(s)
      田島治
    • Organizer
      InternationalworkshoponCMB
    • Place of Presentation
      ホテルバークレイン西葛西
    • Year and Date
      2011-02-22
  • [Presentation] QUIET実験の解析の現状2010

    • Author(s)
      茅根裕司
    • Organizer
      COSMO/CosPA
    • Place of Presentation
      東京大学
    • Year and Date
      2010-09-27
  • [Presentation] QUIETPhase-IIに向けた偏光検出器テストシステムの開発2010

    • Author(s)
      長谷川雅也
    • Organizer
      日本物理学会
    • Place of Presentation
      九州工業大学戸畑キャンパス
    • Year and Date
      2010-09-13
  • [Presentation] QUIET実験の解析の現状2010

    • Author(s)
      茅根裕司
    • Organizer
      日本物理学会
    • Place of Presentation
      九州工業大学戸畑キャンパス
    • Year and Date
      2010-09-13
  • [Presentation] QUIET実験観測ストラテジーと装置較正の達成度2010

    • Author(s)
      田島治
    • Organizer
      日本物理学会
    • Place of Presentation
      九州工業大学戸畑キャンパス
    • Year and Date
      2010-09-13
  • [Presentation] QUIET実験の解析の現状2010

    • Author(s)
      茅根裕司
    • Organizer
      CMBワークショップ2010
    • Place of Presentation
      国立天文台(三鷹)
    • Year and Date
      2010-06-08
  • [Presentation] QUIET実験2010

    • Author(s)
      田島治
    • Organizer
      CMBワークショップ2010
    • Place of Presentation
      国立天文台(三鷹)
    • Year and Date
      2010-06-07
  • [Presentation] QUIET実験概要と2009年度現状報告2010

    • Author(s)
      田島治
    • Organizer
      日本物理学会
    • Place of Presentation
      岡山大学
    • Year and Date
      2010-03-20
  • [Presentation] QUIET実験に於ける検出器較正2010

    • Author(s)
      茅根裕司
    • Organizer
      日本物理学会
    • Place of Presentation
      岡山大学
    • Year and Date
      2010-03-20
  • [Presentation] QUIET実験Qバンド観測の現状報告2009

    • Author(s)
      羽澄昌史
    • Organizer
      日本物理学会
    • Place of Presentation
      甲南大学
    • Year and Date
      2009-09-13
  • [Presentation] QUIET実験概要と2008年度現状報告2009

    • Author(s)
      田島治
    • Organizer
      日本物理学会
    • Place of Presentation
      立教大学
    • Year and Date
      2009-03-27
  • [Presentation] QUIET実験に於ける検出器較正2009

    • Author(s)
      茅根裕司
    • Organizer
      日本物理学会
    • Place of Presentation
      立教大学
    • Year and Date
      2009-03-27
  • [Presentation] QUIET実験Phase-IIに向けた受信機最適化のための偏光源の開発2009

    • Author(s)
      長谷川雅也
    • Organizer
      日本物理学会
    • Place of Presentation
      立教大学
    • Year and Date
      2009-03-27
  • [Remarks] ホームページ等

    • URL

      http://quiet.kek.jp/

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Published: 2012-01-26   Modified: 2016-04-21  

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