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2014 Fiscal Year Annual Research Report

超伝導共振器を使ったオンチップ型低分散超広帯域サブミリ波分光計の実証

Research Project

Project/Area Number 25247019
Research InstitutionThe University of Tokyo

Principal Investigator

河野 孝太郎  東京大学, 理学(系)研究科(研究院), 教授 (80321587)

Co-Investigator(Kenkyū-buntansha) 大島 泰  国立天文台, 野辺山宇宙電波観測所, 助教 (40450184)
Project Period (FY) 2013-04-01 – 2017-03-31
Keywords電波天文学 / ミリ波サブミリ波 / 銀河形成・進化 / ダスト / 超伝導
Outline of Annual Research Achievements

宇宙におけるダストに覆われた星形成活動の変遷を探るため、遠赤外線域で顕著に明るい[CII] 158μm輝線の観測により、ダストに隠された爆発的星形成銀河の系統的な分光観測を可能とする、新しいサブミリ波帯超広帯域分光計DESHIMAの技術実証機の開発を進めている。研究2年次となる平成26年度は、以下のような開発研究を行った。

(1) DESHIMAの実験室評価、特に350GHz帯での分光性能の評価を行った。迷光対策なども盛り込んだ、新しい構造を持つチップを設計・製造し、設計通りに、波長分解能 R = 700 程度の分光性能が達成されていることを確認した。
(2) ASTE望遠鏡に搭載するための光学系の検討を引き続き進めた。受信機室内で、同時期に搭載される可能性が高い超伝導遷移端センサー(TES)カメラと両立する光学系およびその支持機構の検討を進め、実現可能な解を得ることができた。
(3) 読み出し回路の評価実験を開始した。また、読み出したデータのフォーマットの策定を、望遠鏡とDESHIMAとの時刻同期方式の検討および解析をどのようなソフトウエアで進めるかの検討とあわせて進めた。ボロメーターカメラのデータ解析ソフトとして実績のあるBoAでの解析を念頭に、MBFITS形式でのデータ取得を行うことにした。

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

研究推進の中軸を担う特任教員として非常に優秀な人材の招聘に成功した。開発・研究を活発に進めることができており、順調に推移していると評価できる。

Strategy for Future Research Activity

いよいよ望遠鏡への搭載に向けたさまざまな準備を着実に進めていきたい。機械式冷凍機の駆動に必要なヘリウム配管やチラーなどの搭載方法の検討も今後さらに進めていく。

  • Research Products

    (18 results)

All 2015 2014

All Journal Article (7 results) (of which Peer Reviewed: 7 results) Presentation (11 results) (of which Invited: 8 results)

  • [Journal Article] Multimolecule ALMA observations toward the Seyfert 1 galaxy NGC 10972015

    • Author(s)
      Martin, S., Kohno, K., 他18名
    • Journal Title

      Astronomy & Astrophysics

      Volume: 573 Pages: id.A116, 13ページ

    • DOI

      10.1051/0004-6361/201425105

    • Peer Reviewed
  • [Journal Article] A multi-transition study of molecules toward NGC 1068 based on high-resolution imaging observations with ALMA2015

    • Author(s)
      Nakajima, T., Takano, S., Kohno, K., 他6名
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 67 Pages: id.8, 15ページ

    • DOI

      10.1093/pasj/psu136

    • Peer Reviewed
  • [Journal Article] Enhancement of CO(3-2)/CO(1-0) Ratios and Star Formation Efficiencies in Supergiant H II Regions2014

    • Author(s)
      Miura, R. E., Kohno, K., 他14名
    • Journal Title

      The Astrophysical Journal

      Volume: 788 Pages: id.167, 7ページ

    • DOI

      10.1088/0004-637X/788/2/167

    • Peer Reviewed
  • [Journal Article] Evidence for a Gas-rich Major Merger in a Proto-cluster at z = 2.52014

    • Author(s)
      Tadaki, K., Kodama, T., Tamura, Y., Hayashi, M., Koyama, Y., Shimakawa, R., Ichi, T., Kohno, K., 他2名
    • Journal Title

      The Astrophysical Journal

      Volume: 788 Pages: id.L23, 5ページ

    • DOI

      10.1088/2041-8205/788/2/L23

    • Peer Reviewed
  • [Journal Article] AzTEC/ASTE 1.1-mm survey of SSA22: Counterpart identification and photometric redshift survey of submillimetre galaxies2014

    • Author(s)
      Umehata, H., Tamura, Y., Kohno, K., 他22名
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 440 Pages: 3462 - 3478

    • DOI

      10.1093/mnras/stu447

    • Peer Reviewed
  • [Journal Article] Two γ-ray bursts from dusty regions with little molecular gas2014

    • Author(s)
      Hatsukade, B., Ohta, K., Endo, A., Nakanishi, K., Tamura, Y., Hashimoto, T., Kohno, K.
    • Journal Title

      Nature

      Volume: 510 Pages: 247 - 249

    • DOI

      10.1038/nature13325

    • Peer Reviewed
  • [Journal Article] Distributions of molecules in the circumnuclear disk and surrounding starburst ring in the Seyfert galaxy NGC 1068 observed with ALMA2014

    • Author(s)
      Takano, S., Nakajima, T., Kohno, K., 他6名
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 66 Pages: id.75, 14ページ

    • DOI

      10.1093/pasj/psu052

    • Peer Reviewed
  • [Presentation] CO/[CII] Tomography with the Large Submillimeter Telescope2015

    • Author(s)
      Tamura, Y.
    • Organizer
      The 3rd workshop on large aperture mm/submm telescopes in the ALMA era
    • Place of Presentation
      NAOJ, Mitaka, Japan
    • Year and Date
      2015-03-10 – 2015-03-11
    • Invited
  • [Presentation] Kinetic inductance detectors for mm-submm wave astronomy2015

    • Author(s)
      Endo, A.
    • Organizer
      The 3rd workshop on large aperture mm/submm telescopes in the ALMA era
    • Place of Presentation
      NAOJ, Mitaka, Japan
    • Year and Date
      2015-03-10 – 2015-03-11
    • Invited
  • [Presentation] Dust-obscured star formation and SMBH growth unveiled by NGVLA2015

    • Author(s)
      Kohno, K.
    • Organizer
      Next Generation Very Large Array workshop at the Seattle AAS meeting
    • Place of Presentation
      Seattle, USA
    • Year and Date
      2015-01-04
    • Invited
  • [Presentation] Submillimeter deep surveys using ALMA and CCAT2014

    • Author(s)
      Kohno, K.
    • Organizer
      Cornell University, department of physics colloquium
    • Place of Presentation
      Cornell University, Ithaca, NY, USA
    • Year and Date
      2014-12-18
  • [Presentation] Development of DESHIMA for ASTE telescope2014

    • Author(s)
      Ishii, S.
    • Organizer
      15th Workshop on Submillimeter-Wave Receiver Technologies in Eastern Asia
    • Place of Presentation
      Ise-shima, Mie, Japan
    • Year and Date
      2014-12-15 – 2014-12-17
  • [Presentation] Quantifying key components in galaxies using ALMA: molecular clouds, dust, outflows, and supermassive black holes2014

    • Author(s)
      Kohno, K.
    • Organizer
      Revolution in Astronomy with ALMA - the 3rd year -
    • Place of Presentation
      Tokyo International Forum, Japan
    • Year and Date
      2014-12-08 – 2014-12-11
    • Invited
  • [Presentation] Science case for Large Submm Telescope (LST): CO/[CII] tomography and serendipitous search of transient sources2014

    • Author(s)
      Kohno, K.
    • Organizer
      IRAM colloquium
    • Place of Presentation
      IRAM, Grenoble, France
    • Year and Date
      2014-11-27
  • [Presentation] Dust-obscured galaxies near and far2014

    • Author(s)
      Kohno, K.
    • Organizer
      Sesto ULIRG workshop - Behind the curtain of dust
    • Place of Presentation
      Sesto, Italy
    • Year and Date
      2014-07-14 – 2014-07-18
    • Invited
  • [Presentation] High-z review and science cases: roles of single dish telescopes in the ALMA era2014

    • Author(s)
      Kohno, K.
    • Organizer
      ASTE/ALMA development workshop 2014
    • Place of Presentation
      NAOJ, Mitaka, Japan
    • Year and Date
      2014-06-17 – 2014-06-18
    • Invited
  • [Presentation] DESHIMA: Ultra-wideband on-chip spectrometer based on MKID technology2014

    • Author(s)
      Akira, E.
    • Organizer
      ASTE/ALMA development workshop 2014
    • Place of Presentation
      NAOJ, Mitaka, Japan
    • Year and Date
      2014-06-17 – 2014-06-18
    • Invited
  • [Presentation] Multicolor mm/submm TES bolometer camera development for ASTE2014

    • Author(s)
      Oshima, T.
    • Organizer
      ASTE/ALMA development workshop 2014
    • Place of Presentation
      NAOJ, Mitaka, Japan
    • Year and Date
      2014-06-17 – 2014-06-18
    • Invited

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Published: 2016-06-01  

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