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Observational Study of Helically Moving HI Gas and the Galactic Magnetic Field

Research Project

Project/Area Number 26800104
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Astronomy
Research InstitutionKagoshima University

Principal Investigator

Nakanishi Hiroyuki  鹿児島大学, 理工学域理学系, 准教授 (90419846)

Project Period (FY) 2014-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords銀河系 / 宇宙磁場 / 中性水素原子ガス / 電波天文学
Outline of Final Research Achievements

We searched for helically moving HI clouds using Galactic All Sky Survey data obtained with Parkes 64m telescope in Australia in order to examine if the Galactic magnetic field is amplified with Galactic dynamo process. As a result, we found that they can be explained as magnetically floating loops and the emerging rate is comparable to a predicted value by the Galactic dynamo hypothesis. We developed an HI observation system for JAXA Usuda 64-m telescope to conduct high-velocity resolution observation for a helically moving HI cloud.

Report

(3 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • Research Products

    (18 results)

All 2016 2015 2014 Other

All Int'l Joint Research (1 results) Journal Article (9 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 9 results,  Open Access: 1 results,  Acknowledgement Compliant: 4 results) Presentation (8 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results)

  • [Int'l Joint Research] Australian National University(オーストラリア)

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Three-dimensional distribution of the ISM in the Milky Way galaxy. III. The total neutral gas disk2016

    • Author(s)
      H. Nakanishi & Y. Sofue
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 68 Issue: 1 Pages: 5-5

    • DOI

      10.1093/pasj/psv108

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Sensitivity for 21cm Bispectrum from Epoch of Reionization2015

    • Author(s)
      Shintaro Yoshiura, Hayato Shimabukuro, Keitaro Takahashi, Rieko Momose, Hiroyuki Nakanishi and Hiroshi Imai,
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 451 Issue: 1 Pages: 266-274

    • DOI

      10.1093/mnras/stv855

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Outer Rotation Curve of the Galaxy with VERA II: Annual Parallax and Proper Motion of the Star-Forming Region IRAS21379+51062015

    • Author(s)
      Hiroyuki Nakanishi, Nobuyuki Sakai, Tomoharu Kurayama, Mitsuhiro Matsuo, Hiroshi Imai, Ross A. Burns, Takeaki Ozawa, Mareki Honma, Katsunori Shibata,& Noriyuki Kawaguchi
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 67 Issue: 4 Pages: 13-13

    • DOI

      10.1093/pasj/psv012

    • Related Report
      2015 Annual Research Report 2014 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Outer rotation curve of the Galaxy with VERA. III. Astrometry of IRAS 07427-2400 and test of the density-wave theory2015

    • Author(s)
      N. Sakai, H. Nakanishi, M. Matsuo, N. Koide, D. Tezuka, T. Kurayama, K.M. Shibata, Y. Ueno, & M. Honma
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 67 Issue: 4 Pages: 69-69

    • DOI

      10.1093/pasj/psv049

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Trigonometric Distance and Proper Motion of IRAS 20056+3350: a Massive Star Forming Region on the Solar Circle2015

    • Author(s)
      R.A.Burns, T. Nagayama, T. Handa, T. Omodaka, A. Nakagawa, H. Nakanishi, M. Hayashi, & M. Shizugami
    • Journal Title

      Publications of The Korean Astronomical Society

      Volume: 30 Issue: 2 Pages: 121-121

    • DOI

      10.5303/pkas.2015.30.2.121

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] JVLA S- and X-band polarimetry of the merging cluster Abell 22562015

    • Author(s)
      Takeaki Ozawa, Hiroyuki Nakanishi, Takuya Akahori, Kenta Anraku, Motokazu Takizawa, Ikumi Takahashi, Sachiko Onodera, Yuya Tsuda, Yoshiaki Sofue
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 67 Issue: 6 Pages: 110-110

    • DOI

      10.1093/pasj/psv082

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Trigonometric parallax of IRAS 22555+6213 with VERA: Three-dimensional view of sources along the same line of sight2014

    • Author(s)
      James O. Chibueze, Hirofumi Sakanoue, Takumi Nagayama, Toshihiro Omodaka, Toshihiro Handa, Tatsuya Kamezaki, Ross A. Burns, Hideyuki Kobayashi, Hiroyuki Nakanishi, Mareki Honma, Yuji Ueno, Tomoharu Kurayama, Mitsuhiro Matsuo,& Nobuyuki Sakai
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 66 Issue: 6 Pages: 104-104

    • DOI

      10.1093/pasj/psu106

    • Related Report
      2014 Research-status Report
    • Peer Reviewed
  • [Journal Article] Trigonometric Distance and Proper Motion of Iras 20056+3350: A Massive Star-forming Region on the solar Circle2014

    • Author(s)
      Ross A. Burns, Takumi Nagayama, Toshihiro Handa, Toshihiro Omodaka, Akiharu Nakagawa, Hiroyuki Nakanishi, Masahiko Hayashi,& Makoto Shizugami
    • Journal Title

      The Astrophysical Journal

      Volume: 797 Issue: 1 Pages: 39-39

    • DOI

      10.1088/0004-637x/797/1/39

    • Related Report
      2014 Research-status Report
    • Peer Reviewed
  • [Journal Article] Phase transition between atomic and molecular hydrogen in nearby spiral galaxies2014

    • Author(s)
      Ayako Tanaka, Hiroyuki Nakanishi, Nario Kuno,& Akihiko Hirota
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 66 Issue: 3 Pages: 66-66

    • DOI

      10.1093/pasj/psu039

    • NAID

      40020140552

    • Related Report
      2014 Research-status Report
    • Peer Reviewed
  • [Presentation] Helically moving HI cloud found in the outer Galactic disk2016

    • Author(s)
      H. Nakanishi, N. McClure-Griffiths, C. Saita, & M. Machida
    • Organizer
      日本天文学会春期年会
    • Place of Presentation
      首都大学東京(東京都八王子市)
    • Year and Date
      2016-03-15
    • Related Report
      2015 Annual Research Report
  • [Presentation] 可視・電波観測で探る銀河・銀河系の構造2016

    • Author(s)
      中西裕之
    • Organizer
      第6回インターネット望遠鏡プロジェクトシンポジウム
    • Place of Presentation
      慶応大学日吉キャンパス(神奈川県横浜市)
    • Year and Date
      2016-02-20
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] Galaxy Evolution with SKA2015

    • Author(s)
      H. Nakanishi
    • Organizer
      ALPACA Workshop
    • Place of Presentation
      国立天文台(東京都三鷹市)
    • Year and Date
      2015-12-03
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Helically Moving HI Cloud2015

    • Author(s)
      H. Nakanishi, N. McClure-Griffiths, C. Saita, & M. Machida
    • Organizer
      SKAサイエンス会議 宇宙磁場2015
    • Place of Presentation
      鹿児島大学(鹿児島県鹿児島市)
    • Year and Date
      2015-09-18
    • Related Report
      2015 Annual Research Report
  • [Presentation] 螺旋運動するHIガス雲の観測的研究2015

    • Author(s)
      H. Nakanishi, N. McClure-Griffiths, C. Saita, & M. Machida
    • Organizer
      第18 回九州地区宇宙物理学合同セミナー
    • Place of Presentation
      九州地区国立大学九重共同研修所(大分県玖珠郡九重町)
    • Year and Date
      2015-09-03
    • Related Report
      2015 Annual Research Report
  • [Presentation] Molecular fraction of gaseous disk of nearby spiral galaxies2015

    • Author(s)
      Hiroyuki Nakanishi
    • Organizer
      Nagoya Workshop on the Interstellar Hydrogen
    • Place of Presentation
      Nadya Park, Sakae, Nagoya
    • Year and Date
      2015-03-26 – 2015-03-28
    • Related Report
      2014 Research-status Report
  • [Presentation] 臼田宇宙空間観測所64m電波望遠鏡による中性水素原子ガス21cm線の観測2014

    • Author(s)
      中西裕之, 齊田智恵(鹿児島大学), 村田泰宏, 坪井昌人(宇宙科学研究所), 米倉覚則(茨城大学), 土橋一仁(東京学芸大学), ほか臼田64m鏡ライン観測WGメンバー
    • Organizer
      日本天文学会秋季年会
    • Place of Presentation
      山形大学(山形県山形市)
    • Year and Date
      2014-09-11 – 2014-09-13
    • Related Report
      2014 Research-status Report
  • [Presentation] SKA時代に向けた45m鏡への期待2014

    • Author(s)
      中西裕之
    • Organizer
      野辺山ユーザーズミーティング
    • Place of Presentation
      国立天文台野辺山宇宙電波観測所(長野県南佐久郡南牧村)
    • Year and Date
      2014-07-23 – 2014-07-24
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2017-05-10  

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