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Study of gas motion and molecular abundance in the central region of external galaxies using the absorption lines of ammonia

Research Project

Project/Area Number 19540243
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Astronomy
Research InstitutionNational Astronomical Observatory of Japan

Principal Investigator

TAKANO Shuro  National Astronomical Observatory of Japan, 野辺山宇宙電波観測所, 助教 (00222084)

Co-Investigator(Kenkyū-buntansha) NAKANISHI Koichiro  国立天文台, 電波研究部, 助教 (60399277)
NAKAI Naomasa  筑波大学, 数理物質科学研究科, 教授 (80192665)
TAKANO Toshiaki  千葉大学, 工学研究科, 准教授 (40183058)
Project Period (FY) 2007 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2007: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Keywords電波観測 / 銀河 / アンモニア / 電波天文学 / 宇宙空間 / 原子・分子物理
Research Abstract

It is important to study gas motion in the central region of galaxies to understand the possible existence and environment around the central black hole. We selected absorption lines of ammonia for this purpose. In Arp 220 known as an active galaxy we analyzed obtained data. During data acquisition and analysis we considered to increase the reliability of the line width of the absorption lines. The (J,K)=(3,3) line was analyzed in detail, and as a result the full width was derived to be about 600km/s. This value is usual in galaxies, and we concluded that there is no significant violent motion in gas detectable with ammonia in the central region in Arp 220

Report

(4 results)
  • 2009 Annual Research Report   Final Research Report ( PDF )
  • 2008 Annual Research Report
  • 2007 Annual Research Report
  • Research Products

    (7 results)

All 2010 2009 2008

All Presentation (7 results)

  • [Presentation] ラインサーベイチーム、野辺山45m望遠鏡レガシープロジェクト:ラインサーベイ観測(II)2010

    • Author(s)
      高野秀路, 坂井南美, 山本智, 河野孝太郎, 呂聖元, 他
    • Organizer
      日本天文学会
    • Place of Presentation
      山口大学
    • Year and Date
      2010-09-16
    • Related Report
      2009 Final Research Report
  • [Presentation] 野辺山45m望遠鏡レガシープロジェクト:ラインサーベイ観測(II)2009

    • Author(s)
      高野秀路, 坂井南美, 山本智, 河野孝太郎, 呂聖元, 他ラインサーベイチーム
    • Organizer
      日本天文学会
    • Place of Presentation
      山口大学
    • Year and Date
      2009-09-16
    • Related Report
      2009 Annual Research Report
  • [Presentation] Nobeyama 45 m Telescope Legacy Projects: Line Survey2009

    • Author(s)
      Takano, S. Aikawa, Y., Chen, V., Hirano, N., Hirota, T., Kamegai, K., Kobayashi, K., Kohno, K., Kuan, Y. -J., Liu, S. -Y., Ohashi, N., Ohishi, M., Ozeki, H., Sakai, N., Sakai, T., Shiba, S., Su, Y. -N., Sugimura, M., Takahashi, S., Takakuwa, S., Umemoto, T., Wang, K. -S., Yamada, M., Yamamoto, S., Zhang, Q. -Z.
    • Organizer
      Workshop for Interstellar Matter 2008
    • Place of Presentation
      北海道大学
    • Year and Date
      2009-09-04
    • Related Report
      2009 Final Research Report
  • [Presentation] Nobeyama 45m Legacy Project: Line Survey2009

    • Author(s)
      高野秀路
    • Organizer
      The 10th Asian-Pacific Regional IAU Meeting
    • Place of Presentation
      Kunming, China
    • Year and Date
      2009-08-05
    • Related Report
      2009 Final Research Report
  • [Presentation] ラインサーベイチーム、野辺山45m望遠鏡レガシープロジェクト:ラインサーベイ観測2009

    • Author(s)
      高野秀路, 酒井剛, 坂井南美, 山本智, 河野孝太郎, S. -Y. Liu, 他
    • Organizer
      日本天文学会
    • Place of Presentation
      東京
    • Year and Date
      2009-03-24
    • Related Report
      2009 Final Research Report
  • [Presentation] Recent astrochemical studies with Nobeyama 45 m telescope and line survey projects from this winter2008

    • Author(s)
      高野秀路
    • Organizer
      日本分光学会年次講演会
    • Place of Presentation
      東京工業大学(大岡山)
    • Year and Date
      2008-11-14
    • Related Report
      2009 Final Research Report 2007 Annual Research Report
  • [Presentation] Nobeyama 45m Legacy Project : Line Survey2008

    • Author(s)
      高野秀路
    • Organizer
      The 10^<th> Asian-Pacific Regional IAU Meeting
    • Place of Presentation
      Kunming, China
    • Year and Date
      2008-08-05
    • Related Report
      2008 Annual Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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