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Accurate distance measurements with VERA of nearby molecular clouds

Research Project

Project/Area Number 20740112
Research Category

Grant-in-Aid for Young Scientists (B)

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

Principal Investigator

HIROTA Tomoya  National Astronomical Observatory of Japan, 水沢VLBI観測所, 助教 (10325764)

Project Period (FY) 2008 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2008: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords電波天文学 / 位置天文学 / 銀河天文学 / 星形成 / 原始星 / 星間分子雲 / VLBI / メーザー
Research Abstract

We have carried out astrometic observations of H_2O maser sources associated with nearby molecular clouds with VERA. The aim of this project is to measure the accurate distances to molecular clouds within 1 kpc (3260 ly) from the Sun, and to reveal their 3 dimensional structures. It is also useful to refine physics and dynamics in star-formation processes. Thanks to accurate astrometry capability of VERA, we have succeeded in measuring trigonometric annual parallaxes of molecular clouds in the Cepheus (2490 ly) and Perseus (750 ly) regions.

Report

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

    (10 results)

All 2010 2009 2008 Other

All Journal Article (3 results) (of which Peer Reviewed: 2 results) Presentation (3 results) Remarks (4 results)

  • [Journal Article] Astrometry of H2O Maser Sources in Nearby Molecular Clouds with VERA2009

    • Author(s)
      Hirota, T., (他36名, 1番目), et al.
    • Journal Title

      Approaching Micro-Arcsecond Resolution with VSOP-2: Astrophysics and Technologies 402

      Pages: 456-456

    • Related Report
      2009 Final Research Report
  • [Journal Article] Astrometry of H2O Masers in Nearby Star-Forming Regions with VERA III. IRAS22198+6336 in Lynds1204G2008

    • Author(s)
      Hirota, T., (他37名, 1番目), et al.
    • Journal Title

      Publications of the Astronomical Society of Japan 60

      Pages: 961-974

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Astrometry of H_2O Masers in Nearby Star-Forming Regions with VERA III. IRAS22198+6336 in Lynds1204G2008

    • Author(s)
      Hirota, T., et.al.
    • Journal Title

      Publications of the Astronomical Society of Japan 60

      Pages: 961-974

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] VERAによるクラス0天体L1448Cの年周視差計測2010

    • Author(s)
      廣田朋也
    • Organizer
      日本天文学会2010年春季年会
    • Place of Presentation
      広島大学
    • Year and Date
      2010-03-25
    • Related Report
      2009 Annual Research Report 2009 Final Research Report
  • [Presentation] 光結合VLBI"OCTAVE"による星形成領域の非熱的電波源観測2009

    • Author(s)
      廣田朋也
    • Organizer
      日本天文学会春季年会
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2009-03-25
    • Related Report
      2009 Final Research Report
  • [Presentation] 光結合VLBI"OCTAVE"による星形成領域の非熱的電波源観測2009

    • Author(s)
      廣田朋也
    • Organizer
      骨本天文学会春季年会
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2009-03-25
    • Related Report
      2008 Annual Research Report
  • [Remarks]

    • URL

      http://veraserver.mtk.nao.ac.jp/index-J.html

    • Related Report
      2009 Final Research Report
  • [Remarks]

    • URL

      http://veraserver.mtk.nao.ac.jp/related/index-e.html

    • Related Report
      2009 Final Research Report
  • [Remarks]

    • URL

      http://veraserver.mtk.nao.ac.jp/index-J.html

    • Related Report
      2008 Annual Research Report
  • [Remarks]

    • URL

      http://veraserver.mtk.nao.ac.jp/related/index-e.html

    • Related Report
      2008 Annual Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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