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Study of Global Star formation in Our Galaxy by servey observation of Emission lines of Anmonia molecules

Research Project

Project/Area Number 14340058
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Astronomy
Research InstitutionHokkaido University

Principal Investigator

HABE Asao  Hokkaido University, Graduate School of Sci., Associate Professor, 大学院・理学研究科, 助教授 (90180926)

Co-Investigator(Kenkyū-buntansha) FUJIMOTO Msayuki  Hokkaido University, Graduate School of Sci., Professor, 大学院・理学研究科, 教授 (00111708)
KANEKO Noboru  Hokkaido University, Graduate School of Sci., Associate Professor, 大学院・理学研究科, 助教授 (50001847)
NAKAI Naomasa  Tsukuba University, Department of Physics, Professor, 物理学系, 教授 (80192665)
KAMENO Seiji  National Observatory of Japan, Division of Radio Astronomy, Instructor, 宇宙電波天文学系, 助手 (20270449)
SORAI Kazuo  Hokkaido University, Graduate School of Sci., Instructor, 大学院・理学研究科, 助手 (80344464)
Project Period (FY) 2002 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥15,400,000 (Direct Cost: ¥15,400,000)
Fiscal Year 2004: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2003: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2002: ¥14,200,000 (Direct Cost: ¥14,200,000)
Keywordsmolecular cloud / star formation / our Galaxy / interstellar molecule / Radio astronomy / astrophysics / Anmonia molecule / 22GHz / オリオン分子雲 / 我々の銀河 / デジタル分光器
Research Abstract

In order to upgrade Hokkaido University 11m radio telescope, we have made the new radio receiver of 22Ghz, the hone for 22GHz receiver, the degital spctrum analyzers, and the control system of Hokkaido university 11m radio telescope. Purpose of our study is to investigate of property of global star formation in our galaxy, by observation of Anmonia molecules whic is in dense cores in molecular clouds in our galaxy. In this study, we will observe four, different spectral lines from highly exitation of rotational states of Anmonia molecules to know rotational excitation temperature, since study of density and temperature is very important to study star formation in molecular clouds.
We have made the test observation of Anmonia molecules in the Cygnus region which is in the spiral arm in our Galaxy. We have succeeded to detect (J,K)=(1,1),(2,2) and (3,3)lines. By using the intensity of these lines, we deduce temperature of molecules which is 20K and is consistent with previous observation.
We will make survey observation of Anmolia molecules in dense molecular clouds in our galaxy to study global star formation.

Report

(4 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • Research Products

    (20 results)

All 2005 2004 2003 2002 Other

All Journal Article (12 results) Publications (8 results)

  • [Journal Article] Emergence of a Narrow H2O Maser Feature in NGC 10522005

    • Author(s)
      S.Kameno
    • Journal Title

      The Astrophysical Journal 620

      Pages: 6-6

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Emergence of a Narrow H2O Maser Feature in NGC 10522005

    • Author(s)
      S.Kameno
    • Journal Title

      The Astrophysical Journal Vol620

      Pages: 6-6

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Is HE 0107-5240 A Primordial Star? The Characteristics of Extremely Metal-Poor Carbon-Rich Stars2004

    • Author(s)
      T.Suda
    • Journal Title

      The Astrophysical Journal 611

      Pages: 17-17

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] An Insight into the Reaction Rates of the Ne-Na and Mg-Al Chains from the Abundance Anomalies in Globular Cluster Red Giants2004

    • Author(s)
      M.Aikawa
    • Journal Title

      The Astrophysical Journal 608

      Pages: 6-6

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Observations of Cyclopropenylidene (Cyclic-C3H2) in the External Galaxies NGC 253 and M 822004

    • Author(s)
      T.Oike
    • Journal Title

      Publications of the Astronomical Society of Japan 56

      Pages: 8-8

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Is HE 0107-5240 A Primordial Star? The Characteristics of Extremely Metal-Poor Carbon-Rich Stars2004

    • Author(s)
      T.Suda
    • Journal Title

      The Astrophysical Journal Vol 611

      Pages: 17-17

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] An Insight into the Reaction Rates of the Ne-Na and Mg-Al Chains from the Abundance Anomalies in Globular Cluster Red Giants2004

    • Author(s)
      M.Aikawa
    • Journal Title

      The Astrophysical Journal Vol608

      Pages: 6-6

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Observations of Cyclopropenylidene (Cyclic-C3H2)in the External Galaxies NGC 253 and M 822004

    • Author(s)
      T.Oike
    • Journal Title

      Publications of the Astronomical Society of Japan 56

      Pages: 8-8

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Observations of Cyclopropenylidene(Cyclic-C3H2) in the External Galaxies NGC 253 and M 822004

    • Author(s)
      T.Oike
    • Journal Title

      Publications of the Astronomical Society of Japan 56

      Pages: 8-8

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Dense Molecular Gas in Lenticular Galaxies2004

    • Author(s)
      N.Kuno
    • Journal Title

      Publications of the Astronomical Society of Japan 54

      Pages: 6-6

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Cloud mass function in a gas rich dwarf galaxy2003

    • Author(s)
      T.Saitoh
    • Journal Title

      Astrophysical Supercomputing using Particle Simulations, IAU Symposium #208

      Pages: 1-1

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Dense Molecular Gas in Lenticular Galaxies2002

    • Author(s)
      N.Kuno
    • Journal Title

      Publications of the Astronomical Society of Japan 54

      Pages: 6-6

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Publications] Suwa, T.: "Cluster molphology as a test of different Cosmological models"Astrophys.J.. 588. 7-17 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Saito, T.: "Cloud mass Function in a gas rich dwarf galaxy"Astrophysical Supercomputing using Particle. 441-441 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Aoki, W.: "Europium Isotope Ratios in s-Process"Astrophys.J.Letter. 592. 67-70 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Kameno, S.: "Free-Free absorption and the unified Scheme"Publications Astron.Soc.Japan. 20. 213-221 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Asao HABE: "Phase Space Structure of Dark Halos Obtained by Cosmological Simulations and Generalized Statistics"Proceedings of 2002 Asian Pacific Regional Meeting. 251-252 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Naomasa Nakai: "Detection of Water Maser Flare in the Seyfert/LINER, NGC 6240"Publications of Astronomical Society of Japan. 54. 27-38 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kazuo Sorai: "Radial Distributions of the HCN/CO Ratio in Nearby CO Bright Galaxies"Publications of Astronomical Society of Japan. 54. 179-186 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Asada, Keiichi: "A Helical Magnetic Field in the Jet of 3C 273"Publications of Astronomical Society of Japan. 54. 39-47 (2002)

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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