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Far-Infrared Spectroscopic Survey of Near-by Interstellar Clouds

Research Project

Project/Area Number 05452022
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Astronomy
Research InstitutionThe Institute of Space & Astronautical Science

Principal Investigator

NAKAGAWA Takao  The Institute of Space & Astronautical Science, Space Astrophysics, Research Fellow, 宇宙圏研究系, 助手 (20202210)

Co-Investigator(Kenkyū-buntansha) HIROMOTO Norihisa  Communications Research Laboratory, Optical Technology, Principal Investigator, 電磁波技術部, 主任研究官
SHIBAI Hiroshi  The Institute of Space & Astronautical Science, Basic Space Science, Associate P, 共通基礎研究系, 助教授 (70154234)
MURAKAMI Hiroshi  The Institute of Space & Astronautical Science, Space Astrophysics, Associate Pr, 宇宙圏研究系, 助教授 (40135299)
OKUDA Haruyuki  The Institute of Space & Astronautical Science, Space Astrophysics, Professor, 宇宙圏研究系, 教授 (50025293)
Project Period (FY) 1993 – 1994
Project Status Completed (Fiscal Year 1994)
Budget Amount *help
¥7,400,000 (Direct Cost: ¥7,400,000)
Fiscal Year 1994: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1993: ¥6,900,000 (Direct Cost: ¥6,900,000)
KeywordsInterstellar Gas / Far-Infrared Spectroscopy / [CII] Spectral Line / Star-Forming Regions / Photo-Dissociation Regions / Survey Observation
Research Abstract

The far-infrared [C II] spectral line (^2P_<3/2>-^2P_<1/2>,157.7409 mum), which is emitted by singly ionized carbon (C^+), is the dominant coolant of neutral interstellar clouds. Hence observations of the line is crucial to reveal the physical states, especially the energy budget, of interstellar clouds.
We have been successfully making survey observations of the [C II] line using a dedicated observing instrument BICE.The observational results are very important for interstellar physics. However, since there are various components in a line sight toward the Galactic plane, the observational results are rather complicated.
Hence the [C II] observations of indivudual clouds which have a single component in a line sight are very important to understand the physical properties of the [C II] emitting regions. To make templates of [C II] emitting regions, we observed the Orion regions, which is the most representative massive-star-forming regions. The observation was carried out on September 3,1994, from the Sanriku Balloon Center, using the BICE.
The observation revelaed that there are several groups of [C II] emitting regions with different physical parameters in the Orion regions. Using the results, we reinvestigated our previous [C II] observations of the Galactic plane.

Report

(3 results)
  • 1994 Annual Research Report   Final Research Report Summary
  • 1993 Annual Research Report
  • Research Products

    (23 results)

All Other

All Publications (23 results)

  • [Publications] Mizutani,et al.: "[CII]158 micron and [OI] 63 micron Observations of the Galactic Center Region" Astrophys. J.Supplement. 91. 613-624 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Yui,et al.: "A [CII] 158 micron Map of the P-Ophiuchi Cloud" Astrophys. J.Letters. 419. L37-L40 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Okuda,et al.: "Large Scale [CII] Line Emission in the Galaxy Observed by Stratospheric Balloons" Infrared Physics. 35. 391-405 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Mochizuki,et al.: "A Survey of the Large Magellanic Cloud in the [CII] 158 micron Line" Astrophys. J.Letters. 430. L37-L40 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Nakagawa,et al.: "Deficit of Far-Infrared [CII] Line Emission toward the Galactic Center" Astrophys. J.Letters. 455(印刷中). (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 中川貴雄他: "気球搭載望遠鏡BICEによる遠赤外[CII]スペクトル線サーベイ観測" 宇宙科学研究所報告. 32. 89-103 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Mizutani, et al.: "[CII] 158 micron and [OI] 63 micron Observations of the Galactic Center Region" Astrophysical Journal Supplement. 91. 613-624 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Yui, et al.: "A [CII] 158 micron Map of the rho-Ophiuchi Cloud" Astrophysical Journal Letters. 419. L37-L40 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Okuda, et al.: "Large Scale [CII] Line Emission in the Galaxy Observed by Stratospheric Balloons" Infrared Physics. 35. 391-405 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Mochizuki, et al.: "A Survey of the Large Magellanic Cloud in the [CII] 158 micron Line" Astrophysical Journal Letters. 430. L37-L40 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Nakagawa, et al.: "Deficit of Far-Infrared [CII] Line Emission toward the Galactic Center" Astrophysical Journal Letters. 455.(in press). (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] H.Okuda et al.: "Large Scale [CII]Line Emission in the Galaxy Observed by Stratospheric Balloons" Infrared Physics Technology. 35. 391-405 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] H.Murakami et al.: "The Infrared Telescope in Space (IRTS)" Astrophysical Journal. 428. 354-362 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] H.Shibai et al: "Far-Infrared Line Mapper (FILM) on IRIS" Astrophysical Journal. 428. 377-383 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] K.M ochizuki et al.: "A Survey of the Large Magellanic Cloud in the [CII] 1.58 Micron Line" Astrophysical Journal (Letters). 430. L37-L40 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] K.Mizutani et al.: "[CII]158 Micron and [OI] 63 Micron Observztions of the Galactic Center Region)" Astrophysical Journal Supplement. 91. 613-624 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] H.Shiba et al.: "An Eight-Element Stressed Ge:Ga Linear Array:Development and Performance" Proceeding of SPIE. 2268. 142-149 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] H.OKuda: "Large Scale Distribution of the [CII] Fine Structure Line in the Galaxy-ISAS/UA Galactic Plane Survey by Ballon" Adv.Space Res.13. 443-451 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Y.Y.Yui,et al.: "A [CII] 158 micron Line Map of the Ophiuchi Cloud" The Astrophysical Journal. 419. L37-L40 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] T.Nakagawa,et al.: "Far-Infrared [CII] Line Survey of the Galaxy" AIP Conf.Proceedings "Back to the Galaxy". 278. 303-306 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Y.Doi,et al.: "Clumpy Structure of Interstellar Clouds in the Cygnus-X Region" AIP Conf.Proceedings "Back to the Galaxy". 278. 307-310 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] T.Nakagawa: "Balloon-borne Far-Infrared Spectroscopy" ASP Conf.Ser."Astronomical Infrared Spectroscopy". 41. 373-381 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 中川貴雄 他: "気球赤外線天文望遠鏡BICEによる遠赤外[CII]スペクトル線サーベイ観測" 宇宙科学研究所報告. 印刷中. (1994)

    • Related Report
      1993 Annual Research Report

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Published: 1993-04-01   Modified: 2016-04-21  

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