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星間空間におけるPAHの形成と進化のメカニズムを探る

Research Project

Project/Area Number 13J02763
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field Astronomy
Research InstitutionThe University of Tokyo

Principal Investigator

森 珠実 (2014-2015)  東京大学, 理学系研究科, 特別研究員(DC1)

森 殊実 (2013)  東京大学, 大学院理学系研究科, 特別研究員(DC1)

Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 2015: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2014: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2013: ¥1,000,000 (Direct Cost: ¥1,000,000)
Keywords赤外線天文学 / 星間物理学 / PAH / 星間物質 / 赤外線 / あかり衛星
Outline of Annual Research Achievements

前々年度と前年度に引き続き、あかり衛星に搭載された赤外線カメラIRCで取得された近赤外線スペクトルデータの評価を行い、これまでの成果を学位論文としてまとめ、2から15ミクロンの赤外線分光観測により、これまで個別に評価されてきたPAHのサイズや化学組成などの性質を包括的に調査する手法を提示した。

また、赤外線分光観測による星間空間に存在するPAHの形成と進化を探る新たな手法の開発を目的として、前々年度と前年度に行った重水素を含む炭化水素化合物の合成・測定実験のデータの解析と整約を行った。その結果、
重水素化によりPAHの放射効率の減少は、aromaticな構造では0.56倍、aliphaticな構造では0.38倍と少ないことを実験的に初めてあきらかにした。本結果は、Onaka et al. 2014における、あかり衛星の観測結果はPAHが星間空間における重水素の主要なリザーバーではないということを示すものである、という我々の主張を実験的にサポートするものである。

Research Progress Status

27年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

27年度が最終年度であるため、記入しない。

Report

(3 results)
  • 2015 Annual Research Report
  • 2014 Annual Research Report
  • 2013 Annual Research Report
  • Research Products

    (19 results)

All 2016 2015 2014 2013 Other

All Journal Article (7 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 7 results,  Acknowledgement Compliant: 3 results,  Open Access: 2 results) Presentation (10 results) Remarks (2 results)

  • [Journal Article] Deuterated Polycyclic Aromatic Hydrocarbons: Revisited2016

    • Author(s)
      Doney, K., D., Candian, A., Mori, T., Onaka, T., and Tielens, A. G. G. M.,
    • Journal Title

      Astronomy and Astrophysics

      Volume: 586 Pages: A65-A65

    • DOI

      10.1051/0004-6361/201526809

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Dust processing in the Carina nebula region2015

    • Author(s)
      Onaka, T., Mori, T. I., and Okada, Y.
    • Journal Title

      Planetary and Space Science

      Volume: 116 Pages: 84-91

    • DOI

      10.1016/j.pss.2015.03.025

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Near- to mid-infrared imaging and spectroscopy of two buried AGNs of the nearby merging galaxy NGC 6240 with Subaru/IRCS+AO and GTC/CanariCam2014

    • Author(s)
      Mori, Tamami I.; Imanishi, Masatoshi; Alonso-Herrero, Almudena; Packham, Chris; Ramos Almeida, Cristina; Nikutta, Robert; González-Martín, Omaira; Perlman, Eric; Saito, Yuriko; Levenson, Nancy A.
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 66 Issue: 5

    • DOI

      10.1093/pasj/psu068

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Erratum: “Observational Studies on the Near-Infrared Unidentified Emission Bands in Galactic HII regions”2014

    • Author(s)
      T. I. Mori, T. Onaka, I. Sakon, D. Ishihara, T. Shimonishi, R. Ohsawa, and A. C. Bell
    • Journal Title

      The Astrophysical Journal

      Volume: 792 Issue: 1 Pages: 80-80

    • DOI

      10.1088/0004-637x/792/1/80

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Search for the Infrared Emission Features from Deuterated Interstellar Polycyclic Aromatic Hydrocarbons2014

    • Author(s)
      T. Onaka, T. I. Mori, I. Sakon, R. Ohsawa, H. Kaneda, Y. Okada, and M. Tanaka
    • Journal Title

      The Astrophysical Journal

      Volume: 789 Issue: 2 Pages: 114-122

    • DOI

      10.1088/0004-637x/780/2/114

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Observational Studies on the Near-infrared Unidentified Emission Bands in Galactic H II Regions2014

    • Author(s)
      Mori, Tamami I. ; Onaka, Takashi ; Sakon, Itsuki ; Ishihara, Daisuke ; Shimonishi. Takashi ; Ohsawa, Ryou ; Bell, Aaron C. (共著者として参加)
    • Journal Title

      The Astrophysical Journal

      Volume: 784 Issue: 1 Pages: 53-64

    • DOI

      10.1088/0004-637x/784/1/53

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] AKARI Near-lnfrared Spectroscopy of Galactic HII regions2014

    • Author(s)
      T. I, Mori, T. Onaka, I. Sakon, D. Ishihara, T. Shimonishi, R. Ohsawa, and A. C. Bell
    • Journal Title

      Proc. of the Life Cycle of Dust in the Universe : Observations, Theory, and Laboratory Exenments

      Volume: (印刷中)

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Presentation] 超新星残骸G318.05+0.09における特異なCO分子の放射の検出2015

    • Author(s)
      森珠実, 尾中敬, 臼井文彦, A. Ardaseva
    • Organizer
      日本天文学会2015年度春期年会
    • Place of Presentation
      大阪, 大阪大学
    • Year and Date
      2015-03-18 – 2015-03-21
    • Related Report
      2014 Annual Research Report
  • [Presentation] Near- to mid-infrared imaging and spectroscopy of two buried AGNs of the nearby merging galaxy NGC 6240 with Subaru/IRCS+AO and GTC/CanariCam2015

    • Author(s)
      T. I. Mori, M. Imanishi, A. Alonso-Herrero, C. Packham, C. Ramos Almeida, R. Nikutta, O. González-Martín, E. Perlman, Y. Saito, N. A. Levenson
    • Organizer
      日本天文学会2015年度春期年会
    • Place of Presentation
      大阪, 大阪大学
    • Year and Date
      2015-03-18 – 2015-03-21
    • Related Report
      2014 Annual Research Report
  • [Presentation] Capturing the CO molecular emission of mysterious ejecta in G318.05+0.092015

    • Author(s)
      T. I. Mori, T. Onaka, F. Usui, and A. Ardaseva
    • Organizer
      31st Grain Formation Workshop
    • Place of Presentation
      神奈川, 強羅静雲荘
    • Year and Date
      2015-01-06 – 2015-01-08
    • Related Report
      2014 Annual Research Report
  • [Presentation] Search for Deuterated PAHs in the ISM from observations and experiments2014

    • Author(s)
      T. I. Mori, I. Sakon, T. Onaka, M. Hammonds, K. Sato, R. Ohsawa, N. Takahata,Y. Sano, S. Kimura, and S. Wada
    • Organizer
      International Conference on Interstellar Dust, Molecules and Chemistry 2014
    • Place of Presentation
      India, Tezpur, Tezpur University
    • Year and Date
      2014-12-15 – 2014-12-18
    • Related Report
      2014 Annual Research Report
  • [Presentation] Ice Absorption Features in NIR Spectra of Galactic objects2014

    • Author(s)
      T. I. Mori, T. Onaka, I. Sakon, R. Ohsawa, H. Kaneda, M. Yamagishi, Y. Okada, M. Tanaka, T. Shimonishi
    • Organizer
      the 3rd AKARI Conference
    • Place of Presentation
      UK, Oxford, Oxford University
    • Year and Date
      2014-07-09 – 2014-07-11
    • Related Report
      2014 Annual Research Report
  • [Presentation] 「あかり」衛星による我々の銀河系内のHII領域の近赤外分光観測II2014

    • Author(s)
      森珠実、尾中敬、左近樹、大澤亮、金田英宏、山岸光義、岡田陽子、田中昌宏、下西隆
    • Organizer
      日本天文学会2014年春期年会
    • Place of Presentation
      国際基督教大学(東京、三鷹)
    • Year and Date
      2014-03-21
    • Related Report
      2013 Annual Research Report
  • [Presentation] 星間空間における重水素を含む炭素質ダスト探索にむけた実験的研究2013

    • Author(s)
      Tamami I. Mori, Itsuki Sakon, Takashi Onaka, Mark Hammonds, Kazuki Sato, Ryou Ohsawa, Naoto Takahata, Yuji Sano, Seiji Kimura, Setsuko Wada
    • Organizer
      新学術領域「宇宙分子進化」第一回研究集会
    • Place of Presentation
      北海道大学低温科学研究所(北海道、札幌)
    • Year and Date
      2013-11-28
    • Related Report
      2013 Annual Research Report
  • [Presentation] 重水素を含む炭素質ダストの実験的研究2013

    • Author(s)
      森珠実、左近樹、尾中敬、佐藤一輝、大澤亮、木村誠二、和田節子
    • Organizer
      日本天文学会2013年秋期年会
    • Place of Presentation
      東北大学(宮城、仙台)
    • Year and Date
      2013-09-11
    • Related Report
      2013 Annual Research Report
  • [Presentation] AKARI Near-Infrared Spectroscopy of Galactic HII regions2013

    • Author(s)
      Tamami I. Mori, Takashi Onaka, Itsuki Sakon, Daisuke Ishihara, Takashi Shimonishi, Ryou Ohsawa, Aaron C. Bell
    • Organizer
      he Life Cycle of Dust in the Universe
    • Place of Presentation
      Academia Sinica (Taipei City, Taiwan)
    • Related Report
      2013 Annual Research Report
  • [Presentation] Experimental Study on deuterated hydrocarbon materials2013

    • Author(s)
      Tamami I. Mori, Itsuki Sakon, Takashi Onaka, Mark Hammonds, Kazuki Sato, Ryou Ohsawa, Naoto Takahata, Yuji Sano, Seiji Kimura, Setsuko Wada
    • Organizer
      The 5th Subaru internatinal Conference
    • Place of Presentation
      Sheraton Kona Resort (Keauhou Kona, Hawaii, USA)
    • Related Report
      2013 Annual Research Report
  • [Remarks]

    • URL

      http://www.ir.isas.jaxa.jp/AKARI/Outreach/results/IRC_GALHII_spec/GALHII.html

    • Related Report
      2013 Annual Research Report
  • [Remarks]

    • URL

      http://www.ir.isas.jaxa.jp/AKARI/Archive/Catalogues/IRC_GALHII_spec/

    • Related Report
      2013 Annual Research Report

URL: 

Published: 2014-01-29   Modified: 2024-03-26  

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