• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2017 Fiscal Year Annual Research Report

Processing of ices based on AKARI near-infrared spectroscopy

Publicly Offered Research

Project AreaEvolution of molecules in space: from interstellar clouds to proto-planetary nebulae
Project/Area Number 16H00934
Research InstitutionThe University of Tokyo

Principal Investigator

尾中 敬  東京大学, 大学院理学系研究科(理学部), 教授 (30143358)

Project Period (FY) 2016-04-01 – 2018-03-31
Keywords星間物理 / 星間塵 / 赤外線観測
Outline of Annual Research Achievements

新しい波長較正を適用して「あかり」IRCの銀河面星生成領域を中心とした近赤外線スペクトルの解析を行った。まずIRCのslit-less分光による銀河面サーベイにより発見された2つの若い天体候補の赤外線スペクトルを詳細に解析した。この結果、H2OおよびCO2氷の吸収線の他に、4.6ミクロン帯にみられる幅広い吸収は、150K程度の一酸化炭素のガスの吸収とXCNと同定される物質の吸収でよく説明されることがわかった。これらの特徴は若い天体に固有のものであるが、一方、Herschel衛星による観測では遠赤外線では放射が検出されておらず、近赤外線から遠赤外線にかけてのエネルギー分布は背景星である可能性を示唆する。この2つの天体が存在する領域には、特に星生成領域は検出されていない一方、深い吸収を示すような濃い星間雲も存在せず、若い星か背景星かを確定するには、さらに高い波長分解脳の観測が必要であるとの結論に達した。これらと並行して、新しい波長較正に基づくスペクトルを用い、銀河面内の複数の星生成領域の氷に吸収バンドの解析を行い、星生成過程の進行とともに、CO2氷がH2O氷と比較して減少していく傾向があることを示す結果を得た。さらに3.3, 3.4ミクロンにみられる、芳香族および脂肪族に起因する輝線バンドと進化の関係を調べ、脂肪族が進化とともに減少している傾向があることも得た。星生成の進行とともに、星間の氷および有機物が変成していくことを観測的に初めて示す結果を得た。

Research Progress Status

29年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

29年度が最終年度であるため、記入しない。

  • Research Products

    (29 results)

All 2018 2017 Other

All Int'l Joint Research (3 results) Journal Article (8 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 8 results,  Open Access: 8 results) Presentation (16 results) (of which Int'l Joint Research: 10 results) Remarks (1 results) Funded Workshop (1 results)

  • [Int'l Joint Research] The Scaly Nuclear Research Center/Instite de Recherche en Astrophysique/Observatoire de Paris(フランス)

    • Country Name
      FRANCE
    • Counterpart Institution
      The Scaly Nuclear Research Center/Instite de Recherche en Astrophysique/Observatoire de Paris
  • [Int'l Joint Research] Tezpur University(インド)

    • Country Name
      INDIA
    • Counterpart Institution
      Tezpur University
  • [Int'l Joint Research] NASA Ames Research Center(米国)

    • Country Name
      U.S.A.
    • Counterpart Institution
      NASA Ames Research Center
  • [Journal Article] Near-infrared to mid-infrared observations of galaxy mergers: NGC 2782 and NGC 77272018

    • Author(s)
      T. Onaka, T. Nakamura, I. Sakon, R. Wu, R. Ohsawa, H. Kaneda, V. Lebouteiller, and T. L. Roellig
    • Journal Title

      The Astrophysical Journal

      Volume: 853 Pages: 31 (14pp)

    • DOI

      10.3847/1538-4357/aaa004

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The State-of-Play of Anomalous Microwave Emission (AME) Research2018

    • Author(s)
      C. Dickinson, Y. Ali-Haimoud, A. Barr, E. S. Battistelli, A. Bell, L. Bernstein, S. Casassus, K. Cleary, B. T. Draine, R.Genova-Santos, S. E. Harper, B. Hensley, J. Hill-Valler, T. Hoang, F. P. Israel, L. Jew, A. Lazarian, J. P. Leahy, J. Leech, C. H. Lopez-Caraballo, I. McDonald, E. J. Murphy, T. Onaka, R. etc.
    • Journal Title

      New Astronomy Review

      Volume: 80 Pages: 1-28

    • DOI

      10.1016/j.newar.2018.02.001

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Constraining physical conditions for the PDR region of Trumpler 14 in the Carina Nebula2018

    • Author(s)
      R. Wu, E. Bron, T. Onaka, F. Le Petit, F. Galliano, D. Languignon, T. Nakamura, and Y. Okada
    • Journal Title

      Astronomy and Astrophysics

      Volume: 印刷中 Pages: 印刷中

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Mid-infrared multi-wavelength imaging of Ophiuchus IRS 48 transitional disk2018

    • Author(s)
      M. Honda, K. Okada, T. Miyata, G. D. Mulders, J. R. Swearingen, T. Kamizuka, R. Ohsawa, T. Fujiyoshi, H. Fujiwara, M. Uchiyama, and T. Onaka
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 印刷中 Pages: 印刷中

    • DOI

      10.1093/pasj/psy033

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Enhanced dust emissivity power-law index along the western H-alpha filament of NGC 15692018

    • Author(s)
      T. Suzuki, H. Kaneda, T. Onaka, M. Yamagishi, D. Ishihara, T. Kokusho, and T. Tsuchikawa
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 印刷中 Pages: 印刷中

    • DOI

      10.1093/mnras/sty800

    • Peer Reviewed / Open Access
  • [Journal Article] Faint warm debris disks around nearby bright stars explored by AKARI and IRSF2017

    • Author(s)
      D. Ishihara, N. Takeuchi, H. Kobayashi, T. Nagayama, H. Kaneda, S.-I. Inutsuka, H. Fujiwara, and T. Onaka
    • Journal Title

      Astronomy and Astrophysics

      Volume: 601 Pages: A72 (18pp)

    • DOI

      10.1051/0004-6361/201526215

    • Peer Reviewed / Open Access
  • [Journal Article] A likely detection of a local interplanetary dust cloud passing near the Earth in the AKARI mid-infrared all-sky map2017

    • Author(s)
      D. Ishihara, T. Kondo, H. Kaneda, T. Suzuki, K. Nakamichi, S. Takaba, H. Kobayashi, S. Masuda, T. Ootsubo, J. Pyo, J., and T. Onaka
    • Journal Title

      Astronomy and Astrophysics

      Volume: 603 Pages: A82 (5pp)

    • DOI

      10.1051/0004-6361/201628954

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A circumstellar disk around HD 169142 in the mid-infrared (N-band)2017

    • Author(s)
      Y. K. Okamoto, H. Kataza, M. Honda, T. Yamashita, T. Fujiyoshi, T. Miyata, S. Sako, H. Fujiwara, I. Sakon, M. Fukagawa, M. Momose, and T. Onaka
    • Journal Title

      The Astronomical Journal,

      Volume: 154 Pages: 16 (12pp)

    • DOI

      10.3847/1538-3881/aa7578

    • Peer Reviewed / Open Access
  • [Presentation] 窒素含有炭素質ダストの合成実験2018

    • Author(s)
      遠藤いずみ, 左近 樹, 尾中 敬, 木村誠二, 小川奈々子, 大河内直彦, 藪田ひかる, 癸生川陽子, 小林憲正, 和田節子
    • Organizer
      日本天文学会2018年春季年会
  • [Presentation] The Stellar Spectroscopic Variabilities Investigated with the AKARI Near-infrared Catalogs of the Large Magellanic Cloud2018

    • Author(s)
      J. Zhang, T. Onaka, I.Sakon, F.Usui, T. Shimonishi, and Yoshifusa Ita
    • Organizer
      日本天文学会2018年春季年会
  • [Presentation] Properties of infrared emission of novae detected in AKARI all-sky survey2017

    • Author(s)
      I. Sakon, S. Shimamoto, T. Onaka, R. Ohsawa, D. Ishihara, F. Usui, T. Ootsubo, and Y. Doi
    • Organizer
      The Cosmic Wheel and the Legacy of the AKARI Archive: from galaxies and stars to planets and life
    • Int'l Joint Research
  • [Presentation] A look at possible microwave dust emission via AKARI infrared all-sky surveys2017

    • Author(s)
      A. Bell, T. Onaka, F. Galliano, R. Wu, Y. Doi, D. Ishihara, H. Kaneda, M.Hammonds, and M. Giard
    • Organizer
      The Cosmic Wheel and the Legacy of the AKARI Archive: from galaxies and stars to planets and life
    • Int'l Joint Research
  • [Presentation] The AKARI phase 3 near-infrared spectroscopic catalog of the Large Magellanic Cloud and the stellar spectroscopic variability2017

    • Author(s)
      J. Zhang, T. Onaka, I.Sakon, F. Usui, T. Shimonishi, and Y. Ita
    • Organizer
      The Cosmic Wheel and the Legacy of the AKARI Archive: from galaxies and stars to planets and life
    • Int'l Joint Research
  • [Presentation] Infrared property of nitrogen-including carbonaceous dust produced via microwave discharge and its comparison with the observed unidentified infrared (UIR) bands2017

    • Author(s)
      I. Endo, I. Sakon, T. Onaka, S. Kimura, S. Wada, N. Ogawa, N. Ohkouchi, and H. Yabuta
    • Organizer
      The Cosmic Wheel and the Legacy of the AKARI Archive: from galaxies and stars to planets and life
    • Int'l Joint Research
  • [Presentation] Analysis of ice absorption features toward YSOs candidates using AKARI2017

    • Author(s)
      T. Kimura, T.Onaka, I. Sakon, and T. Shimonishi
    • Organizer
      The Cosmic Wheel and the Legacy of the AKARI Archive: from galaxies and stars to planets and life
    • Int'l Joint Research
  • [Presentation] AKARI near- and mid-infrared slitless spectroscopic catalogue2017

    • Author(s)
      M. Yamagishi, T. Mizuki, I. Yamamura, F. Usui, and T. Onaka
    • Organizer
      The Cosmic Wheel and the Legacy of the AKARI Archive: from galaxies and stars to planets and life
    • Int'l Joint Research
  • [Presentation] Debris Disks and the Zodiacal Light - from AKARI to SPICA2017

    • Author(s)
      D. Ishihara, H. Kaneda, M. Fukagawa, S. Takaba, H. Kobayashi, H. Fujiwara, T. Ootsubo, J. Pyo, A. Higuchi, and T. Onaka
    • Organizer
      The Cosmic Wheel and the Legacy of the AKARI Archive: from galaxies and stars to planets and life
    • Int'l Joint Research
  • [Presentation] Evolution of the Unidentified Infrared Bands in the Nucleus of the Starburst Galaxy NGC 10972017

    • Author(s)
      R. Wu, F. Galliano, and T. Onaka
    • Organizer
      The Cosmic Wheel and the Legacy of the AKARI Archive: from galaxies and stars to planets and life
    • Int'l Joint Research
  • [Presentation] AKARI/IRC Near-Infrared Point Source Spectral Catalogue2017

    • Author(s)
      F. Usui, T. Onaka, and The AKARI/IRC team
    • Organizer
      The Cosmic Wheel and the Legacy of the AKARI Archive: from galaxies and stars to planets and life
    • Int'l Joint Research
  • [Presentation] Revised calibration for near- and mid-infrared images from AKARI /IRC pointed observations in Phases 1 and 22017

    • Author(s)
      F. Egusa, F. Usui, K. Murata, T. Yamashita, I. Yamamura, and T. Onaka
    • Organizer
      The Cosmic Wheel and the Legacy of the AKARI Archive: from galaxies and stars to planets and life
    • Int'l Joint Research
  • [Presentation] 近傍銀河 NGC2782, NGC7727の中間赤外線観測2017

    • Author(s)
      尾中 敬
    • Organizer
      第34回Grain Formation Workshop
  • [Presentation] 大質量星形成領域 S106 の未同定赤外 (UIR) バンドの観測2017

    • Author(s)
      木村 智幸, 左近 樹, 尾中 敬
    • Organizer
      日本天文学会2017年秋季年会
  • [Presentation] The AKARI Phase 3 Near-infrared Spectroscopic Catalog of the Large Magellanic Cloud and the Stellar Spectroscopic Variability2017

    • Author(s)
      J. Zhang, T. Onaka, I.Sakon, F.Usui, T. Shimonishi, and Yoshifusa Ita
    • Organizer
      日本天文学会2017年秋季年会
  • [Presentation] Mid-infrared observations of mergers: NGC2782 and NGC77272017

    • Author(s)
      T. Onaka, T. Nakamura, I. Sakon , R. Ohsawa, R. Wu, and H. Kaneda
    • Organizer
      日本天文学会2017年秋季年会
  • [Remarks] 東京大学大学院理学系研究科天文学専攻 尾中研究室

    • URL

      http://komatta.astron.s.u-tokyo.ac.jp

  • [Funded Workshop] he Cosmic Wheel and the Legacy of the AKARI archive: from galaxies and stars to planets and life2017

URL: 

Published: 2018-12-17   Modified: 2022-02-28  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi