Study on the protoplanetary disk structure based on high-resolution mid-infrared observations

• Project/Area Number: 15H05439
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Astronomy
• Research Institution: Okayama University of Science (2018-2019); Kurume University (2016-2017); Kanagawa University (2015)
• Principal Investigator: Honda Mitsuhiko 岡山理科大学, 生物地球学部, 准教授 (40449369)
• Project Period (FY): 2015-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000); Fiscal Year 2018: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2017: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000); Fiscal Year 2016: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2015: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
• Keywords: 光赤外線天文学 / 原始惑星系円盤 / 天文 / 光学赤外線天文学 / 星惑星形成

Outline of Final Research Achievements

We made high-resolution mid-infrared imaging observations of the protoplanetary disks around Herbig Ae/Be stars mainly using mid-IR instruments COMICS on Subaru Telescope. Based on our continuous observational studies, we established a new interpretation that the disks around the group I Herbig Ae/Be stars are actually transitional disks. In addition, we found that the misalignment of the inner and outer disks affects the mid-infrared disk morphology significantly.
Furthermore, we have been developping an internal cold chopper system for the future
next-generation ground-based mid-IR facility/instrument. A first test model was designed and fabricated for detailed analysis and trouble shooting. We found some problems on the first test model, but also noticed that even this model can be used for the chopping observations. We are now making a second test model and also planning an on-sky test observing with these new cold chopper.

Academic Significance and Societal Importance of the Research Achievements

我々の原始惑星系円盤の中間赤外線観測により、group I に属するHerbig Ae/Be型星原始惑星系円盤はフレア円盤であるという解釈を、遷移円盤に相当するという正しい解釈を示すことが出来た。これは現在のALMAの高解像観測によってもほぼ確認されている。
また、冷却チョッパーの開発は、日本が次世代地上中間赤外線装置開発において国際貢献をしていくための重要な技術の一つとなりうる。また、日本の赤外線観測コミュニティにとっても有用なデバイスとなると期待している。

Research Products

• [Journal Article] Unidentified infrared emission features in mid-infrared spectrum of comet 21P/Giacobini-Zinner (2020)
  • Author(s): Ootsubo, T., Kawakita, H., Shinnaka, Y., Watanabe, J., & Honda, M.
  • Journal Title: Icarus Volume: 338 Pages: 113450-113450
  • DOI: 10.1016/j.icarus.2019.113450
  • Peer Reviewed
• [Journal Article] Dust Continuum Emission and the Upper Limit Fluxes of Submillimeter Water Lines of the Protoplanetary Disk around HD 163296 Observed by ALMA (2019)
  • Author(s): Notsu Shota, Akiyama Eiji, Booth Alice, Nomura Hideko, Walsh Catherine, Hirota Tomoya, Honda Mitsuhiko, Tsukagoshi Takashi, Millar T. J.
  • Journal Title: The Astrophysical Journal Volume: 875 Issue: 2 Pages: 96-96
  • DOI: 10.3847/1538-4357/ab0ae9
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Mid-infrared multi-wavelength imaging of Ophiuchus IRS 48 transitional disk (2018)
  • 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 Issue: 3 Pages: 44-44
  • DOI: 10.1093/pasj/psy033
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Mid-infrared Spectroscopic Observations of Comet 17P/Holmes Immediately After Its Great Outburst in 2007 October (2018)
  • Author(s): Shinnaka Yoshiharu、Ootsubo Takafumi、Kawakita Hideyo、Yamaguchi Mitsuru、Honda Mitsuhiko、Watanabe Jun-ichi
  • Journal Title: The Astronomical Journal Volume: 156 Issue: 5 Pages: 242-242
  • DOI: 10.3847/1538-3881/aadfea
  • Peer Reviewed / Open Access
• [Journal Article] Candidate Water Vapor Lines to Locate the H2O Snowline through High-dispersion Spectroscopic Observations. III. Submillimeter H2 16O and H2 18O Lines (2018)
  • Author(s): Notsu, Shota; Nomura, Hideko; Walsh, Catherine; Honda, Mitsuhiko; Hirota, Tomoya; Akiyama, Eiji; Millar, T. J.
  • Journal Title: アストロフィジカル・ジャーナル Volume: 855 Issue: 1 Pages: 62-77
  • DOI: 10.3847/1538-4357/aaaa72
  • Peer Reviewed / 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 Issue: 1 Pages: 16-16
  • DOI: 10.3847/1538-3881/aa7578
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Candidate Water Vapor Lines to Locate the H2O Snowline through High-dispersion Spectroscopic Observations. II. The Case of a Herbig Ae Star (2017)
  • Author(s): Notsu, Shota; Nomura, Hideko; Ishimoto, Daiki; Walsh, Catherine; Honda, Mitsuhiko; Hirota, Tomoya; Millar, T. J.
  • Journal Title: The Astrophysical Journal Volume: 836 Issue: 1 Pages: 118-118
  • DOI: 10.3847/1538-4357/836/1/118
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Development of superconducting voice coil motor of a cold chopper for MICHI (2016)
  • Author(s): Mori, K., Miyata, T., Honda, M., Kamizuka, T., Takahashi, H., Sako, S., Ohsawa, R., Okada, K., Uchiyama, M., Kataza, H., Ohsaki, H., Hiroe, T., Packham, C.
  • Journal Title: Proceedings of the SPIE (the Society of Photo-Optical Instrumentation Engineers) Volume: 9912 Pages: 991218-991225
  • DOI: 10.1117/12.2231889
  • Int'l Joint Research
• [Journal Article] WATER ICE AT THE SURFACE OF THE HD 100546 DISK (2016)
  • Author(s): M. Honda, T. Kudo, S. Takatsuki, A. K. Inoue, T. Nakamoto, M. Fukagawa, M. Tamura, H. Terada, N. Takato
  • Journal Title: The Astrophysical Journal Volume: 821 Issue: 1 Pages: 2-2
  • DOI: 10.3847/0004-637x/821/1/2
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] High-resolution 25 μm Imaging of the Disks around Herbig Ae/Be Stars (2015)
  • Author(s): Honda, M.; Maaskant, K.; Okamoto, Y. K.; Kataza, H.; Yamashita, T.; Miyata, T.; Sako, S.; Fujiyoshi, T.; Sakon, I.; Fujiwara, H.; Kamizuka, T.; Mulders, G. D.; Lopez-Rodriguez, E.; Packham, C.; Onaka, T.
  • Journal Title: The Astrophysical Journal Volume: 804 Issue: 2 Pages: 143-143
  • DOI: 10.1088/0004-637x/804/2/143
  • Peer Reviewed / Int'l Joint Research
• [Presentation] 原始惑星系円盤内の物質循環混合について (2020)
  • Author(s): 本田充彦
  • Organizer: 第３６回Grain Formation Workshop
• [Presentation] Herbig Fe 星HD142527 円盤散乱光の3 ミクロン帯偏光分光観測 (2019)
  • Author(s): 本田充彦, 寺田宏, 工藤智幸, 服部尭, 橋本淳, 田村元秀, 渡辺誠
  • Organizer: 第３５回Grain Formation Workshop
• [Presentation] Herbig Fe 星HD142527 円盤散乱光の3 ミクロン帯偏光分光観測 (2019)
  • Author(s): 本田充彦, 寺田宏, 工藤智幸, 服部尭, 橋本淳, 田村元秀, 渡辺誠
  • Organizer: 日本天文学会
• [Presentation] Lesson Learned from COMICS (2019)
  • Author(s): 本田充彦
  • Organizer: Mid Infrared Astronomy Past 20 years and Future 20 years
• [Presentation] すばる＋ TMT で切り拓く星・惑星系星 (2019)
  • Author(s): 本田充彦、大朝由美子
  • Organizer: 日本天文学会
• [Presentation] TMT 熱外観測装置MICHI (2019)
  • Author(s): 本田充彦
  • Organizer: 2019 年度光学赤外線天文連絡会シンポジウム
• [Presentation] Introduction of Japanese activities on SPICA planet formation sciences (2019)
  • Author(s): 本田充彦
  • Organizer: SPICA サイエンス中間報告会
• [Presentation] TMT 用熱赤外観測装置MICHI および地上中間赤外での系外惑星・地球型惑星検 出可能性について (2019)
  • Author(s): 本田充彦
  • Organizer: 地球型惑星の直接撮像装置ワークショップ2019
• [Presentation] Water ice mapping toward protoplanetary disk (2019)
  • Author(s): Honda, M.
  • Organizer: In the Spirit of Lyot 2019
  • Int'l Joint Research
• [Presentation] Evolution of solids & planet formation revealed by Subaru (2019)
  • Author(s): Honda, M.
  • Organizer: SUBARU TELESCOPE 20TH ANNIVERSARY
  • Int'l Joint Research / Invited
• [Presentation] TMT 中間赤外線観測装置MICHI 提案の現状報告 (2018)
  • Author(s): 本田充彦
  • Organizer: 2018 年度光学赤外線天文連絡会シンポジウム
• [Presentation] Subaru/IRCS 熱赤外偏光観測機能の立ち上げ2 偏光分光試験観測結果 (2018)
  • Author(s): 本田充彦, 寺田宏, 工藤智幸, 服部尭, 橋本淳, 田村元秀, 渡辺誠
  • Organizer: 日本天文学会
• [Presentation] Protoplanetary disk science with Subaru/COMICS and TMT/MICHI (2018)
  • Author(s): Honda, M.
  • Organizer: Thirty Meter Telescope-MICHI and China: A workshop on thermal-IR astronomy
  • Int'l Joint Research
• [Presentation] MICHI: a Thermal-Infrared Instrument for the TMTFour Key Science Drivers (2018)
  • Author(s): Honda, M.
  • Organizer: XXX IAU General Assembly
  • Int'l Joint Research
• [Presentation] Introduction of Subaru/COMICS (2018)
  • Author(s): Honda, M.
  • Organizer: The Next Generation of Thermal-IR Astronomy: How can we Reach the Photon Noise Limit?
  • Int'l Joint Research
• [Presentation] 次世代中間赤外線装置における低温チョッピング実現に向けた超伝導リニアモーターの開発 (2017)
  • Author(s): 毛利清、宮田隆志、上塚貴史、高橋英則、酒向重行、大澤亮、岡田一志、内山允史、大崎博之、広江貴、本田充彦
  • Organizer: 日本天文学会2017 年春季年会
  • Place of Presentation: 九州大学
  • Year and Date: 2017-03-15
• [Presentation] "MICHI Science cases : protoplanetary disks" (2017)
  • Author(s): 本田充彦
  • Organizer: The 2017 Thirty Meter Telescope Science Forum
• [Presentation] Subaru thermal-infrared studies on ice and silicate in the protoplanetary disks (2017)
  • Author(s): 本田充彦
  • Organizer: Future Exploration of Star and Planet Formation with Subaru
  • Int'l Joint Research / Invited
• [Presentation] Toward solid observations of snow line (2017)
  • Author(s): 本田充彦
  • Organizer: 10th RESCEU/Planet2 Symposium Planet Formation around Snowline
  • Int'l Joint Research / Invited
• [Presentation] Subaru/IRCS 熱赤外偏光観測機能の立ち上げ1 撮像偏光試験観測結果 (2017)
  • Author(s): 本田充彦
  • Organizer: 日本天文学会秋季年会
• [Presentation] TMT 中間赤外線観測装置MICHI 提案の現状報告 (2017)
  • Author(s): 本田充彦
  • Organizer: 光学赤外線天文連絡会シンポジウム
• [Presentation] TMT/MICHI current concept (2017)
  • Author(s): 本田充彦
  • Organizer: The Cosmic Wheel and the Legacy of the AKARI archive: from galaxies and stars to planets and life
  • Int'l Joint Research / Invited
• [Presentation] TMT/MICHI チョッパー用超伝導コイルの開発 (2016)
  • Author(s): 毛利清、宮田隆志、上塚貴史、高橋英則、酒向重行、大澤亮、岡田一志、内山允史、大崎博之、広江貴、本田充彦
  • Organizer: 第６回可視赤外線観測装置技術ワークショップ
  • Place of Presentation: 国立天文台
  • Year and Date: 2016-11-24
• [Presentation] TMT/MICHI 冷却チョッピングに用いる超伝導ボイスコイルモーターの性能評価 (2016)
  • Author(s): 毛利清、宮田隆志、上塚貴史、高橋英則、酒向重行、大澤亮、岡田一志、内山允史、大崎博之、広江貴、本田充彦
  • Organizer: 日本天文学会2016 年秋季年会
  • Place of Presentation: 愛媛大学
  • Year and Date: 2016-09-14
• [Presentation] 原始惑星系円盤の化学反応計算と、赤外線分光観測によるスノーライン・C/O比分布の検出可能性 (2016)
  • Author(s): 野津翔太, 石本大貴, 野村英子, 本田充彦
  • Organizer: 日本天文学会2016年度春季年会
  • Place of Presentation: 首都大学東京
  • Year and Date: 2016-03-14
• [Presentation] Mid-IR studies of disks around Herbig Ae/Be stars (2016)
  • Author(s): 本田充彦
  • Organizer: International Workshop on "Exoplanets and Disks: Their Formation and Diversity III"
  • Place of Presentation: Hotel Nikko Yaeyama
  • Year and Date: 2016-02-21
• [Presentation] Observations of water ice dust in the protoplanetary disk &introduction of mid-IR instrument MICHI for TMT (2015)
  • Author(s): Honda, M
  • Organizer: Grain Formation Workshop 2015
  • Place of Presentation: 札幌
  • Year and Date: 2015-12-09
• [Presentation] 中間赤外線撮像観測でさぐるOph IRS 48の遷移円盤の構造 (2015)
  • Author(s): 岡田一志, 本田充彦, 宮田隆志, 酒向重行, 上塚貴史, 大澤亮, 内山允史, 毛利清
  • Organizer: 日本天文学会2015年度秋季年会
  • Place of Presentation: 甲南大学
  • Year and Date: 2015-09-09
• [Presentation] TMT搭載中間赤外線観測装置における冷却チョッピングの検討 (2015)
  • Author(s): 毛利清, 宮田隆志, 上塚貴史, 高橋英則, 本田充彦, 酒向重行, 大澤亮, 岡田一志, 内山允史
  • Organizer: 日本天文学会2015年度秋季年会
  • Place of Presentation: 甲南大学
  • Year and Date: 2015-09-09