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Experimental verification of photosynthesis on a habitable planet around low mass stars

Research Project

Project/Area Number 16K13791
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Astronomy
Research InstitutionNational Astronomical Observatory of Japan

Principal Investigator

Kusakabe Nobuhiko  国立天文台, 光赤外研究部, 特任専門員 (40647385)

Research Collaborator Narita Norio  
Fukui Akihiko  
Takizawa Kenji  
Kosugi Makiko  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords系外惑星 / 光合成 / 低温度星 / 赤色矮星 / アストロバイオロジー / トランジット / 太陽系外惑星 / 極限環境
Outline of Final Research Achievements

We published a paper that a possibility of photosynthesis on exoplanet around low mass stars, considered with biological reactions. This research indicates that even if their light environment is different form Earth, their plants have same photosynthesis system as that of Earth’s plant.
Our team developed a four-color simultaneous imaging camera named MuSCAT2 for the 1.52-m Telescopio Carlos Sanchez at the Teide Observatory, Canaries, Spain. The instrument aims to find a large number of transiting exoplanets, including Earth-like habitable planets orbiting stars near the Sun, in collaboration with NASA’s Transiting Exoplanet Survey Satellite (TESS) launched in April 2018. And we have already published three MuSCAT2 related papers.
We had held some cross-disciplinary workshop for young researchers. We discussed and had some information exchange. The member has made a young Astrobiologist network.

Academic Significance and Societal Importance of the Research Achievements

太陽系外惑星が多く見つかっている中、その中での生物の可能性を探ることは一般的な興味関心も高い。一方で、系外惑星の地表のサンプルを取得することも現時点では不可能である。そのため、外から観測することで得られる情報として、生命に関わる情報を取得できる可能性のあるものの一つが植物である。
しかし、天文学者だけでは植物の生物学的な反応の詳細がわからないため、生物学の研究者との連携が必要不可欠であった。今回、天文学と生物学が融合することにより、宇宙における生命発見に向けた新しい可能性を、太陽系の近くにある低温度星周りの系外惑星に見いだすことができた。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (22 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (1 results) Journal Article (10 results) (of which Int'l Joint Research: 8 results,  Peer Reviewed: 10 results,  Open Access: 10 results,  Acknowledgement Compliant: 3 results) Presentation (7 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results) Remarks (4 results)

  • [Int'l Joint Research] Instituto de Astrofisica de Canarias(スペイン)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Qatar Exoplanet Survey: Qatar-7b?A Very Hot Jupiter Orbiting a Metal-rich F-Star2019

    • Author(s)
      Alsubai Khalid、Tsvetanov Zlatan I.、Latham David W. (21名中21番目)
    • Journal Title

      The Astronomical Journal

      Volume: 157 Issue: 2 Pages: 74-74

    • DOI

      10.3847/1538-3881/aaf80a

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Exoplanets around Low-mass Stars Unveiled by K22018

    • Author(s)
      Hirano, T., Dai, F., Gandolfi, D., Fukui, A., Livingston, J. H., Miyakawa, K., Endl, M., Cochran, W. D., Alonso-Floriano, F. J., Kuzuhara, M., et al.
    • Journal Title

      The Astronomical Journal

      Volume: 155 Issue: 3 Pages: 127-127

    • DOI

      10.3847/1538-3881/aaa9c1

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Distortion of Magnetic Fields in a Starless Core. III. Polarization?Extinction Relationship in FeSt 1-4572018

    • Author(s)
      Kandori Ryo、Tamura Motohide、Nagata Tetsuya、Tomisaka Kohji、Kusakabe Nobuhiko、Nakajima Yasushi、Kwon Jungmi、Nagayama Takahiro、Tatematsu Ken’ichi
    • Journal Title

      The Astrophysical Journal

      Volume: 857 Issue: 2 Pages: 100-100

    • DOI

      10.3847/1538-4357/aab962

    • NAID

      120006782244

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Subaru/HiCIAO HK s Imaging of LKHa 330: Multi-band Detection of the Gap and Spiral-like Structures2018

    • Author(s)
      Uyama Taichi、Hashimoto Jun、Muto Takayuki、Akiyama Eiji、Dong Ruobing、Leon Jerome de、Sakon Itsuki、Kudo Tomoyuki et al.
    • Journal Title

      The Astronomical Journal

      Volume: 156 Issue: 2 Pages: 63-63

    • DOI

      10.3847/1538-3881/aacbd1

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] MuSCAT2: four-color simultaneous camera for the 1.52-m Telescopio Carlos S?nchez2018

    • Author(s)
      Narita Norio、Fukui Akihiko、Kusakabe Nobuhiko、Watanabe Noriharu、Palle Enric、Parviainen Hannu、Monta??s-Rodr?guez Pilar、Murgas Felipe、Monelli Matteo、Aguiar Marta、Perez Prieto Jorge Andres
    • Journal Title

      Journal of Astronomical Telescopes, Instruments, and Systems

      Volume: 5 Issue: 01 Pages: 1-1

    • DOI

      10.1117/1.jatis.5.1.015001

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Red-edge position of habitable exoplanets around M-dwarfs2017

    • Author(s)
      Kenji Takizawa, Jun Minagawa, Motohide Tamura, Nobuhiko Kusakabe & Norio Narita
    • Journal Title

      SCIENTIFIC REPORTS

      Volume: 7 Issue: 1 Pages: 7561-7561

    • DOI

      10.1038/s41598-017-07948-5

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The K2-ESPRINT project. VI. K2-105 b, a hot Neptune around a metal-rich G-dwarf2017

    • Author(s)
      Norio Narita, Teruyuki Hirano, Akihiko Fukui, Yasunori Hori, Fei Dai, Liang Yu, John Livingston, Tsuguru Ryu, Grzegorz Nowak, Masayuki Kuzuhara, Bun'ei Sato, Yoichi Takeda, Simon Albrecht, et al.
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 69 Issue: 2 Pages: 29-29

    • DOI

      10.1093/pasj/psx002

    • Related Report
      2017 Research-status Report 2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Distortion of Magnetic Fields in a Starless Core II: 3D Magnetic Field Structure of FeSt 1-4572017

    • Author(s)
      Kandori et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 848 Issue: 2 Pages: 110-110

    • DOI

      10.3847/1538-4357/aa8d18

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Multi-color simultaneous photometry of the T-Tauri star with planetary candidate, CVSO 302017

    • Author(s)
      Masahiro Onitsuka, Akihiko Fukui, Norio Narita, Teruyuki Hirano, Nobuhiko Kusakabe, Tsuguru Ryu, Motohide Tamura
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 69 Issue: 2 Pages: 106-106

    • DOI

      10.1093/pasj/psx004

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Ground-based Transit Observation of the Habitable-zone Super-Earth K2-3d2016

    • Author(s)
      Akihiko Fukui, John Livingston, Norio Narita, Teruyuki Hirano, Masahiro Onitsuka, Tsuguru Ryu, Nobuhiko Kusakabe
    • Journal Title

      Astronomical Journal

      Volume: 152 Issue: 6 Pages: 171-171

    • DOI

      10.3847/0004-6256/152/6/171

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] Outreach activities of Astrobiology Center of Japan2018

    • Author(s)
      Nobuhiko Kusakabe
    • Organizer
      XXX IAU General Assembly
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] アストロバイオロジーセンター の広報活動2018

    • Author(s)
      日下部展彦
    • Organizer
      日本天文学会2018年春季年会
    • Related Report
      2017 Research-status Report
  • [Presentation] 地球とは異なる光環境における光合成2018

    • Author(s)
      滝澤謙二、成田憲保、日下部展彦
    • Organizer
      第59回日本植物生理学会年会
    • Related Report
      2017 Research-status Report
  • [Presentation] TRAPPIST-1 and Future Surveys of Habitable Transiting Earth-like Planets2017

    • Author(s)
      Norio Narita
    • Organizer
      AstroBiology Center International Workshop in Hiroshima
    • Place of Presentation
      広島大学(広島県・広島市)
    • Year and Date
      2017-03-21
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 近傍地球型惑星の観測に向けた新多色カメラMuSCAT-IIの開発2017

    • Author(s)
      福井 暁彦
    • Organizer
      H28年度 第5回宇宙における生命ワークショップ
    • Place of Presentation
      一橋大学一橋講堂(東京都・千代田区)
    • Year and Date
      2017-03-06
    • Related Report
      2016 Research-status Report
  • [Presentation] 恒星の光特性が生物進化に与える影響を光合成効率の波長依存性から推測する。2017

    • Author(s)
      小杉 真貴子
    • Organizer
      H28年度 第5回宇宙における生命ワークショップ
    • Place of Presentation
      一橋大学一橋講堂(東京都・千代田区)
    • Year and Date
      2017-03-06
    • Related Report
      2016 Research-status Report
  • [Presentation] 新しい四色同時撮像カメラMuSCAT2の開発2017

    • Author(s)
      成田憲保、福井暁彦、日下部展彦、ほか
    • Organizer
      日本天文学会2017年秋季年会
    • Related Report
      2017 Research-status Report
  • [Remarks] 第二の地球を発見するための新しい多色同時撮像カメラが完成

    • URL

      http://abc-nins.jp/press/20181217/20181217_Narita.html

    • Related Report
      2018 Annual Research Report
  • [Remarks] 地球とは異なる光環境における光合成:系外惑星における生命探査の指標となる波長の新たな予測

    • URL

      http://abc-nins.jp/press/20170808_RedEdge.html

    • Related Report
      2017 Research-status Report
  • [Remarks] 生命がいるかもしれない惑星の ” 影 ” の観測に成功 ~将来の地球外生命探索への重要な足がかり~

    • URL

      http://www.oao.nao.ac.jp/public/research/k2-3d/

    • Related Report
      2016 Research-status Report
  • [Remarks] 灼熱の海王星型惑星K2-105bを発見 ~第2の地球探しへの足がかり~

    • URL

      https://www.s.u-tokyo.ac.jp/ja/press/2017/5270/

    • Related Report
      2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

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