Study of exoplanetary atmosphere by UV space telescope

• Project/Area Number: 16H04059
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Space and upper atmospheric physics
• Research Institution: Rikkyo University
• Principal Investigator: KAMEDA shingo 立教大学, 理学部, 教授 (30455464)
• Co-Investigator(Kenkyū-buntansha): 村上 豪 国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 助教 (50734026)
• Research Collaborator: OSADA naoya ; HORIKOSHI hiroki ; IKOMA masahiro ; NARITA norio ; ENYA keigo
• Project Period (FY): 2016-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000); Fiscal Year 2018: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000); Fiscal Year 2017: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000); Fiscal Year 2016: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
• Keywords: 系外惑星 / ハビタブルゾーン / 地球型惑星 / 表層環境 / 高層大気 / 外圏大気 / 紫外線分光 / 紫外線観測 / 紫外線検出器 / 紫外線 / 水素 / 酸素原子大気 / 低温度星 / 紫外線輻射 / 強紫外線 / 宇宙望遠鏡 / 真空紫外線分光 / 惑星大気

Outline of Final Research Achievements

Several large-scale projects are under study toward the discovery of an Earth-like exoplanet in the habitable zone, and observation of its atmosphere is especially intensively being studied. We proceeded to study and develop the observation method of the Earth-like planet outside the solar system by taking over those studied for planets in the solar system. As a result, high sensitivity spectrograph, this research team is in charge of developing, is planned to be onboard World Space Observatory UV (WSO-UV), the 1.7 m ultraviolet space telescope in Russia.

Academic Significance and Societal Importance of the Research Achievements

広大な宇宙において、地球そして人類は唯一の存在だろうか？地球のように表層に海洋を有し、生命を育む惑星は他に見つかっていない。太陽系外には3500個以上の惑星が見つかっており、その大きさと熱輻射量が地球と同程度の惑星も見つかっている。これらの惑星を調査し、生命保有惑星を発見することは天文・惑星科学分野の究極的な目標である。本研究は、他の計画と異なり、紫外線観測により惑星表層環境に迫るものであり、本研究により国際協力計画への参加による実現性が見えてきている。

Research Products

• [Int'l Joint Research] NASA(米国)
• [Int'l Joint Research] Geneva Observatory(スイス)
• [Int'l Joint Research] IKIRAS(ロシア連邦)
• [Int'l Joint Research] UCL(英国)
• [Int'l Joint Research] IKI(ロシア連邦)
• [Int'l Joint Research] ジュネーブ天文台(スイス)
• [Journal Article] Hayabusa2 arrives at the carbonaceous asteroid 162173 Ryugu?A spinning top?shaped rubble pile (2019)
  • Author(s): Watanabe S.、Hirabayashi M.、Hirata N. et al.
  • Journal Title: Science Volume: 364 Issue: 6437 Pages: 268-272
  • DOI: 10.1126/science.aav8032
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The surface composition of asteroid 162173 Ryugu from Hayabusa2 near-infrared spectroscopy (2019)
  • Author(s): Kitazato K. et al.
  • Journal Title: Science Volume: 364 Issue: 6437 Pages: 272-275
  • DOI: 10.1126/science.aav7432
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The geomorphology, color, and thermal properties of Ryugu: Implications for parent-body processes (2019)
  • Author(s): Seiji Sugita, R. Honda, T. Morota, S. Kameda, H. Sawada, E. Tatsumi, M. Yamada, C. Honda, Y. Yokota, T. Kouyama, N. Sakatani, K. Ogawa, H. Suzuki, T. Okada, N. Namiki, S. Tanaka, Y. Iijima, K. Yoshioka, M. Hayakawa, Y. Cho, M. Matsuoka, N. Hirata, N. Hirata, H. Miyamoto, Jun Kimura
  • Journal Title: Science Volume: 17 Issue: 6437 Pages: 252-252
  • DOI: 10.1126/science.aaw0422
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Observability of hydrogen-rich exospheres in Earth-like exoplanets (2019)
  • Author(s): dos Santos Leonardo A.、Bourrier Vincent、Ehrenreich David、Kameda Shingo
  • Journal Title: Astronomy & Astrophysics Volume: 622 Pages: A46-A46
  • DOI: 10.1051/0004-6361/201833392
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The Western Bulge of 162173 Ryugu Formed as a Result of a Rotationally Driven Deformation Process (2019)
  • Author(s): Hirabayashi M.、Tatsumi E.、Miyamoto H.、Komatsu G.、Sugita S.、Watanabe S.、Scheeres D. J.、Barnouin O. S.、Michel P.、Honda C.、Michikami T.、Cho Y.、Morota T.、Hirata N. et al.
  • Journal Title: The Astrophysical Journal Volume: 874 Issue: 1 Pages: L10-L10
  • DOI: 10.3847/2041-8213/ab0e8b
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] A chemical survey of exoplanets with ARIEL (2018)
  • Author(s): Tinetti Giovanna、Drossart Pierre、Eccleston Paul、(略), Shingo Kameda, et al.
  • Journal Title: Experimental Astronomy Volume: 46 Issue: 1 Pages: 135-209
  • DOI: 10.1007/s10686-018-9598-x
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Stellar imaging coronagraph and exoplanet coronal spectrometer: two additional instruments for exoplanet exploration onboard the WSO-UV 1.7-m orbital telescope (2018)
  • Author(s): Tavrov Alexander、Kameda Shingo、Yudaev Andrey、Dzyuban Ilia、Kiselev Alexander、Shashkova Inna、Korablev Oleg、Sachkov Mikhail、Nishikawa Jun、Tamura Motohide、Murakami Go、Enya Keigo、Ikoma Masahiro、Narita Norio
  • Journal Title: Journal of Astronomical Telescopes, Instruments, and Systems Volume: 4 Issue: 04 Pages: 1-1
  • DOI: 10.1117/1.jatis.4.4.044001
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Initial inflight calibration for Hayabusa2 optical navigation camera (ONC) for science observations of asteroid Ryugu (2018)
  • Author(s): Suzuki, H., M. Yamada, K. Kameda, T. Kouyama, E. Tatsumi, R. Honda, H. Sawada, N. Ogawa, T. Morota, C. Honda, N. Sakatani, M. Hayakawa, Y. Yokota, and S. Sugita
  • Journal Title: Icarus Volume: 300 Pages: 341-359
  • DOI: 10.1016/j.icarus.2017.09.011
  • Peer Reviewed
• [Journal Article] Initial products of Akatsuki 1-μm camera (2018)
  • Author(s): Iwagami N., Sakanoi T., Hashimoto G., Sawai K., Ohtsuki S., Takagi S., Uemizu K., Ueno M., Kameda S., Murakami S., Nakamura M., Ishii N., Abe T., Satoh T., Imamura T., Hirose C., Suzuki M., Hirata N., Yamazaki A., Sato T., Yamada M., Yamamoto Y., Fukuhara T., Ogohara K., Ando H., Sugiyama K., Kashimura H., Kouyama, T.
  • Journal Title: Earth, Planets and Space Volume: 70 Issue: 1
  • DOI: 10.1186/s40623-017-0773-5
  • NAID: 120006486824
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Ecliptic North-South Symmetry of Hydrogen Geocorona (2017)
  • Author(s): Kameda S.、Ikezawa S.、Sato M.、Kuwabara M.、Osada N.、Murakami G.、Yoshioka K.、Yoshikawa I.、Taguchi M.、Funase R.、Sugita S.、Miyoshi Y.、Fujimoto M.
  • Journal Title: Geophysical Research Letters Volume: 44 Issue: 23
  • DOI: 10.1002/2017gl075915
  • Peer Reviewed / Open Access
• [Journal Article] Overview of Akatsuki data products: definition of data levels, method and accuracy of geometric correction (2017)
  • Author(s): Ogohara, K., M. Takagi, et al.
  • Journal Title: Earth, Planets and Space Volume: 69 Issue: 1 Pages: 1-16
  • DOI: 10.1186/s40623-017-0749-5
  • NAID: 120006486825
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Experimental characterization of elastomeric O-rings as reusable seals for mass spectrometric measurements: Application to in situ K?Ar dating on Mars (2017)
  • Author(s): Cho Yuichiro、Kameda Shingo、Okuno Mamoru、Horiuchi Misa、Shibasaki Kazuo、Wagatsuma Ryo、Aida Yusuke、Miura Yayoi N.、Yoshioka Kazuo、Okazaki Ryuji、Sugita Seiji
  • Journal Title: Advances in Space Research Volume: 60 Issue: 7 Pages: 1453-1462
  • DOI: 10.1016/j.asr.2017.07.002
  • Peer Reviewed
• [Journal Article] Imaging observations of the hydrogen coma of comet 67P/Churyumov-Gerasimenko in September 2015 by the PROCYON/LAICA (2017)
  • Author(s): Shinnaka, Y., N. Fougere, H. Kawakita, S. Kameda, M. R. Combi, S. Ikezawa, A. Seki, M. Kuwabara, M. Sato, M. Taguchi, I. Yoshikawa
  • Journal Title: Astronomical Journal Volume: 153 Issue: 2 Pages: 76-81
  • DOI: 10.3847/1538-3881/153/2/76
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Preflight calibration test results for optical navigation camera telescope (ONC-T) onboard the Hayabusa2 spacecraft (2016)
  • Author(s): Kameda, S., H. Suzuki, T. Takamatsu, Y. Cho, T. Yasuda, M. Yamada, H. Sawada, R. Honda, T. Morota, C. Honda, M. Sato, K. Shibasaki, S. Ikezawa, S. Sugita
  • Journal Title: Space Sci. Rev., Volume: - Issue: 1-4 Pages: 17-31
  • DOI: 10.1007/s11214-015-0227-y
  • Peer Reviewed
• [Journal Article] Ultraviolet detector with CMOS-coupled microchannel plates for future space missions (2016)
  • Author(s): Murakami, G., M. Kuwabara, K. Yoshioka, R. Hikida, F. Suzuki, and I. Yoshikawa
  • Journal Title: Proceedings of SPIE Volume: 9905 Pages: 1-6
  • DOI: 10.1117/12.2232183
• [Presentation] Hydrogen Geocorona Observed by PROCYON/LAICA (2018)
  • Author(s): S. Kameda et al.
  • Organizer: AOGS2018
  • Int'l Joint Research / Invited
• [Presentation] FAR-EXTENDED HYDROGEN EXOSPHERE OBSERVED BY PROCYON/LAICA (2018)
  • Author(s): S. Kameda et al.
  • Organizer: COSPAR2018
  • Int'l Joint Research
• [Presentation] VUV Spectroscopy for terrestrial exoplanetary exosphere (2018)
  • Author(s): S. Kameda, G. Murakami, et al.
  • Organizer: EPSC2018
  • Int'l Joint Research
• [Presentation] UVSPEX onboard WSO-UV (2018)
  • Author(s): S. Kameda, G. Murakami, et al.
  • Organizer: The Ninth Moscow Solar System Symposium
  • Int'l Joint Research
• [Presentation] 紫外線による系外惑星大気のトランジット観測計画 (2018)
  • Author(s): 村上豪, 亀田真吾, 生駒大洋, 成田憲保, 塩谷圭吾, 寺田直樹, 小玉貴則
  • Organizer: 第19回惑星圏研究会
  • Invited
• [Presentation] 宇宙望遠鏡搭載用高効率紫外線分光器の開発 (2017)
  • Author(s): 亀田真吾,村上豪, 塩谷圭吾, 小玉貴則, 成田憲保, 生駒大洋, 寺田直樹, 吉川一朗
  • Organizer: 惑星科学会秋季講演会
• [Presentation] Ultraviolet Spectrograph for Exoplanet Transit Investigations (UVSETI) onboard World Space Observatory; Ultraviolet (WSO-UV) (2017)
  • Author(s): Murakami, G., S. Kameda, K. Enya, M. Ikoma, N. Narita, I. Yoshikawa, and S. Sugita
  • Organizer: Japan Geoscience Union Meeting 2017
  • Int'l Joint Research
• [Presentation] Newly developed ultraviolet detector for future space missions (2016)
  • Author(s): Murakami, G., M. Kuwabara, K. Yoshioka, R. Hikida, F. Suzuki, and I. Yoshikawa
  • Organizer: The AOGS 2016 13th Annual Meeting
  • Place of Presentation: 北京, 中国
  • Int'l Joint Research
• [Presentation] Ultraviolet detector with CMOS-coupled microchannel plates for future space missions (2016)
  • Author(s): Murakami, G., M. Kuwabara, K. Yoshioka, R. Hikida, F. Suzuki, and I. Yoshikawa
  • Organizer: SPIE Astronomical Telescopes + Instrumentation 2016
  • Place of Presentation: Edinburgh, United Kingdom
  • Int'l Joint Research
• [Presentation] Feasibility studies for the detection of atomic oxygen exospheres of terrestrial planets in the habitable zone of a low-temperature star with a UV space telescope (2016)
  • Author(s): Horikoshi, H., Kameda, S., and Murakami, G.
  • Organizer: AGU Fall meeting 2016
  • Place of Presentation: San Francisco, アメリカ
  • Int'l Joint Research
• [Presentation] 次期惑星探査に 向けた新型紫外線検出器の開発 (2016)
  • Author(s): 村上豪, 桑原正輝, 吉岡和夫, 疋田伶奈, 鈴木文晴, 吉川一朗
  • Organizer: 日本地球惑星科学連合2016年大会
  • Place of Presentation: 幕張メッセ（千葉県千葉市）
• [Presentation] 紫外線望遠鏡による系外惑星酸素大気検出の検討 (2016)
  • Author(s): 堀越 寛己; 亀田 真吾; 村上 豪
  • Organizer: 地球電磁気・地球惑星圏学会
  • Place of Presentation: 九州大学（福岡県福岡市）
• [Presentation] 紫外線望遠鏡による低温度星周りの系外惑星酸素大気検出の検討 (2016)
  • Author(s): 堀越 寛己; 亀田 真吾; 村上 豪
  • Organizer: 日本惑星科学会2016年秋季講演会
  • Place of Presentation: ノートルダム清心女子大学（岡山県岡山市）
• [Remarks] LAICA data
  • URL: http://www2.rikkyo.ac.jp/web/kameda/LAICA/