Observational Study of various extrasolar planets

• Project/Area Number: 18740279
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Solid earth and planetary physics
• Research Institution: Kobe University
• Principal Investigator: OASA Yumiko Kobe University, 大学院理学研究科, COE上級研究員 (10397820)
• Project Period (FY): 2006 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥3,600,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥300,000); Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2007: ¥1,000,000 (Direct Cost: ¥1,000,000); Fiscal Year 2006: ¥1,300,000 (Direct Cost: ¥1,300,000)
• Keywords: 惑星形成 / 進化 / 系外惑星 / 惑星質量天体 / 褐色矮星 / 光学赤外線天文学 / 星惑星形成 / 原始惑星系円盤 / 地球型惑星大気 / 赤外線観測

Research Abstract

系外惑星系の普遍性や多様性、第二の地球は存在するかという疑問に答える事を目指し、1) 系外惑星の直接検出, 惑星質量天体の観測的解明を目的として、すばる望遠鏡などの大型望遠鏡を用いた、若い前主系列星や太陽近傍の恒星の周囲に存在する原始惑星や原始惑星系円盤の探査観測、及び恒星の伴星でなく単独で存在する惑星質量天体や褐色矮星など超低質量天体の詳細観測2) 地球型生命を持つ系外地球型惑星検出計画にむけた数値計算法による基礎研究を進めた。

Research Products

• [Journal Article] Radial Velocity Search for Extrasolar Planets in Visual Binary Systems (2009)
  • Author(s): Toyota, E., et.al.
  • Journal Title: Publications of the Astronomical Society of Japan 61 Pages: 19-28
  • Peer Reviewed
• [Journal Article] H band Image of a Planetary Companion around. HR 8799 in 2002 (2009)
  • Author(s): Fukagawa, M., et.al.
  • Journal Title: The Astrophysical Journal Letter (印刷中)
  • Peer Reviewed
• [Journal Article] Millimeter-wave survey of molecular clouds around the W5-East treiggered star-forming region (2009)
  • Author(s): Niwa, T., et.al.
  • Journal Title: Astronomy & Astrophysics (印刷中)
  • Peer Reviewed
• [Journal Article] Luminosity and Mass Functions at the Very Low-Mass Side in NGC 1333 (2008)
  • Author(s): Oasa, Y., Tamura, M., Sunada, K., Sugitani,K
  • Journal Title: The Astronomical Journal Vol. 136 Pages: 1372-1387
  • Peer Reviewed
• [Journal Article] Luminosity and Mass Functions at the Very Low Mass Side in NGC 1333 (2008)
  • Author(s): Oasa, Y., et.al.
  • Journal Title: The Astronomical Journal 136 Pages: 1372-1387
  • Peer Reviewed
• [Journal Article] Near-Infrared Spectroscopy of Faint Companions around Young Stellar Objects associated with the Taurus Molecular Cloud (2008)
  • Author(s): Itoh, Y., et.al.
  • Journal Title: Publications of the Astronomical Society of Japan 60 Pages: 209-218
  • Peer Reviewed
• [Journal Article] Near-Infrared Coronagraphic Observations of a Classical T Tauri Star DO Tau (2008)
  • Author(s): Itoh, Y., et.al.
  • Journal Title: Publications of the Astronomical Society of Japan 60 Pages: 223-226
  • Peer Reviewed
• [Journal Article] Near-Infrared spectroscopy of Faint Companions around Young Stellar Objects associated with the Taurus Molecular Cloud (2008)
  • Author(s): Itoh, Y, et al.
  • Journal Title: Publications of the Astronomical Society of Japan (印刷中)
  • Peer Reviewed
• [Journal Article] Near-Infrared Coronagraphic Observations of a Classical T Tauri Star DO Tau (2008)
  • Author(s): Itoh, Y., et al.
  • Journal Title: Publications of the Astronomical Society of Japan (印刷中)
  • Peer Reviewed
• [Journal Article] Discovery of a Scattering Disk around the Low-Mass T Tauri Star FN Tauri (2008)
  • Author(s): Kudo, T., et al.
  • Journal Title: The Astrophysical Journal 673 Pages: 67-70
  • Peer Reviewed
• [Journal Article] Radial Velocity Search for Extrasolar Planets in Binary Systems (2008)
  • Author(s): Toyota, E., et al.
  • Journal Title: Proceedings of the ESO/Lisbon/Aveiro Conference, "Precision Spectroscopy in Astrophysics" Pages: 321-322
• [Journal Article] Metallicity of Pleiades Dwarf (2008)
  • Author(s): Funayama, H., et al.
  • Journal Title: Proceedings of the ESO/Lisbon/Aveiro Conference, "Precision Spectroscopy in Astrophysics" Pages: 285-286
• [Journal Article] Photometric and Spectroscopic Studies of Very Low Mass YSOs and Young Brown Dwarfs in S106 (2007)
  • Author(s): Oasa, Y
  • Journal Title: Proc. Of International Astronomical Union Symposium edited by the IAU vol 237 Pages: 457-457
  • Peer Reviewed
• [Journal Article] 天体観測で探る太陽系外惑星と星惑星形成領域 (2007)
  • Author(s): Itoh, Y., Oasa, Y., Tachihara, K.
  • Journal Title: 遊星人 16 Pages: 330-338
  • NAID: 110006570492
  • Peer Reviewed
• [Journal Article] Subaru Near-Infrared Multicolor Images of Class II Young Stellar Object, RNO91 (2007)
  • Author(s): Mayama, S., et al.
  • Journal Title: Publications of the Astronomical Society of Japan 59 Pages: 1153-1160
  • Peer Reviewed
• [Journal Article] Near-Infrared Coronagraphic Observations of the T Tauri Binary System UY Aur (2007)
  • Author(s): Hioki, T., et al.
  • Journal Title: The Astronomical Journal 134 Pages: 880-885
  • Peer Reviewed
• [Journal Article] Near-Infrared Extinction in the Coalsack Globule 2 (2007)
  • Author(s): Naoi, T., et al.
  • Journal Title: The Astrophysical Journal 658 Pages: 1114-1118
  • Peer Reviewed
• [Journal Article] Photometric and spectroscopic studies of very low mass YSOs and young brown dwarfs in S106 (2007)
  • Author(s): Oasa, Y.
  • Journal Title: Proceedings of the IAU Symposium #237, "Triggered Star Formation in a Turbulent ISM" Pages: 457-457
• [Journal Article] Radio observation of molecular clouds around the W5-East triggered star-forming region (2007)
  • Author(s): Niwa, T., et al.
  • Journal Title: Proceedings of the IAU Symposium #237, "Triggered Star Formation in a Turbulent ISM" Pages: 454-454
• [Journal Article] The Search for Extrasolar Earth-like Planets : Spectral Signature of Atmospheric Evolution (2007)
  • Author(s): Oasa, Y. et al.
  • Journal Title: Viva Origino (印刷中)
  • NAID: 110006162904
• [Journal Article] Near-Infrared Extinction in the Coalsack Globule 2 (2007)
  • Author(s): Naoi et al.
  • Journal Title: The Astrophysical Journal (印刷中)
• [Journal Article] Very Low Luminosity Young Cluster and the Luminosity and Mass Functions in S 106 (2006)
  • Author(s): Oasa, Y., Tamura, M., Nakajima, Y., Itoh, Y., Maihara, T., Iwamuro, F., Motohara, K., Hayashi, S., Hayashi, M., Kaifu, N
  • Journal Title: The Astronomical Journal Vol. 131 Pages: 1068-1088
  • Peer Reviewed
• [Journal Article] The Search for Extrasolar Earth-like Planets: Spectral Signature of Atmospheric Evolution (2006)
  • Author(s): Oasa, Y., Kikuchi, N
  • Journal Title: Viva Origino Vol. 34 Pages: 130-132
  • NAID: 110006162904
  • Peer Reviewed
• [Journal Article] Coronagraphic Search for Extrasolar Planets around epsilon Eri and Vega (2006)
  • Author(s): Itoh, Y. et al.
  • Journal Title: The Astrophysical Journal 652 Pages: 1729-1733
• [Journal Article] Sequential formation of low-mass stars in the BRC 14 region (2006)
  • Author(s): Matsuyanagi, I. et al.
  • Journal Title: Publication of the Astronomical Society of Japan 58
• [Journal Article] Subaru Near Infrared Coronagraphic Images of T Tauri (2006)
  • Author(s): Mayama, S. et al.
  • Journal Title: Publication of the Astronomical Society of Japan 58 Pages: 375-382
• [Presentation] Mass Functions at the Very Low Mass Side in NGC1333 (2008)
  • Author(s): Oasa, Y.
  • Organizer: The 3rd Japan-Taiwan ALMA Science Workshop
  • Place of Presentation: 台湾・国立彰化師範大学
  • Year and Date: 2008-01-19
• [Presentation] Age determination of T Tauri stars by high-resolution nearinfrared Spectroscopy (2008)
  • Author(s): Takagi, Y., Itoh, Y., Oasa, Y
  • Organizer: International Astronomical Union Symposium No.258
  • Place of Presentation: The Age of Stars
• [Presentation] A multi-wavelength study of very low-mass objects (2008)
  • Author(s): Oasa, Y
  • Organizer: The 5th Japan-Taiwan ALMA Science Workshop
  • Place of Presentation: 台湾
• [Presentation] A multi-wavelength study of very low-mass objects in NGC1333 (2008)
  • Author(s): Oasa, Y.
  • Organizer: The 5^<th> Japan-Taiwan ALMA Science Workshop
  • Place of Presentation: 台湾・国立台湾精華大学
• [Presentation] Photometric and Spectroscopic Studies of Young Brown Dwarfs and Planetary Mass Objects in S106 (2007)
  • Author(s): Oasa, Y.
  • Organizer: The 3rd Japan-Taiwan ALMA Science Workshop
  • Place of Presentation: 台湾・国立台湾中央大学
  • Year and Date: 2007-04-13
• [Presentation] Photometric and Spectroscopic Studies of Young Brown Dwarfs and Planetary Mass Objects (2007)
  • Author(s): Oasa, Y
  • Organizer: The ESO workshop、Observing Planetary Systems
  • Place of Presentation: ドイツ
• [Presentation] Disk/PLANET Survey Team, "Near-Infrared Coronagraphic Observations of the T Tauri Binary System UY Aur (2007)
  • Author(s): Hioki, T., Itoh, Y., Oasa, Y., Fukagawa, M., Subaru
  • Organizer: The 3rd Japan-Taiwan ALMA Science Workshop
  • Place of Presentation: 台湾
• [Presentation] Photometric and Spectroscopic Studies of Young Brown Dwarfs and Planetary Mass Objects in S106 (2007)
  • Author(s): Oasa, Y
  • Organizer: The 3rd Japan-Taiwan ALMA Science Workshop
  • Place of Presentation: 台湾
• [Presentation] Disk/PLANET Survey Team, "Near-Infrared Coronagraphic Observations of the T Tauri Binary System UY Aur (2007)
  • Author(s): Hioki, T., Itoh, Y., Oasa, Y., Fukagawa, M., Subaru
  • Organizer: The Spirit of Bernard Lyot "The Direct Detection of Planets and Circumstellar Disks in the 21st Century
  • Place of Presentation: アメリカ
• [Presentation] Near-Infrared Images of the Disk around HD 142527 (2007)
  • Author(s): Fukagawa, M., Itoh, Y., Oasa, Y., Kudo, T., Fujiwara, H., Tamura, M., Hayashi, M., Hayashi, S
  • Organizer: The Spirit of Bernard Lyot "The Direct Detection of Planets and Circumstellar Disks in the 21st Century
  • Place of Presentation: アメリカ
• [Presentation] NGC1333に存在する超低質量天体 (2007)
  • Author(s): 大朝 由美子、田中 宗親、伊藤 洋一
  • Organizer: 日本天文学会秋季年会
  • Place of Presentation: 岐阜
• [Presentation] NGC1333に存在する超低質量天体 (2007)
  • Author(s): 大朝 由美子, 他
  • Organizer: 日本天文学会
  • Place of Presentation: 岐阜・岐阜大学
• [Presentation] Photometric and Spectroscopic Studies of Very Low Mass YSOs and Young Brown Dwarfs in S106 (2006)
  • Author(s): Oasa, Y
  • Organizer: International Astronomical Union Symposium、No.237
  • Place of Presentation: プラハ
• [Presentation] Radio observation of molecular clouds around the W5-East triggered star-forming region (2006)
  • Author(s): Niwa, T., Itoh, Y., Tachihara, K., Oasa, Y., Sunada, K., Sugitani, K
  • Organizer: International Astronomical Union Symposium No.237
  • Place of Presentation: プラハ
• [Presentation] Metallicity of Pleiades Dwarf (2006)
  • Author(s): Funayama, H., Itoh, Y., Oasa, Y., Toyota, E., Mukai, T
  • Organizer: Precision Spectroscopy in Astrophysics, the ESO/Lisbon/Aveiro Conference
  • Place of Presentation: ポルトガル
• [Presentation] Radial Velocity Search for Extrasolar Planets in Binary Systems (2006)
  • Author(s): Toyota, E., Itoh, Y., Ishiguma, S., Murata, D., Oasa, Y., Sato, B., Mukai, T
  • Organizer: Precision Spectroscopy in Astrophysics, the ESO/Lisbon/Aveiro Conference
  • Place of Presentation: ポルトガル
• [Presentation] GC1333における超低質量天体形成 (2006)
  • Author(s): 大朝 由美子、伊藤 洋一, 向井 正, 田村 元秀
  • Organizer: 日本天文学会秋季年会
  • Place of Presentation: 九州国際大学
• [Remarks] 14ばん目の月、誠文堂新光社発行月刊天文ガイド、2001年8月号から毎月連載 (現在も連載中)
• [Remarks] Lykawka, S. P., Oasa, Y., 「太陽系に新惑星を予測」誠文堂新光社発行月刊天文ガイド 2008年5月号(vol 531), pp.18-21
• [Remarks] プラネタリウム番組「はるかなる第二の地球」製作協力、出演、監修 2006年9月から2007年3月まで上映