Investigations of physical parameters and surface properties of young asteroid families

• Project/Area Number: 18540427
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Solid earth and planetary physics
• Research Institution: National Astronomical Observatory of Japan
• Principal Investigator: YOSHIDA Fumi National Astronomical Observatory of Japan, 国際連携室, 専門研究職員 (20399306)
• Project Period (FY): 2006 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥3,810,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥510,000); Fiscal Year 2008: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2007: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2006: ¥1,600,000 (Direct Cost: ¥1,600,000)
• Keywords: 月 / 衛星 / 小惑星 / 自転 / 宇宙風化 / 自転周期 / サイズ分布 / 衝突現象

Research Abstract

天体の衝突破壊現象の素過程を現在まで良く保存していると思われる形成年代の新しい3つの小惑星族の小惑星を約50個観測し、自転周期分布、形状分布、自転周期と形状の関係を明らかにした。また、形成年代の新しい小惑星族の小惑星と古い小惑星族の小惑星の表面カラーの比較から、小惑星の表面年齢とカラー変化の関係を確認できた。

Research Products

• [Journal Article] Photometric Observations of Young Asteroid Families at Maidanak Observatory (2009)
  • Author(s): Fumi Yoshida, et al.
  • Journal Title: Advances in Geosciences (World Scientific) (印刷中)
  • Peer Reviewed
• [Journal Article] Photometric Observations of Young Asteroid Families at Maidanak Observatory (in press 2009年9月発行) (2009)
  • Author(s): Fumi Yoshida, 他
  • Journal Title: Advances in Geosciences (印刷中)
  • Peer Reviewed
• [Journal Article] A comparative study of size distributions for small L4 and L5 Jovian Trojans (2008)
  • Author(s): F. Yoshida and T. Nakamura
  • Journal Title: Publ. Astron. Soc. Japan 60 Pages: 297-301
  • NAID: 10023952248
  • Peer Reviewed
• [Journal Article] A new surface density model of Jovian Trojans around triangular libration points (2008)
  • Author(s): T. Nakamura and F. Yoshida
  • Journal Title: Publ. Astron. Soc. Japan 60 Pages: 293-296
  • NAID: 10023952235
  • Peer Reviewed
• [Journal Article] Searching satellites of asteroid Itokawa by imaging observation with Hayabusa spacecraft (2008)
  • Author(s): T. Fuse, F. Yoshida, D. Tholen, M. Ishiguro, J. Saito
  • Journal Title: Earth, Planet, Space 60 Pages: 33-37
  • NAID: 10029006664
  • Peer Reviewed
• [Journal Article] Photometric Observations of Young Asteroid Families at Maidanak Observatory (2008)
  • Author(s): Fumi Yoshida, 他
  • Journal Title: Advances in Geosciences (印刷中)
  • Peer Reviewed
• [Journal Article] Subaru main belt asteroid survey (SMBAS) (2007)
  • Author(s): F. Yoshida and T. Nakamura
  • Journal Title: Planet. Space Sci. 55 Pages: 1113-1125
  • Peer Reviewed
• [Journal Article] Color Variation of a Very Young Asteroid, Karin (2007)
  • Author(s): T. Ito and F. Yoshida
  • Journal Title: Publ. Astron. Soc. Japan 59 Pages: 269-275
  • NAID: 10023944710
  • Peer Reviewed
• [Journal Article] Global mapping of the degree of space weathering on asteroid 25143 Itokawa by Hayabusa/AMICA observations (2007)
  • Author(s): M. Ishiguro, F. Yoshida (10番目) ら著者全19名
  • Journal Title: Meteoritics & Planetary Science vol. 42, Issue 10 Pages: 1791-1800
  • Peer Reviewed
• [Journal Article] Lightcurves of sub-km main belt asteroids (2007)
  • Author(s): F. Yoshida, M. Yagi, T. Ito, T. Nakamura, B. Dermawan, T. Yanahisawa, H. Kurosaki, A. Nakajima
  • Journal Title: Proceedings of the N-body Dynamics SymposiProceedings of the N-body Dynamics Symposium March 7-9, 2007 at Kisarazu National College of Technology Kisarazu, Chiba, Japan Pages: 245-245
• [Journal Article] Surface Color Variation of a New-Born Family Asteroid. Karin (2007)
  • Author(s): T. Ito and F. Yoshida
  • Journal Title: Proceedings of the N-body Dynamics Symposium March 7-9, 2007 at Kisarazu National College of Technology Kisarazu, Chiba, Japan Pages: 232-244
• [Journal Article] 由小天體的大小分〓 探討 太陽系撞撃史 -38億年前在月球上鑿孔的天體之真面目 (2007)
  • Author(s): 吉田二美
  • Journal Title: 台北市立天文教育科学館季刊誌「台北星空」 Vol.35 Pages: 7-11
• [Journal Article] Color Variation of a Very Young Asteroid, Karin (2007)
  • Author(s): Takashi Ito, Fumi Yoshida
  • Journal Title: Publ. Astron. Soc. Jpn. 56 Pages: 269-269
  • NAID: 10023944710
• [Journal Article] Surface Color Variation of a New-Born Family Asteroid. Karin (2007)
  • Author(s): Takashi Ito, Fumi Yoshida
  • Journal Title: Proceedings of the N-body Dynamics Symposium Pages: 232-232
• [Journal Article] Lightcurves of the Karin family asteroids (2006)
  • Author(s): T. Ito and F. Yoshida
  • Journal Title: Advances in Geosciences (World Scientific) vol. 3 Planetary Science Pages: 317-329
  • Peer Reviewed
• [Journal Article] Size distribution of asteroids and old terrestrial craters (2006)
  • Author(s): T. Ito, R. G. Strom, R. Malhotra, F. Yoshida, D. A. Kring
  • Journal Title: Advances in Geosciences (World Scientific) vol. 3 Planetary Science Pages: 337-343
  • Peer Reviewed
• [Journal Article] A new-born asteroid 832 Karin with old and new surfaces - SUBARU Spectroscopy (2006)
  • Author(s): S. Sasaki, T. Sasaki, J. Watanabe, F. Yoshida, H. Kawakita, N. Takato, B. Dermawan, T. Fuse, T. Ito, and T. Sekiguchi
  • Journal Title: Adv. Space. Res. 38, issue 9 Pages: 1995-1999
  • Peer Reviewed
• [Journal Article] Difference in degree of space weathering on newborn asteroid Karin (2006)
  • Author(s): T. Sasaki, S. Sasaki, J. Watanabe, T. Sekiguchi, F. Yoshida, T. Ito, H. Kawakita, T. Fuse, N. Takato, and B. Dermawan
  • Journal Title: Advances in Geosciences (Anil Bhardwaj and Wing-Huen Ip, eds.) (World Scientific) vol. 3 Planetary Science Pages: 331-336
  • Peer Reviewed
• [Journal Article] Detailed images of asteroids 25143 Itokawa from Hayabusa (2006)
  • Author(s): J. Saito, F. Yoshida (14番目) ら著者全34名
  • Journal Title: Science 312 Pages: 1341-1344
  • Peer Reviewed
• [Journal Article] A mission called SAPPORO (2006)
  • Author(s): W.-H. Ip, F. Yoshida (7番目) ら著者全18名
  • Journal Title: Advances in Geosciences (World Scientific) vol. 3 Planetary Science Pages: 241-253
  • Peer Reviewed
• [Journal Article] 「隼鷹號」探検船飛降「糸川」小行星 (2006)
  • Author(s): 吉田二美
  • Journal Title: 台北市立天文教育科学館季刊誌「台北星空」 Vol.34
• [Journal Article] 木星トロヤ群小惑星のサイズ分布から探る初期太陽系の描像 (2006)
  • Author(s): 吉田二美
  • Journal Title: Japan Spaceguard Association Journal ASTEROID 15, No.2 Pages: 33-37
• [Journal Article] 若い小惑星族の光度曲線 (2006)
  • Author(s): 伊藤孝士・吉田二美
  • Journal Title: Japan Spaceguard Association Journal ASTEROID 15, No.2 Pages: 30-32
  • NAID: 110003377887
• [Journal Article] 小天体のサイズ分布から探る太陽系衝突史 (2006)
  • Author(s): 吉田二美
  • Journal Title: 天文月報 Vol.99 No.6 Pages: 298-310
• [Journal Article] Lightcurves of the Karin Family Asteroids (2006)
  • Author(s): Takashi Ito, Fumi Yoshida
  • Journal Title: in Advances in Geosciences, vol. 3 Planetary Science Pages: 317-317
• [Journal Article] Difference in degree of space weathering on newborn asteroid Karin (2006)
  • Author(s): Takanori Sasaki, 他
  • Journal Title: in Advances in Geosciences, vol. 3 Planetary Science Pages: 331-331
• [Journal Article] A new born asteroid 832 Karin with old and new surface - SUBARU spectroscopy (2006)
  • Author(s): Sho Sasaki, 他
  • Journal Title: Advances in Space Research 38 Pages: 1995-1995
• [Presentation] Photometric Observations of Young Asteroid Families at Maidanak Observatory (2009)
  • Author(s): F. Yoshida
  • Organizer: UBAI seminar
  • Place of Presentation: Ulugh Beg Astronomical Institute
  • Year and Date: 2009-02-19
• [Presentation] Photometric Observations of Young Asteroid Families at Maidanak Observatory (2009)
  • Author(s): Fumi Yoshida
  • Organizer: UBAI seminar
  • Place of Presentation: Ulugh Beg Astronomical Institute, Uzbekistan
  • Year and Date: 2009-02-19
• [Presentation] Toward the construction of an Extended Asian network for the Solar system body observation (2009)
  • Author(s): F. Yoshida
  • Organizer: East-Asian Core Observatory Association EACOA 2009 Meeting
  • Place of Presentation: Academia Sinica Institute of Astronomy and Astrophysics, Taiwan
• [Presentation] Asteroid observations at the Maidanak observatory (2009)
  • Author(s): F. Yoshida
  • Organizer: Infrared Working Group Winter Workshop and 30th Meeting
  • Place of Presentation: Yongpyong, Korea
• [Presentation] Solar system (2009)
  • Author(s): F. Yoshida
  • Organizer: Japan-Princeton-Taiwan HSC Workshop
  • Place of Presentation: NAOJ , Mitaka, Tokyo
• [Presentation] An Insight into the Solar System History through the Size Distribution of Jupiter's Trojans (2009)
  • Author(s): 吉田二美
  • Organizer: 第41回天体力学N体力学研究会
  • Place of Presentation: 国立天文台三鷹
• [Presentation] ウズベキスタンのMaidanak天文台での小惑星観測プロジェクト (2009)
  • Author(s): 吉田二美
  • Organizer: 第5回始原天体研究会
  • Place of Presentation: 国立天文台三鷹
• [Presentation] An Insight into the Solar System History through the Size Distribution of Jupiter's Trojans (2009)
  • Author(s): 吉田二美
  • Organizer: 2008年度すばるユーザーズミーティング
  • Place of Presentation: 国立天文台三鷹
• [Presentation] Bombardment History of the Inner Solar System (2009)
  • Author(s): R. Malhotra, R. G. Strom, T. Ito, F. Yoshida, D. A. Kring
  • Organizer: American Astronomical Society, DPS meeting #38, #67.01; Bulletin of the American Astronomical Society, Vol. 38, p.618
• [Presentation] ウズベキスタンのMaidanak天文台での小惑星観測プロジェクト (2009)
  • Author(s): 吉田二美
  • Organizer: 第5回始原天体研究会
  • Place of Presentation: 国立天文台
• [Presentation] HSC survey for Small Solar system Bodies (2008)
  • Author(s): F. Yoshida
  • Organizer: Taiwan-Japan Subaru-HSC Science/Survey Mini Workshop
  • Place of Presentation: Institute of Astronomy and Astrophysics, Academia Sinica, Taiwan
  • Year and Date: 2008-12-22
• [Presentation] 木星トロヤ群の光学観測 (2008)
  • Author(s): 吉田二美
  • Organizer: 木星圏・トロヤ群探査研究会
  • Place of Presentation: 東京工業大学
  • Year and Date: 2008-12-08
• [Presentation] An Insight into the Solar System History through the Size Distribution of Jupiter Trojans (2008)
  • Author(s): F. Yoshida
  • Organizer: NCU seminar
  • Place of Presentation: National Central University, Taiwan
  • Year and Date: 2008-05-27
• [Presentation] An insight into the solar system history through the size distribution of Jupiter's Trojans (2008)
  • Author(s): F. Yoshida
  • Organizer: Asteroids, Meteors, and Comets
  • Place of Presentation: Baltimore Marriott Waterfront, Baltimore, Maryland, USA
• [Presentation] Size distributions and total populations of L4 and L5 Jovian trojans (2008)
  • Author(s): F. Yoshida
  • Organizer: Asia-Oceania Geoscience Society 5th Annual Meeting
  • Place of Presentation: Bexico, Busan, Korea
• [Presentation] 木星トロヤ群小惑星のサイズ分布から探る太陽系史 (2008)
  • Author(s): 吉田二美, 中村士
  • Organizer: 日本惑星科学会2008年秋季講演会
  • Place of Presentation: 九州大学箱崎キャンパス
• [Presentation] 木星トロヤ群小惑星のサイズ分布から探る太陽系史 (2008)
  • Author(s): 吉田二美, 中村士
  • Organizer: 日本天文学会2008年秋季年会
  • Place of Presentation: 岡山理科大学
• [Presentation] Survery of celestial objects in Solar System by Suprime-Cam (2008)
  • Author(s): F. Yoshida
  • Organizer: Subaru Users' Meeting ~ New Strategy of Subaru (II) ~
  • Place of Presentation: NAOJ
• [Presentation] Photometric observations of young asteroid families at Maidanak observatory in Uzbekistan (2007)
  • Author(s): F. Yoshida
  • Organizer: 7th East Asian Meeting on Astronomy - East Asian Network of Astronomy : Research, education and popularization
  • Place of Presentation: Fukuoka, Japan
• [Presentation] Observations of Young Asteroid Families at Maidanak Observatory (2007)
  • Author(s): F. Yoshida
  • Organizer: Asia Oceania Geosciences Society 4th annual meeting
  • Place of Presentation: Bangkok
• [Presentation] Maidanak天文台における若い小惑星族小惑星の観測 (2007)
  • Author(s): 吉田二美, 伊藤孝士, 高橋茂, Ibrahimov, M. A., Marshalkina, A. L.
  • Organizer: 日本惑星科学会2007年秋季講演会
  • Place of Presentation: 高知大学朝倉キャンパス
• [Presentation] Maidanak天文台における若い小惑星族の多色測光観測 (2007)
  • Author(s): 吉田二美, 伊藤孝士, 高橋茂, Ibrahimov, M. A., Marshalkina, A. L.
  • Organizer: 日本天文学会2007年春季年会
  • Place of Presentation: 東海大学湘南キャンパス
• [Presentation] Photometric Observations of Young Asteroid Families at Maidanak Observatory (2007)
  • Author(s): Fumi Yoshida
  • Organizer: Asia Oceania Geosciences Society 4th Annual Meeting (AOG52007)
  • Place of Presentation: Bangkok, Thailand
• [Presentation] A spectro-photometric study of Karin family asteroids. International Science Symposium on Sample Returns from Solar System Minor Bodies (2006)
  • Author(s): S. Takahashi, F. Yoshida, T. Ito, W. H. Ip, and W. P. Chen
  • Organizer: the 2nd Hayabusa Symposium - In-situ investigation of Itokawa, Sample Analyses Preparation and Spacecraft Operation -
  • Place of Presentation: Tokyo, Japan
• [Presentation] 木星のトロヤ群小惑星のサイズ分布 (2006)
  • Author(s): 吉田二美
  • Organizer: 地球惑星科学関連学会合同大会
  • Place of Presentation: 幕張メッセ
• [Presentation] 微小メインベルト小惑星の光度曲線観測 (2006)
  • Author(s): 吉田二美, 八木雅文、伊藤孝士、中村士、Budi Derwaman、柳沢俊史、黒崎裕久、中島厚
  • Organizer: 日本天文学会 2006年秋季年会
  • Place of Presentation: 九州国際大学
• [Presentation] 微小メインベルト小惑星の光度曲線観測 (2006)
  • Author(s): 吉田二美, 八木雅文、伊藤孝士、中村士、Budi Derwaman、柳沢俊史、黒崎裕久、中島厚
  • Organizer: 2006年日本惑星科学会秋季講演
  • Place of Presentation: 兵庫県立美術館, ひょうご国際プラザ
• [Presentation] 若い小惑星(832)Karinの近赤外多色測光観測 (2006)
  • Author(s): 伊藤孝士、吉田二美
  • Organizer: 2006年日本惑星科学会秋季講演
  • Place of Presentation: 兵庫県立美術館, ひょうご国際プラザ
• [Presentation] Observations of 25143 Itokawa by the Asteroid Multiband Imaging Camera (AMICA) of Hayabusa: Morphology of Brighter and Darker Areas. Sasaki, S. (2006)
  • Author(s): J. Saito, F. Yoshida (27番目) ら著者全27名
  • Organizer: 37th Annual Lunar and Planetary Science Conference
  • Place of Presentation: League City, Texas
• [Presentation] Detection of a Large Variation in the Degree of Space Weathering on the Surface of Itokawa by Hayabusa/AMICA Observations (2006)
  • Author(s): M. Ishiguro, F. Yoshida (6番目) ら著者全9名
  • Organizer: 37th Annual Lunar and Planetary Science Conference
  • Place of Presentation: League City, Texas