High-speed and wide-field survey for trans-Neptunian objects
| Project/Area Number |
18H01272
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Review Section |
Basic Section 17010:Space and planetary sciences-related
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| Research Institution | National Astronomical Observatory of Japan |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
酒向 重行 東京大学, 大学院理学系研究科(理学部), 准教授 (90533563)
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| Project Period (FY) |
2018-04-01 – 2021-03-31
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| Project Status |
Completed (Fiscal Year 2020)
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| Budget Amount *help |
¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Fiscal Year 2020: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2019: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2018: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
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| Keywords | 固体惑星 / 惑星形成 / 衛星 / 惑星進化 / 小惑星 |
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| Outline of Final Research Achievements |
The goal of this study is to derive a size-frequency distribution of kilo-meter size trans-Neptunian objects (TNOs) and reveal the outer environment in the early solar system and migration process of ice giant planets by observing stellar occultations due to the TNOs. To accomplish this purpose, we have completed a wide-field video camera for the Kiso 105-cm Schmidt telescope and conducted a wide-field video survey of the sky at 2 Hz for a long period. While we could not detect stellar occultations due to the TNOs in the period of this study, we have successfully developed an observation system for the occultations.
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| Academic Significance and Societal Importance of the Research Achievements |
本研究で開発した木曽105cmシュミット望遠鏡用の広視野動画カメラTomo-e Gozenは、秒以下の現象を探索できる世界で唯一の広視野装置である。太陽系外縁天体の観測の重要性は近年高まってきているが、その掩蔽現象を検出する能力のある観測装置とソフトウェアシステムを構築し、長時間サーベイ観測により取得した実データを用いて掩蔽の検出技術を獲得した本研究の学術的意義は大きい。
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Report
(4 results)
Research Products
(29 results)
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[Journal Article] Relationship between radar cross section and optical magnitude based on radar and optical simultaneous observations of faint meteors2020
Author(s)
R. Ohsawa, A. Hirota, K. Morita, S. Abe, D. Kastinen, J. Kero, C. Szasz, Y. Fujiwara, T. Nakamura, K. Nishimura, S. Sako, J. Watanabe, et al.
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Journal Title
Planetary and Space Science
Volume: 194
Pages: 105011-105011
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] New Constraint on the Atmosphere of (50000) Quaoar from a Stellar Occultation2019
Author(s)
Ko Arimatsu, Ryou Ohsawa, George L. Hashimoto, Seitaro Urakawa, Jun Takahashi, Miyako Tozuka, Yoichi Itoh, Misato Yamashita, et al.
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Journal Title
The Astronomical Journal, Volume 158, Issue 6, article id. 236, 7 pp. (2019).
Volume: 158
Pages: 236-236
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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