講演情報
[PCG10-20]Origin and evolution of Phobos: Scientific objectives awaiting particle measurements by MMX
*寺田 直樹1、関 華奈子2、二穴 喜文3、Leblanc Francois4、横田 勝一郎5、斎藤 義文5、松岡 彩子5、野村 麗子5、山崎 敦5、栗原 純一6、三浦 弥生7、馬上 謙一6、岡崎 隆司8、中村 智樹1、亀田 真吾9、長 勇一郎9、火星衛星探査計画 科学検討チーム (1.東北大学大学院理学研究科、2.東京大学大学院理学系研究科、3.スウェーデン国立スペース物理研究所、4.フランス大気環境宇宙観測研究所、5.宇宙航空開発研究機構・宇宙科学研究所、6.北海道大学大学院理学研究院、7.東京大学地震研究所、8.九州大学大学院理学研究院、9.立教大学理学部)
キーワード：
Phobos、Mars、Particle
In this presentation, we will present scientific objectives of particle measurements by the Mars Moon eXploration (MMX) mission. The MINE (Magnetic field, Ion and Neutral Experiment) package consisting of five instruments (MSA, MIA, REN, NIMES, and MGF) and MEC (Mars Escaping atmosphere Capturing device) have been proposed as possible payloads of the MMX mission. MINE and MEC would perform particle measurements corresponding to the following three scientific objectives: (1) To obtain indirect information on the Phobos internal structure in order to constrain the origin of Phobos independent of the sample analysis results. (2) To characterize the space environment and the surface features of Phobos, with the intention of comparison with asteroids. (3) To constrain the total amount of atmosphere lost from Mars to space during its history. Details of these three scientific objectives will be presented.