University of Tokyo
Japan Aerospace Exploration Agency (JAXA)
JAXA Space Exploration Center, Japan Aerospace Exploration Agency (JAXA)(JSPEC)
出版者
宇宙航空研究開発機構宇宙科学研究本部
出版者（英）
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)
雑誌名
アストロダイナミクスシンポジウム講演後刷り集
雑誌名(英)
Proceedings of 18th workshop on JAXA Astrodynamics and flight mechanics
巻
2008
発行年
2009-03
会議概要（会議名, 開催地, 会期, 主催者等）（英）
Symposium on Flight Mechanics and Astrodynamics 2008 (July 28-29, 2008. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)), Sagamihara, Kanagawa Japan
Dust particles exist around the Earth's orbit per tens of meters square and are replenished from asteroids and comets. Principal force on these particles except for gravitational forces from the Sun and planets is solar radiation pressure which involves drag force known as P-R drag. Its force reduces dust's mechanical energy and a dust ends up spiralling in towards the Sun. This behavior of the dust provides the possibility that a dust passing near the Earth can be trapped in a horseshoe orbit by the gravity of the Earth. In this paper, we assume that a dust is trapped in the orbit and calculate distributions of dust's number density and velocity on the orbit. Furthermore, we analyze the possibility that a dust is trapped or not.
内容記述
形態: カラー図版あり
内容記述（英）
Physical characteristics: Original contains color illustrations
馬蹄形軌道に捕獲されたダストの密度分布に関する研究
