Japan Aerospace Exploration Agency Institute of Space and Astronautical Science
Kitasato University Center for Natural Sciences, College of Liberal Arts and Sciences
University of Tokyo Department of Astronomy, School of Science
National Astronomical Observatory Subaru Telescope
University of Tokyo Department of Astronomy, School of Science
National Astronomical Observatory
University of Tokyo Institute of Astronomy, Faculty of Science
University of Tokyo Institute of Astronomy, Faculty of Science
National Astronomical Observatory Subaru Telescope
University of Tokyo Department of Astronomy, School of Science
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/ISAS)
雑誌名
第37回月・惑星シンポジウム
雑誌名(英)
Proceedings of the 37th ISAS Lunar and Planetary Symposium
ページ
103 - 106
発行年
2004-02
抄録（英）
Beta Pictoris is a prominent Vega like star, which has a dusty disk around the central star. This disk is supposed to be a debris dust disk, which means that the dust in the disk is recently replenished. But so far, there is no observational evidence to indicate dust replenishment. Disk spectra in the N band have been observed and the spatially resolved dust features were obtained from the disk. The feature shows ring-like small dust emission around the star. This small dust has too short life time to survive around the star, existence of the small dust means on-going dust replenishment is now taking in a place at this area. This is the first direct evidence of the dust replenishment around the Vega like star. This ring like structure is planetesimal belt like an asteroid belt in the solar system.
Evidence of dust replenishment zone around beta Pictoris
