Nagoya University
Nagoya University
Nagoya University
Nagoya University
Nagoya University
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)
National Astronomical Observatory of Japan
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)
The University of Tokyo
Subaru Telescope, National Astronomical Observatory of Japan
出版者
宇宙航空研究開発機構(JAXA)
出版者（英）
Japan Aerospace Exploration Agency (JAXA)
雑誌名
宇宙航空研究開発機構特別資料
雑誌名(英)
JAXA Special Publication: Proceedings of the SPICA Science Conference from Exoplanets to Distant Galaxies: SPICA's New Window on the Cool Universe
巻
JAXA-SP-17-010E
ページ
325 - 328
発行年
2018-03-09
会議概要（会議名, 開催地, 会期, 主催者等）（英）
SPICA Science Conference from Exoplanets to Distant Galaxies: SPICA's New Window on the Cool Universe (June 18-21, 2013. Ito Hall, the University of Tokyo), Bunkyou-ku, Tokyo, Japan
抄録（英）
How are planetary systems formed? How is life created? As an approach to these subjects, we propose a study of chemical evolution of solid materials in planet-forming disks based on observations with the SPICA Coronagraph Instrument (SCI). We focus on silicate grains and hydrocarbon molecules including polycyclic aromatic hydrocarbons (PAHs) as origin of rocky-planets and life, respectively. Our solar system is believed to be made of materials originated in the interstellar space. However, in our solar system, there are many kinds of materials, which are not common in the interstellar space (e.g. crystalline silicates and complex organic molecules). They must be formed at planet-forming stages. Because each material has its own condition for generation, we can obtain clues for events which occur at planet-forming stages, through studies of evolution of these materials. AKARI performed all-sky surveys in six infrared photometric bands with the wavelengths from 9 to 160 micrometers. A global picture of life cycle of solid materials in our Galaxy has been revealed from these data. Solid materials are supplied from mass-losing old stars to the interstellar space, and then incorporated into star forming activities. During this cycle, solid materials are processed in local physical environments, changing the infrared spectroscopic features. Based on these scientific results, as a next step, we plan to make detailed analyses of the evolution of the solid materials in star- and planet-forming sites using the SPICA/SCI.
内容記述
形態: カラー図版あり
内容記述（英）
Physical characteristics: Original contains color illustrations
Evolution of Solid Materials in Planet-Forming Disks: From AKARI to SPICA
AA1730027070.pdf
(561.72KB)
