@inproceedings{oai:jaxa.repo.nii.ac.jp:00003046, author = {深川, 美里 and Fukagawa, Misato}, book = {宇宙航空研究開発機構特別資料, JAXA Special Publication: Proceedings of the SPICA Science Conference from Exoplanets to Distant Galaxies: SPICA's New Window on the Cool Universe}, month = {Mar}, note = {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, I provide a very brief overview on recent observations of protoplanetary disks, focusing on statistical studies about disk lifetime and mass, high-angular-resolution imaging in scattered light at near-infrared wavelengths and in thermal emission from dust grains in submillimeter. Although the angular resolution of SPICA is not sufficient to resolve detailed structure, SPICA will contribute to investigations of gas content in disks which is a fundamental property to understand planet formation and evolution. In addition, detection of water and organic molecules will be important in the astrobiological context. Combining observations at other wavelengths will allow us to appropriately interpret the observed data and extract the realistic properties of protoplanetary disks., 形態: カラー図版あり, Physical characteristics: Original contains color illustrations, 資料番号: AA1730027069, レポート番号: JAXA-SP-17-010E}, pages = {321--324}, publisher = {宇宙航空研究開発機構(JAXA), Japan Aerospace Exploration Agency (JAXA)}, title = {Current Understanding of Young Circumstellar Disks: Observations of Gaseous Protoplanetary Disks}, volume = {JAXA-SP-17-010E}, year = {2018} }