Japan Geoscience Union Meeting 2015

Presentation information


Symbol P (Space and Planetary Sciences) » P-PS Planetary Sciences

[P-PS21] Planetary Sciences

Sun. May 24, 2015 4:15 PM - 6:00 PM A02 (APA HOTEL&RESORT TOKYO BAY MAKUHARI)

Convener:*Kosuke Kurosawa(Planetary Exploration Research Center, Chiba Institute of Technology), Keiko Hamano(Department of Earth and Planetary Science, Graduate School of Science, University of Tokyo), Chair:Hiroyuki Kurokawa(Graduate School of Science, Nagoya University), Yuji Matsumoto(Center for Computational Astropyhsics, National Astronomical Observatory of Japan)

4:15 PM - 4:30 PM

[PPS21-21] Five Years of SEEDS: Direct Imaging of Exoplanets and Disks with Subaru

*Motohide TAMURA1, Team SEEDS1 (1.The University of Tokyo, Graduate School of Science)

Keywords:exoplanet, disk, direct inaging, infrared

SEEDS (Strategic Explorations of Exoplanets and Disks with Subaru) is the first Subaru Strategic Program, whose aim is to conduct a direct imaging survey for giant planets as well as protoplanetary/debris disks at a few to a few tens of AU region around 500 nearby solar-type or more massive young stars devoting 120 Subaru nights for 5 years. The targets are composed of five categories spanning the ages of ~1 Myr to ~1 Gyr. Some RV-planet targets with older ages are also observed. The survey employs the new high-contrast instrument HiCIAO, a successor of the previous NIR coronagraph camera CIAO for the Subaru Telescope. We describe the outline of this survey and present its main results. The results includes discovery and characterization of 4 planets via direct imaging. detection of more than 2 brown dwarfs, discovery of companions around more than 2 RV-planetary systems. We also report the discovery of unprecedentedly detailed structures of about 20 protoplanetary disks and some debris disks. The detected structures such as wide gaps and spirals arms of a Solar-system scale could be signpost of planet.