Search for extrasolar planets with microlensing follow-up observations

2015 Fiscal Year Final Research Report

• Project/Area Number: 23340064
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Nagoya University
• Principal Investigator: Abe Fumio 名古屋大学, 宇宙地球環境研究所, 准教授 (80184224)
• Co-Investigator(Kenkyū-buntansha): YONEHARA Atsunori 京都産業大学, 理学部, 教授 (10454472) ; KURITAS Mikio 京都大学, 理学研究科, 准教授 (20419427) ; NAITO Hiroyuki 名古屋大学, 理学研究科, 研究員 (30547550)
• Co-Investigator(Renkei-kenkyūsha): SUMI Takahiro 大阪大学, 理学研究科, 准教授 (30432214)
• Project Period (FY): 2011-04-01 – 2016-03-31
• Keywords: 太陽系外惑星 / 重力レンズ / 光学赤外線天文学

Outline of Final Research Achievements

Microlensing method in planet hunting is done by wide field survey to find microlensing events then follow-up observations to find anomaly caused by the planet. This study is aimed to conduct follow-up observations with telescopes including Mt John 61 cm B&C and SAAO 1.4 m IRSF. The planets discovered are expected to use understanding formation of the planets.

The progress of the study was fairly good. Total number of planets discovered in the period of this study is 29. In those planets, there were several interesting discoveries including two earth mass planet orbiting a member of M dwarf binary. Including those planets, the number of planets discovered with microlensing become 26. Statistical analyses are in progress to understand formation of planets.

Free Research Field

宇宙物理