2013 Fiscal Year Final Research Report
Search for Earth mass exoplanet and free-floating planet via gravitational microlensing
| Project/Area Number |
23340044
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Astronomy
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| Research Institution | Osaka University |
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Principal Investigator |
SUMI Takahiro 大阪大学, 理学(系)研究科(研究院), 准教授 (30432214)
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| Co-Investigator(Renkei-kenkyūsha) |
ITOW Yoshitaka 名古屋大学, 太陽地球環境研究所, 教授 (50272521)
INUTSUKA Shuichiro 名古屋大学, 理学研究科, 教授 (80270453)
ABE Fumio 名古屋大学, 太陽地球環境研究所, 准教授 (80184224)
MATSUBARA Yutaka 名古屋大学, 太陽地球環境研究所, 准教授 (80202323)
MASUDA Kimiaki 名古屋大学, 太陽地球環境研究所, 准教授 (40173744)
OHNISHI Koji 長野工業高等専門学校, 一般科, 教授 (20290744)
SAKO Takashi 名古屋大学, 太陽地球環境研究所, 助教 (90324368)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | 光赤外線天文学 / 系外惑星 |
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| Research Abstract |
We, the MOA collaboration, conducted an exoplanet survey by using gravitational microlensing for three years and found 5,6,9 planets in 2011,12,13, respectively. One of these events, MOA-2011-BLG-262Lb may have a mass of less than the earth to be confirmed near future. The another planet, MOA-2011-BLG-293Lb was the first exoplanet in the habitable zone found by microlensing. we estimated the planetary abundance outside of the snow line and found the abundance is several times higher than that inside the snow line. We also found dozen free floating planet candidates.
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Research Products
(57 results)
