| Project/Area Number |
23540263
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Astronomy
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
SATO BUNEI 東京工業大学, 理工学研究科, 准教授 (40397823)
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| Co-Investigator(Renkei-kenkyūsha) |
IZUMIURA Hideyuki 国立天文台, 岡山天体物理観測所, 准教授 (00211730)
KAMBE Eiji 国立天文台, 岡山天体物理観測所, 特任助教 (80435510)
ANDO Hiroyasu 国立天文台, 光赤外研究部, 名誉教授 (90111559)
TAKEDA Yoichi 国立天文台, 光赤外研究部, 准教授 (50373189)
NOGUCHI Kunio 国立天文台, 光赤外研究部, 教授 (10111824)
YOSHIDA Michitoshi 広島大学, 宇宙科学センター, 教授 (90270446)
IKOMA Masahiro 東京大学, 理学系研究科, 准教授 (80397025)
IDA Shigeru 東京工業大学, 地球生命研究所, 教授 (60211736)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 天文学 / 視線速度観測 / 測光観測 / 太陽系外惑星 / 中質量星 / 巨星 |
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| Research Abstract |
We conducted a planet-search program with a precise Doppler technique targeting intermediate-mass giants and dwarfs in order to uncover poplulations of less-massive and short-period planets around such stars. We succeeded in discovering new planets less massive than two Jupiter-mass around interemdiate-mass giants, which have rarely been found around them. Also, we identified a planet candidate around an early-type star in an open cluster. The discoveries offer new insight into origins of mass and orbital-period distribution of planets around intermediate-mass stars.
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