2017 Fiscal Year Final Research Report
Search for Optical Infrared Counterpart of Gravitational Wvave Sources
| Project Area | New development in astrophysics through multimessenger observations of gravitational wave sources |
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| Project/Area Number |
24103003
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| Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | National Astronomical Observatory of Japan (2016-2017)
Hiroshima University (2012-2015) |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
太田 耕司 京都大学, 理学研究科, 教授 (50221825)
柳澤 顕史 国立天文台, 岡山天体物理観測所, 助教 (90311183)
本原 顕太郎 東京大学, 大学院理学系研究科(理学部), 准教授 (90343102)
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| Co-Investigator(Renkei-kenkyūsha) |
DOI Mamoru 東京大学, 大学院理学系研究科, 教授 (00242090)
KAWABATA Koji 広島大学, 宇宙科学センター, 教授 (60372702)
NAGAYAMA Takahiro 鹿児島大学, 理学研究科, 准教授 (00533275)
FUJISAWA Kenta 山口大学, 時間学研究所, 教授 (70311181)
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| Project Period (FY) |
2012-06-28 – 2017-03-31
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| Keywords | 光学赤外線天文学 / 電波天文学 / 重力波天体 / 突発天体 / 天文観測装置開発 |
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| Outline of Final Research Achievements |
We constructed an observation network J-GEM for follow-up observation of gravity wave (GW) sources to detect optical-infrared counterpart of GW event. We carried out optical-infrared follow-up observations for five GW alerts including the first GW detection GW150914 using the J-GEM network. For the GW event GW170817, which was the first detection of GW from a binary neutron star merger, follow-up observations using the Subaru Telescope, South Africa IRSF and so on were performed. As a result, we succeeded in detecting the optical-infrared counterpart of the event. We compared the observation results with theoretical calculations in detail, and obtained evidence that huge amount of r-process elements was synthesized by the neutron star coalescence. For the J-GEM, we also developed observation instruments including an ultra wide field CMOS camera, an integral field spectroscopy system, a wide field infrared camera, and a 50 cm robot telescope.
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| Free Research Field |
光学赤外線天文学
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