The evolution of the universe illuminated by gamma-ray bursts
Project/Area Number |
17K14255
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Astronomy
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Research Institution | The University of Tokyo (2018-2020) National Astronomical Observatory of Japan (2017) |
Principal Investigator |
Niino Yuu 東京大学, 大学院理学系研究科(理学部), 特任助教 (50632163)
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Project Period (FY) |
2017-04-01 – 2021-03-31
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Project Status |
Discontinued (Fiscal Year 2020)
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Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
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Keywords | ガンマ線バースト / 突発天体 / 光学赤外線天文学 / 理論天文学 |
Outline of Final Research Achievements |
Long gamma-ray bursts (GRBs) are unprecedented laboratory of high-energy physics and probe toward the high-redshift universe. However, there are still many mysteries remain unsolved in the properties of GRBs. This study uncovers the connection between star-formation and occurrence of GRBs and the luminosity function of GRB optical afterglows in order to make GRBs a reliable probe toward the high-redshift universe.
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Academic Significance and Societal Importance of the Research Achievements |
GRBには、その特異な明るさから、直接観測の難しい宇宙初期の星・銀河生成を探る手がかりとなる期待がかかっている。しかし、GRB を星・銀河形成研究の指標として信頼性の高いものにするためには、GRBそのものの性質について解明すべき未解決問題が残されている。本研究はそれらの問題を解決し、GRBによる遠方宇宙研究の道を切り開くものである。
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Report
(4 results)
Research Products
(10 results)
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[Journal Article] The redshift-selected sample of long gamma-ray burst host galaxies: The overall metallicity distribution at z < 0.42017
Author(s)
Niino, Yuu; Aoki, Kentaro; Hashimoto, Tetsuya; Hattori, Takashi; Ishikawa, Shogo; Kashikawa, Nobunari; Kosugi, George; Onoue, Masafusa; Toshikawa, Jun; Yabe, Kiyoto
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Journal Title
Publications of the Astronomical Society of Japan
Volume: 69
Issue: 2
Pages: 27-37
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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