Thermal evolution of stars influenced by supernova explosions in binary systems
| Project/Area Number |
16K05287
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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 | The Open University of Japan (2019)
The University of Tokyo (2016-2018) |
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Principal Investigator |
Suda Takuma 放送大学, 総務部総務課, プロジェクト研究員 (90374735)
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| Co-Investigator(Kenkyū-buntansha) |
森谷 友由希 東京大学, カブリ数物連携宇宙研究機構, 特任研究員 (60722949)
茂山 俊和 東京大学, 大学院理学系研究科(理学部), 准教授 (70211951)
斎藤 貴之 神戸大学, 理学研究科, 准教授 (40399291)
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| Project Period (FY) |
2016-04-01 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Keywords | 第一世代星 / 金属欠乏星 / 超新星爆発 / 流体シミュレーション / 大質量星 / 連星探査 / 超新星 / 恒星進化 / 元素合成 / 化学進化 / 光赤外天文学 / 理論天文学 |
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| Outline of Final Research Achievements |
We have demonstrated the impact of the collision of the ejecta of core-collapse supernova with a star in a binary system, using stellar models and hydrodynamical simulations. We have also conducted a survey project to detect the observational counterpart of the proposed model by looking for binary system in the progenitors of supernovae. The greatest achievement of this study is that we present a new methodology to find the evidence of the survivors of the first stars in the present universe.
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| Academic Significance and Societal Importance of the Research Achievements |
第一世代星の生き残りを発見することは2020年代の天文学における重要な科学目標の一つとされている。本研究は、銀河系内に第一世代星の生き残りが存在する可能性を提示するとともに、これまで考えられてこなかった新しい理論的枠組みを提唱している。また、観測研究では、近年話題となっている重力波の起源天体の探査にも資することが判明し、人類の知的創造活動への貢献が期待される。
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Report
(5 results)
Research Products
(126 results)
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[Journal Article] A measurement of interstellar polarization and an estimation of Galactic extinction for the direction of the X-ray black hole binary V404 Cygni2017
Author(s)
Itoh, Ryosuke; Tanaka, Yasuyuki T.; Kawabata, Koji S.; Uemura, Makoto; Watanabe, Makoto; Fukazawa, Yasushi; Kanda, Yuka; Akitaya, Hiroshi; Moritani, Yuki; Nakaoka, Tatsuya; Kawabata, Miho; Shiki, Kensei; Yoshida, Michitoshi; Oasa, Yumiko; Takahashi, Jun
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Journal Title
PASJ
Volume: 印刷中
Issue: 2
Pages: 25-31
DOI
Related Report
Peer Reviewed
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[Journal Article] Possible regular phenomena in EXO 2030+3752017
Author(s)
Laplace, Eva; Mihara, Tatehiro; Moritani, Yuki; Nakajima, Motoki; Takagi, Toshihiro; Makishima, Kazuo; Santangelo, Andrea
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Journal Title
Astronomy and Astrophysics
Volume: 597
Pages: A124-A124
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Systematic Study of Gamma-ray-bright Blazars with Optical Polarization and Gamma-Ray Variability2016
Author(s)
Itoh, R., Nalewajko, K., Fukazawa, Y., Uemura, M., Tanaka, Y.~T., Kawabata, K.~S., Madejski, G.~M., Schinzel, F.~K., Kanda, Y., Shiki, K., Akitaya, H., Kawabata, M., Moritani, Y., Nakaoka, T., Yoshida, M. 他6名
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Journal Title
The Astrophysical Journal
Volume: 833
Issue: 1
Pages: 77-77
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Presentation] SuMIRe-PFS[6] --- プロジェクト概要と進捗状況まとめ 20172017
Author(s)
田村直之, 村山斉, 高田昌広, 下農淳司, 森谷友由希, 矢部清人, 安田直樹, 石塚由紀, 高遠徳尚, 鎌田有紀子, 上田暁俊, 他 PFS コラボレーション
Organizer
日本天文学会2017年秋季年会
Related Report
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[Presentation] The SAGA (Stellar Abundances for Galactic Archaeology) Database for Stars in Dwarf Galaxies2016
Author(s)
T. Suda, J. Hidaka, Y. Katsuta, S. Yamada, Y. Ohtani, M. Masuyama, K. Noda, K. Wada, M. Y. Fujimoto, W. Aoki
Organizer
Galactic Archaeology and Stellar Physics
Place of Presentation
Shine Dome, Canberra(オーストラリア)
Year and Date
2016-11-21
Related Report
Int'l Joint Research
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