Uncovering the mass-loss history of massive stars and the diversity of core-collapse supernovae through the circumstellar dust
Project/Area Number |
26400223
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Astronomy
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Research Institution | National Astronomical Observatory of Japan |
Principal Investigator |
Nozawa Takaya 国立天文台, 理論研究部, 特任助教 (90435975)
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Project Period (FY) |
2014-04-01 – 2018-03-31
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Project Status |
Completed (Fiscal Year 2017)
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Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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Keywords | ダスト / 超新星爆発 / 減光曲線 / 大質量星 / プレソーラー粒子 / 物質進化 / 可視光赤外線観測 / 超新星 / 金属欠乏星 / ダスト(星間塵) / プレソーラーグレイン / 質量放出 / 衝撃波 / 超新星残骸 / 化学進化 |
Outline of Final Research Achievements |
We investigate the origin of cosmic solid particles (dust grains) in the early unvierse. We find that very massive first stars could be the first sources of dust grains in the universe. We also show that large amounts of dust grains and flat extinction curves in high-redshift galaxies can be explained self-consistently by the state-of-the-art dust evolution model. We study on the extinction of Type Ia supernovae, showing that the unusual extinction curves observed for Type Ia supernovae are predominantly caused by interstellar dust. We also demonstrate that typical sizes of the interstellar dust are a few times smaller than that in our Galaxy. On the other hand, we constrain the physical condition of supernova ejecta from the measured sizes of presolar grains which are discovered in meteorites. We also derive the sizes of presolar grains that can survive the destruction in the interstellar medium and the thermal diffusion of isotopes in parent bodies of meteorites.
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Report
(5 results)
Research Products
(54 results)
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[Journal Article] Concurrent Formation of Carbon and Silicate Dust in Nova V1280 Sco2016
Author(s)
Sakon, I., Sako, S., Onaka, T., Nozawa, T., Kimura, Y., Fujiyoshi, T., Shimonishi, T., Usui, F., Takahashi, H., Ohsawa, R., Arai, A., Uemura, M., Nagayama, T., Koo, B-C., and Kozasa, T.
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Journal Title
The Astrophysical Journal
Volume: 817
Issue: 2
Pages: 145-167
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Dust Processing in Elliptical Galaxies2015
Author(s)
Hiroyuki Hirashita, Takaya Nozawa, Alexa Villaume, Sundar Srinivasan
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Journal Title
Monthly Notices of the Royal Astronomical Society
Volume: 454
Issue: 2
Pages: 1620-1633
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Dust Production Factories in the Early Universe: Formation of Carbon Grains in Red-supergiant Winds of Very Massive Population III Stars2014
Author(s)
Nozawa, T., Yoon, S.-C., Maeda, K., Kozasa, T., Nomoto, K., Langer, N.
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Journal Title
The Astrophysical Journal Letters
Volume: 787
Issue: 2
Pages: L17-L17
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] A Blue Point Source at the Location of Supernova 2011dh2014
Author(s)
Folatelli, G., Bersten, M. C., Benvenuto, O. G., Van Dyk, S. D., Kuncarayakti, H., Maeda, K., Nozawa, T., Nomoto, K., Hamuy, M., Quimby, R. M.
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Journal Title
The Astrophysical Journal Letters
Volume: 793
Issue: 2
Pages: L22-L22
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] The Origin of the Most Iron-poor Star2014
Author(s)
Marassi, S.; Chiaki, G.; Schneider, R.; Limongi, M.; Omukai, K.; Nozawa, T.; Chieffi, A.; Yoshida, N.
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Journal Title
The Astrophysical Journal
Volume: 794
Issue: 2
Pages: 100-100
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Presentation] TAOで紐解くダスト形成過程2016
Author(s)
野沢 貴也
Organizer
日本天文学会2016年春季年会
Place of Presentation
首都大学東京 南大沢キャンパス(東京都八王子市)
Year and Date
2016-03-14
Related Report
Invited
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