On the nature of slowly rising interaction-powered supernovae
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- Takashi J Moriya
- National Astronomical Observatory of Japan, National Institutes of Natural Sciences , 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
書誌事項
- 公開日
- 2023-07-21
- 資源種別
- journal article
- 権利情報
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- https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model
- DOI
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- 10.1093/mnras/stad2197
- 10.48550/arxiv.2307.10553
- 公開者
- Oxford University Press (OUP)
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説明
<jats:title>ABSTRACT</jats:title> <jats:p>Some interaction-powered supernovae have long rise times of more than 100 d. We show that such long rise times are naturally expected if cirumstellar matters (CSM) have a flat density structure (s ≲ 1.5, where ρCSM∝r−s). In such cases, bolometric luminosities from the CSM interaction keep increasing as long as the CSM interacts with the outer layers of the SN ejecta. Thus, the rise time is determined by the dynamical time-scale in which the reverse shock propagates the outer layers of the SN ejecta, not by the time-scales in which photons diffuse in the CSM as often considered. Interaction-powered supernovae with very long rise times can be an important probe of extensive non-steady mass-loss in massive stars.</jats:p>
収録刊行物
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- Monthly Notices of the Royal Astronomical Society
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Monthly Notices of the Royal Astronomical Society 524 (4), 5309-5313, 2023-07-21
Oxford University Press (OUP)
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詳細情報 詳細情報について
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- CRID
- 1360021390560383232
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- ISSN
- 13652966
- 00358711
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- 資料種別
- journal article
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- データソース種別
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- Crossref
- KAKEN
- OpenAIRE
