Imprint of explosion mechanism on supernova relic neutrinos
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説明
The spectrum and event rate of supernova relic neutrinos are calculated taking into account the dependence on the time it takes for the shock wave in supernova cores to revive. The shock revival time should depend on the still unknown explosion mechanism of collapse-driven supernovae. The contribution of black-hole-forming failed supernovae is also considered. The total event rate is higher for models with a longer shock revival time and/or a failed-supernova contribution. The hardness of the spectrum does not strongly depend on the shock revival time, but the spectrum becomes hard owing to the failed supernovae. Therefore, the shock-revival-time dependence of supernova relic neutrinos has different systematics from the fractions of failed supernovae.
5 pages, 4 figures, version to appear in PRD with moderate revisions
収録刊行物
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- Physical Review D
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Physical Review D 88 (8), 083012-, 2013-10-24
American Physical Society (APS)
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キーワード
- High Energy Astrophysical Phenomena (astro-ph.HE)
- High Energy Physics - Phenomenology
- Cosmology and Nongalactic Astrophysics (astro-ph.CO)
- High Energy Physics - Phenomenology (hep-ph)
- FOS: Physical sciences
- Astrophysics - High Energy Astrophysical Phenomena
- Astrophysics - Cosmology and Nongalactic Astrophysics
詳細情報 詳細情報について
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- CRID
- 1360567184968029824
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- ISSN
- 15502368
- 15507998
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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