Nucleosynthesis in aspherical explosions of population III stars

K. Nomoto, N. Tominaga, Masaomi Tanaka, K. Maeda, H. Umeda

研究成果: Conference contribution

抄録

We present the nucleosynthetic yields of Population III core-collapse supernovae (SNe) focusing on the cases of hyper-energetic (Hypernovae, HNe) and hyper-aspherical (jet-induced) explosions. We show that (1) the explosions with large energy deposition rate, Ėdep, are observed as GRB-HNe and their yields can explain the abundances of normal extremely metal-poor (EMP) stars, and (2) the explosions with small Ėdep are observed as GRBs without bright SNe and can be responsible for the formation of the C-rich EMP (CEMP) and the hyper metal-poor (HMP) stars. We thus propose that GRB-HNe and the Non-SN GRBs (dark hypernovae) belong to a continuous series of BH-forming massive stellar deaths with the relativistic jets of different Ėdep. We also show that the very peculiar Si-poor abundance can also be explained by the angle-delimited yield of aspherical explosion.

本文言語English
ホスト出版物のタイトルFirst Stars III
ページ291-296
ページ数6
990
DOI
出版ステータスPublished - 2008 4 28
外部発表はい
イベントFirst Stars III - Santa Fe, NM, United States
継続期間: 2007 7 152007 7 20

Other

OtherFirst Stars III
CountryUnited States
CitySanta Fe, NM
Period07/7/1507/7/20

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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