Nucleosynthesis in core-collapse supernovae and GRB-metal-poor star connection

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Citations (Scopus)

Abstract

We review the nucleosynthesis yields of core-collapse supernovae (SNe) for various stellar masses, explosion energies, and metallicities. Comparison with the abundance patterns of metal-poor stars provides excellent opportunities to test the explosion models and their nucleosynthesis. We show that the abundance patterns of extremely metal-poor (EMP) stars, e.g., the excess of C, Co, Zn relative to Fe, are in better agreement with the yields of hyper-energetic explosions (Hypernovae, HNe) rather than normal supernovae. We note that the variation of the abundance patterns of EMP stars are related to the diversity of the Supernova-GRB connection. We summarize the diverse properties of (1) GRB-SNe, (2) Non-GRB HNe/SNe, (3) XRF-SN, and (4) Non-SN GRB. In particular, the Non-SN GRBs (dark hypernovae) have been predicted in order to explain the origin of C-rich EMP stars. We show that these variations and the connection can be modeled in a unified manner with the explosions induced by relativistic jets. Finally, we examine whether the most luminous supernova 2006gy can be consistently explained with the pair-instability supernova model.

Original languageEnglish
Title of host publicationSUPERNOVA 1987A
Subtitle of host publication20 YEARS AFTER: Supernovae and Gamma-Ray Bursters
Pages412-426
Number of pages15
DOIs
Publication statusPublished - 2007 Dec 14
Externally publishedYes
EventSUPERNOVA 1987A: 20 YEARS AFTER: Supernovae and Gamma-Ray Bursters - Aspen, CO, United States
Duration: 2007 Feb 192007 Feb 23

Publication series

NameAIP Conference Proceedings
Volume937
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherSUPERNOVA 1987A: 20 YEARS AFTER: Supernovae and Gamma-Ray Bursters
CountryUnited States
CityAspen, CO
Period07/2/1907/2/23

Keywords

  • Gamma rays: bursts
  • Nuclear reactions, nucleosynthesis, abundances
  • Stars: Population II
  • Stars: abundances
  • Supernovae: general

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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