Heavy elements synthesized in an accretion disk around a black hole associated with gamma-ray bursts

Kenzo Arai, Shin Ichirou Fujimoto, Ryuichi Matsuba, Masa Aki Hashimoto

Research output: Contribution to journalArticle

Abstract

We examine nucleosynthesis inside an accretion disk with accretion rates 0.01 - 1M s-1 associated with gamma-ray bursts. The black hole mass is fixed to be 3M. The chemical composition of accreting gas far from the black hole is taken to be that of an oxygen-rich layer of a massive star before the collapse. The disk consists of five layers characterized by dominant elements: 16O, 28Si, 54Fe (and 56Ni), 4He, and nucleons. As the accretion rate increases, the individual layers shift outwards with keeping the overall profiles of composition. A similar situation may be realized in an accretion disk around an intermediate mass black hole produced in a collapsing Population III supermassive star.

Original languageEnglish
Pages (from-to)309-310
Number of pages2
JournalProgress of Theoretical Physics Supplement
Volume155
DOIs
Publication statusPublished - Jan 1 2004

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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