TY - JOUR
T1 - Heavy elements synthesized in an accretion disk around a black hole associated with gamma-ray bursts
AU - Arai, Kenzo
AU - Fujimoto, Shin Ichirou
AU - Matsuba, Ryuichi
AU - Hashimoto, Masa Aki
PY - 2004
Y1 - 2004
N2 - 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.
AB - 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.
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U2 - 10.1143/PTPS.155.309
DO - 10.1143/PTPS.155.309
M3 - Article
AN - SCOPUS:11044238561
SN - 0375-9687
VL - 155
SP - 309
EP - 310
JO - Progress of Theoretical Physics Supplement
JF - Progress of Theoretical Physics Supplement
ER -