| Issue |
EAS Publications Series
Volume 61, 2013
Gamma-ray Bursts: 15 Years of GRB Afterglows – Progenitors, Environments and Host Galaxies from the Nearby to the Early Universe
|
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|---|---|---|
| Page(s) | 341 - 343 | |
| Section | Chapter VII: Short GRBs | |
| DOI | https://doi.org/10.1051/eas/1361054 | |
| Published online | 22 July 2013 | |
A.J. Castro-Tirado, J.Gorosabel and I.H. Park (eds)
EAS Publications Series, 61 (2013) 341-343
Nucleosynthesis from LGRB-type accretion disks
1 Department of Astronomy and Institute
of Theoretical Physics and Astrophysics, Xiamen University,
Xiamen, Fujian
361005,
China
2 State Key Laboratory of Theoretical
Physics, Institute of Theoretical Physics, Chinese Academy of Science,
Beijing
100190,
China
3 Nicolaus Copernicus Astronomical
Center, Bartycka 18, 00-716
Warszawa,
Poland
We investigate the vertical structure and element distribution of neutrino-dominated accretion flows around black holes in spherical coordinates with reasonable nuclear statistical equilibrium. According to our calculations, heavy nuclei tend to be produced in a thin region near the disk surface. In this thin region, we find that 56Ni is dominant in the flow with low accretion rate (e.g., 0.05M⊙s-1). The solutions indicate that 56Ni comes from the central engine, whose decay may drive the bumps in the light curve of core-collapse supernova.
© EAS, EDP Sciences 2013