2013ApJ...762..102L

Query : 2013ApJ...762..102L

2013ApJ...762..102L - Astrophys. J., 762, 102 (2013/January-2)

The vertical composition of neutrino-dominated accretion disks in gamma-ray bursts.

LIU T., XUE L., GU W.-M. and LU J.-F.

Abstract (from CDS):

We investigate the vertical structure and element distribution of neutrino-dominated accretion flows around black holes in spherical coordinates using the reasonable nuclear statistical equilibrium. According to our calculations, heavy nuclei tend to be produced in a thin region near the disk surface, whose mass fractions are primarily determined by the accretion rate and vertical distribution of temperature and density. In this thin region, we find that 56Ni is dominant for the flow with a low accretion rate (e.g., 0.05 M☉/s), but 56Fe is dominant for the flow with a high accretion rate (e.g., 1 M☉/s). The dominant 56Ni in the aforementioned region may provide a clue to understanding the bumps in the optical light curve of core-collapse supernovae.

Abstract Copyright: ∼

Journal keyword(s): accretion, accretion disks - black hole physics - gamma-ray burst: general - nuclear reactions, nucleosynthesis, abundances

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 GRB 011211 gB 11 15 16 -21 56.0           ~ 305 0

Query : 2013ApJ...762..102L

Basic data :
GRB 011211 -- Gamma-ray Burst
Other object types: otypes_help 		gB (GRB,XRF)
ICRS coord. (ep=J2000) : 		11 15 16.0 -21 56 00 (Gamma-ray) [ ] E 2015ApJ...807...76L
FK4 coord. (ep=B1950 eq=1950) : 		11 12 47.6 -21 39 38 [ ]
Gal coord. (ep=J2000) : 		275.1948 +35.7057 [ ]
Radial velocity / Redshift / cz : 		V(km/s) 244692 [~] / z(~) 2.1435 [~] / cz 642605 [~]
   D 2023ApJ...954...13G
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Identifiers (2) :
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GRB 011211 XRF 011211

References (305 between 1850 and 2026) (Total 305)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Velocities : 1   

   

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