2004ApJ...608L...5L

Query : 2004ApJ...608L...5L

2004ApJ...608L...5L - Astrophys. J., 608, L5-L8 (2004/June-2)

Opaque or transparent? a link between neutrino optical depths and the characteristic duration of short gamma-ray bursts.

LEE W.H., RAMIREZ-RUIZ E. and PAGE D.

Abstract (from CDS):

Cosmological gamma-ray bursts (GRBs) are thought to occur as a result of violent hypercritical accretion onto stellar mass black holes, following either core collapse in massive stars or compact binary mergers. This dichotomy may be reflected in the two classes of bursts having different durations. Dynamical calculations of the evolution of these systems are essential if one is to establish characteristic relevant timescales. We show here for the first time the result of dynamical simulations, lasting approximately 1 s, of postmerger accretion disks around black holes, using a realistic equation of state and considering neutrino emission processes. We find that the inclusion of neutrino optical depth effects produces important qualitative temporal and spatial transitions in the evolution and structure of the disk, which may directly reflect on the duration and variability of short GRBs.

Abstract Copyright: ∼

Journal keyword(s): Accretion, Accretion Disks - Dense Matter - Gamma Rays: Bursts - Hydrodynamics - Neutrinos

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 PSR J0737-3039 Psr 07 37 51.248 -30 39 40.83           ~ 445 1

Query : 2004ApJ...608L...5L

Basic data :
PSR J0737-3039 -- Pulsar
Other object types: otypes_help 		Psr (2012ApJ,PSR), X (2XMM), Rad ([CGB2005])
ICRS coord. (ep=J2000) : 		07 37 51.248 -30 39 40.83 [ ] B 2005ApJ...634L.101C
FK4 coord. (ep=B1950 eq=1950) : 		07 35 53.559 -30 32 49.69 [ ]
Gal coord. (ep=J2000) : 		245.235749 -04.504850 [ ]
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Hierarchy : number of linked objects
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: 2 		Display criteria :

Identifiers (3) :
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PSR J0737-3039 2XMM J073751.4-303940 [CGB2005] J073751.248-303940.83

References (445 between 1850 and 2026) (Total 445)
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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Notes (1) :

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