2002A&A...391.1141D

Query : 2002A&A...391.1141D

2002A&A...391.1141D - Astronomy and Astrophysics, volume 3911141-1153 (2002/9-1)

Efficient acceleration and radiation in Poynting flux powered GRB outflows.

DRENKHAHN G. and SPRUIT H.C.

Abstract (from CDS):

We investigate the effects of magnetic energy release by local magnetic dissipation processes in Poynting flux-powered GRBs. For typical GRB parameters (energy and baryon loading) the dissipation takes place mainly outside the photosphere, producing non-thermal radiation. This process converts the total burst energy into prompt radiation at an efficiency of 10-50%. At the same time the dissipation has the effect of accelerating the flow to a large Lorentz factor. For higher baryon loading, the dissipation takes place mostly inside the photosphere, the efficiency of conversion of magnetic energy into radiation is lower, and an X-ray flash results instead of a GRB. We demonstrate these effects with numerical one-dimensional steady relativistic MHD calculations.

Abstract Copyright: ∼

Journal keyword(s): gamma rays: bursts - magnetic fields - magnetohydrodynamics (MHD) - stars: winds, outflows

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 970111 gB 15 28 15.0 +19 36 18           ~ 140 0

Query : 2002A&A...391.1141D

Basic data :
GRB 970111 -- Gamma-ray Burst
Other object types: otypes_help 		gB (2013MNRAS,GRB,...)
ICRS coord. (ep=J2000) : 		15 28 15.0 +19 36 18 [ ] D 2012ApJ...746..156C
FK4 coord. (ep=B1950 eq=1950) : 		15 26 00.0 +19 46 38 [ ]
Gal coord. (ep=J2000) : 		029.6406 +53.3867 [ ]
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Identifiers (3) :
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GRB 970111 Trigger 5773 [STK2001] 10459c

References (140 between 1850 and 2026) (Total 140)
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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