2009MNRAS.394L.117N

Query : 2009MNRAS.394L.117N

2009MNRAS.394L.117N - Mon. Not. R. Astron. Soc., 394, L117-L120 (2009/March-3)

A turbulent model of gamma-ray burst variability.

NARAYAN R. and KUMAR P.

Abstract (from CDS):

A popular paradigm to explain the rapid temporal variability observed in gamma-ray burst (GRB) light curves is the internal shock model. We propose an alternative model in which the radiating fluid in the GRB shell is relativistically turbulent with a typical eddy Lorentz factor γt. In this model, all pulses in the gamma-ray light curve are produced at roughly the same distance R from the centre of the explosion. The burst duration is ~R/cΓ2, where Γ is the bulk Lorentz factor of the expanding shell, and the duration of individual pulses in the light curve is ~R/cΓ2γ2t. The model naturally produces highly variable light curves with ~γ2t individual pulses. Even though the model assumes highly inhomogeneous conditions, nevertheless the efficiency for converting jet energy to radiation is high.

Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS

Journal keyword(s): radiation mechanisms: non-thermal - gamma-rays: bursts

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 SN 2003dh SN* 10 44 50.030 +21 31 18.15     16.2     SNIcpec 1261 1

Query : 2009MNRAS.394L.117N

Basic data :
SN 2003dh -- SuperNova
Other object types: otypes_help 		SN* (2012A&A,SN), gB (GRB,XRF)
ICRS coord. (ep=J2000) : 		10 44 50.030 +21 31 18.15 (Optical) [ ] D 2007ApJ...659.1431E
FK4 coord. (ep=B1950 eq=1950) : 		10 42 07.590 +21 47 04.91 [ ]
Gal coord. (ep=J2000) : 		216.986456 +60.699959 [ ]
Radial velocity / Redshift / cz : 		V(km/s) 46353 [3] / z(~) 0.16867 [0.00001] / cz 50566.0 [3.0]
   D 2007ApJ...671..628T
Spectral type: 		SNIcpec C 2008yCat....1.2024B
Fluxes (1) :
V 16.2 [~] D 2008yCat.2283....0B
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Identifiers (6) :
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SN 2003dh GRB 030329 OT 20030329
GRB 030329A HETE Trigger 2652 XRF 030329

References (1261 between 1850 and 2026) (Total 1261)
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