2010MNRAS.407.1972C

Query : 2010MNRAS.407.1972C

2010MNRAS.407.1972C - Mon. Not. R. Astron. Soc., 407, 1972-1980 (2010/September-3)

Redshift distribution and luminosity function of long gamma-ray bursts from cosmological simulations.

CAMPISI M.A., LI L.-X. and JAKOBSSON P.

Abstract (from CDS):

We study the luminosity function (LF), the comoving rate and the detection rate of long gamma-ray bursts (LGRBs) to high redshift, using galaxy catalogues constructed by combining high-resolution N-body simulations with semi-analytic models of galaxy formation. We assume the collapsar model and different metallicity thresholds and conclude that LGRBs are not good tracers of the star formation history in the Universe. By using the logN-logP diagram for Burst And Transient Source Experiment (BATSE) bursts, we then determine the LF (with and without evolution with redshift) and the formation rate of LGRBs, obtaining constraints on the slope of the power law. We check the resulting redshift distribution with Swift data updated to 2009 August, finding that models where LGRBs have as progenitors stars with Z < 0.3Z☉ and without evolution of the LF are in agreement with the data. We also predict that there are about ∼1 per cent of GRBs at redshift z > 6.

Abstract Copyright: © 2010 The Authors. Journal compilation © 2010 RAS

Journal keyword(s): gamma-ray burst: general - galaxies: high redshift

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 090812 gB 23 32 48.5 -10 36 17           ~ 165 0

Query : 2010MNRAS.407.1972C

Basic data :
GRB 090812 -- Gamma-ray Burst
Other object types: otypes_help 		gB (GRB)
ICRS coord. (ep=J2000) : 		23 32 48.5 -10 36 17 [ ] D 2012ApJ...746..156C
FK4 coord. (ep=B1950 eq=1950) : 		23 30 13.2 -10 52 52 [ ]
Gal coord. (ep=J2000) : 		070.9273 -65.1923 [ ]
Radial velocity / Redshift / cz : 		V(km/s) 253372 [~] / z(~) 2.452 [~] / cz 735091 [~]
   D 2010A&A...519A..73C
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Identifiers (1) :
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GRB 090812

References (165 between 1850 and 2026) (Total 165)
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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