Rest frame light curves of Swift GRBs

Details Rest frame light curves of Swift GRBs Rest frame light curves of Swift GRBs

2007-01-29

arxiv.org/abs/astro-ph/0701812v2

Nuovo Cim.B121:1297-1301,2006

Astronomy and Astrophysics

Astrophysics

5 pages, 7 figures. Proceedings of "SWIFT and GRBs: Unveiling the Relativistic Universe" June 5-9, 2006 Venice (Italy). New ve

Scientific paper

10.1393/ncb/i2007-10246-5

We have computed the luminosity rest frame light curves of the first 40 Gamma-ray bursts (GRBs) detected by Swift with well established redshift. We studied average properties of the light curves in the four subsamples of bursts given by z<1, 1=4. We conclude that all the last three subsamples share the same morphology and the same luminosity range. Very high redshift (z>=4) GRBs detected up to now are not intrinsically longer than lower redshift long GRBs. Nearby long GRBs (z<1) are fainter than average. Possible selection effect are under investigation.

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