Mangano 2007 共动系的光变曲线

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astro-ph/0701812 [abs, ps, pdf, other] :

Title: Rest frame light curves of Swift GRBs
Authors: V. Mangano (1), V. La Parola (1), E. Troja (1), G. Cusumano (1), T. Mineo (1), D. Burrows (2), S. Campana (3), M.Capalbi (4), G. Chincarini (3,5), N.Gehrels (6), P. Giommi (4), A. Moretti (3), M. Perri (4), P. Romano (3); ((1) INAF-IASF PA, (2) Dept of Astronomy & Astrophysics, PSU, (3) INAF-Osservatorio Astronomico di Brera, (4) ASI-Science Data Center, (5) Universita degli Studi di Milano, Bicocca)
Comments: 5 pages, 7 figures. Proceedings of "SWIFT and GRBs: Unveiling the Relativistic Universe" June 5-9, 2006 Venice (Italy)

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,>=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)>