The Cosmological Evolution Trends of GRB Features

Details The Cosmological Evolution Trends of GRB Features The Cosmological Evolution Trends of GRB Features

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aipc..727...86w&link_type=abstract

GAMMA-RAY BURSTS: 30 YEARS OF DISCOVERY: Gamma-Ray Burst Symposium. AIP Conference Proceedings, Volume 727, pp. 86-89 (2004).

Mathematics

Logic

Gamma-Ray Sources, Gamma-Ray Bursts, Distances, Redshifts, Radial Velocities, Spatial Distribution Of Galaxies

Scientific paper

Amati et al. presented the results of spectral and energetic properties of several GRBs with known redshifts. Here we analyse the properties of two groups of GRBs, one group with known redshift from afterglow observation, and another group with redshift derived from the luminosity - variability relation. We study the redshift dependence of various GRBs features in their cosmological rest frames, and find that, for these two group GRB groups, their properties are all redshift dependent, i.e. their intrinsic duration, luminosity, radiated energy and peak energy E p, are all correlated with the redshift, which means that there are cosmological evolution effects on gamma-ray bursts features, and this can provide an interesting clue to the nature of GRBs.

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