Schedule Feb 10, 2006
A Statistical Study of the Redshifts of Long Gamma-Ray Bursts
Z. Bagoly, A. Meszaros, L.G. Balazs, I. Horvath, S. Klose, S. Larsson, P. Meszaros, F. Ryde, G. Tusn

The directly measured redshifts of the long gamma-ray bursts obtained from the afterglow data - are separated into two samples. The bursts detected first by the Swift satellite gives the \\\"Swift-sample\\\"; the remaining ones forms the \\\"non-Swift-sample\\\".We perfored five statistical tests to compare the redshifts in these two samples. All theses tests show that in the Swift sample the redshifts are on average larger.

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