The Swift satellite and redshifts of long gamma-ray bursts

Abstract

Until 6 October 2005 sixteen redshifts had been measured of long gamma-ray bursts discovered by the Swift satellite. Further 45 redshifts have been measured of the long gamma-ray bursts discovered by other satellites.

Here we perform five statistical tests comparing the redshift distributions of these two samples. They show that in the Swift sample the redshifts are on average larger.

Keywords

• Swift
• satellite
• redshifts
• gamma-ray
• bursts