A New Distance Estimator and Spatial Distribution of GRBS Observed by BATSE

Heon-Young Chang, Suk-Jin Yoon, Chul-Sung Choi

We propose a redshift estimator for the long ($T_{90}>20$) gamma-ray bursts (GRBs) observed by the BATSE. It is based on an empirical relation between the redshift and the power-…