Host Galaxies As Gamma-Ray Burst Distance Indicators

Statistics – Methodology

Scientific paper

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Galaxies, Luminosity, Afterglows, Distance Measuring Equipment, Gamma Ray Bursts, Red Shift

Scientific paper

We calculate the distributions of the total burst energy, the peak luminosity and the X-ray afterglow energy using burst observations and distances to the associated host galaxies. To expand the sample, we include redshift estimates for host galaxies without spectroscopic redshifts. The methodology requires a model of the host galaxy population; we found that in the best model the burst rate is proportional to the host galaxy luminosity at the time of the burst.

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