Astronomy and Astrophysics – Astrophysics
Scientific paper
1995-12-19
Astronomy and Astrophysics
Astrophysics
5 LaTeX pages with 1 Postscript figure included using psfig.sty, uses revtex.sty, aps.sty and aipbook.sty available at ftp://a
Scientific paper
If gamma-ray bursts have a cosmological origin, the sources are expected to trace the large-scale structure of luminous matter in the universe. I use a new likelihood method that compares the counts-in-cells distribution of gamma-ray bursts in the BATSE 3B catalog with that expected from the known large-scale structure of the universe, in order to place a constraint on the distance scale to cosmological bursts. I find, at the 95% confidence level, that the comoving distance to the ``edge'' of the burst distribution is greater than 630 $h^{-1}$ Mpc (z > 0.25), and that the nearest burst is farther than 40 $h^{-1}$ Mpc. The median distance to the nearest burst is 170 $h^{-1}$ Mpc, implying that the total energy released in gamma-rays during a burst event is of order $3 \times 10^{51}~h^{-2}$ erg. None of the bursts that have been observed by BATSE are in nearby galaxies, nor is a signature from the Coma cluster or the ``Great Wall'' likely to be seen in the data at present.
No associations
LandOfFree
A Constraint on the Distance Scale to Cosmological Gamma--Ray Bursts does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A Constraint on the Distance Scale to Cosmological Gamma--Ray Bursts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Constraint on the Distance Scale to Cosmological Gamma--Ray Bursts will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-677978