On the use of V/V(max) for gamma-ray bursts

Details On the use of V/V(max) for gamma-ray bursts On the use of V/V(max) for gamma-ray bursts

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...400l..63b&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 400, no. 2, p. L63-L66.

Astronomy and Astrophysics

Astrophysics

20

Gamma Ray Bursts, Radiation Distribution, X Ray Sources, Astronomical Models, Background Radiation, Gamma Ray Observatory, Luminosity

Scientific paper

As applied to the BATSE observations, the V/V(max) test has shown definitively that gamma-ray bursts are not distributed homogeneously. It is shown that variations in the detection threshold smooth the distribution of V/V(max) values, and consequently this distribution should not be used to determine the nature of the source inhomogeneity. Models fitted to the V/V(max) distribution assuming a constant detection threshold are quantitatively incorrect; the true source density has a more extreme radial decrease than previously found. Models should be fitted to the observed distribution of peak burst photon fluxes corrected for detection incompleteness.

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