Electronic Resource
Springer
Astrophysics and space science
201 (1993), S. 347-358
ISSN:
1572-946X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The interpretation of the observedγ-ray burstV/V max statistic in terms of spatial distributions is model-dependent. Detection ofγ-ray bursts requires the counting rate in one or more detectors to exceed a thresholdC lim determined from a time-dependent background rateB(t). The sampling depth of the burst detector is thus time-dependent, and, if burst sources are non-uniform in space, the observedV/V max distribution will be affected byB(t). We demonstrate this effect with a simple geometric distribution of standard candles and argue thatV/V max statistic without information on threshold variations is insufficient for rigorous data analysis. Peak count rates and threshold values must be given separately for all events in order to facilitate a meaningful comparison of observations with theoretical distribution models.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00627206
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