Preliminary results of a Monte Carlo simulation of burst detections by BATSE
作者:
J. C. Higdon,
Maarten Schmidt,
M. N. Brock,
期刊:
AIP Conference Proceedings
(AIP Available online 1991)
卷期:
Volume 265,
issue 1
页码: 388-389
ISSN:0094-243X
年代: 1991
DOI:10.1063/1.42767
出版商: AIP
数据来源: AIP
摘要:
We have investigated numerically the effect of varying BATSE trigger parameters on the modeled BATSE detection rate. We have quantified the systematic effects generated by the complex interplay of the trigger times, variations in the signal‐to‐noise ratio for burst detection as well as the time scale over which backgrounds are determined, and the number of required detections above threshold. Our study employed measured background rates in large area detectors (LAD) for the day July 4, 1991. Earth blockage has been included. To model burst temporal profiles we used a sample of digitized Konus1profiles for the 50 most intense bursts detected by Venera 11 and 12. Our present, somewhat preliminary study demonstrates that, first, employing a third detection, at a reduced signal‐to‐noise ratio, to resolve a burst does not increase the detection rate, and second, the BATSE detection rate is quite insensitive to variations in the time scale over which the background is determined.
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