期刊
ASTROPHYSICAL JOURNAL
卷 644, 期 1, 页码 378-384出版社
IOP PUBLISHING LTD
DOI: 10.1086/503326
关键词
gamma rays : bursts; instrumentation : detectors
The dependence of Swift's detection sensitivity on a burst's temporal and spectral properties shapes the detected burst population. Using simplified models of the detector hardware and the burst trigger system, I find that Swift is more sensitive to long, soft bursts than CGRO's BATSE, a reference detector because of the large burst database it has accumulated. Swift has increased sensitivity in the parameter space region into which time dilation and spectral redshifting move high-redshift bursts.
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