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arXiv 1007.4289astro-ph.HEgr-qc
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利用瞬变事件的时间分布表征宇宙学源布居

Using temporal distributions of transient events to characterize cosmological source populations

E. Howell, D. Coward, R. Burman, D. Blair

摘要:

在宇宙学瞬变的时间序列中,最亮的事件服从观测时间依赖性,这一点常常被忽视。这种依赖性可以用来探测电磁波和引力波瞬变的全局性质(Howell et al. 2007 a,Coward & Burman 2005)。我们描述了一个新的关系的基础上的峰值通量-观测时间分布,并表明它是不变的光源的光度分布(豪厄尔等。2007年b)。应用这个关系,结合一个新的数据分析过滤器,\emph{Swift}伽马射线暴数据,我们证明,它可以约束他们的率密度。

英文摘要:

The brightest events in a time series of cosmological transients obey an observation time dependence which is often overlooked. This dependence can be exploited to probe the global properties of electromagnetic and gravitational wave transients (Howell et al. 2007a, Coward & Burman 2005). We describe a new relation based on a peak flux--observation time distribution and show that it is invariant to the luminosity distribution of the sources (Howell et al. 2007b). Applying this relation, in combination with a new data analysis filter, to \emph{Swift} gamma-ray burst data, we demonstrate that it can constrain their rate density.

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