STATISTICS OF COSMOLOGICAL GAMMA-RAY BURSTS

被引：78

作者：

DERMER, CD ^{[1
]}

机构：

[1] RICE UNIV, DEPT SPACE PHYS & ASTRON, HOUSTON, TX 77251 USA

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.68.1799

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A phenomenological model of gamma-ray burst spectra is used to calculate the statistics of gamma-ray bursts originating at cosmological distances. A model of bursters with no source evolution in a q0 = 1/2 Friedmann cosmology is in accord with recent observations of the differential V/V(max), distribution. The data are best fit with an average peak burst luminosity of 4(+/- 2)x 10(51) ergs s-1 and a present-day source emissivity of 940 +/- 440 bursts/(10(10) yr)Mpc3. A spectral test of the cosmological hypothesis is proposed.

引用

页码：1799 / 1802

页数：4

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