Cosmological brightness distribution fits of gamma-ray burst sources

被引：37

作者：

Horvath, I

Meszaros, P

Meszaros, A

机构：

[1] CENT RES INST PHYS,H-1525 BUDAPEST,HUNGARY

[2] CHARLES UNIV,DEPT ASTRON,PRAGUE 15000 5,CZECH REPUBLIC

来源：

ASTROPHYSICAL JOURNAL | 1996年 / 470卷 / 01期

关键词：

cosmology; theory; gamma rays; bursts; methods; statistical;

D O I：

10.1086/177849

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We discuss detailed Ms of the BATSE and PYO gamma-ray burst peak-flux distributions with Friedmann models taking into account possible density evolution and standard candle or power-law luminosity functions. A chi(2) analysis is used to estimate the goodness of the fits, and we derive the significance level of limits on the density evolution and luminosity function parameters. Cosmological models provide a good st over a range of parameter space that is physically reasonable.

引用

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页码：56 / 62

页数：7

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