期刊
ASTRONOMY & ASTROPHYSICS
卷 490, 期 1, 页码 31-36出版社
EDP SCIENCES S A
DOI: 10.1051/0004-6361:200810337
关键词
gamma rays: bursts; cosmology: cosmological parameters; cosmology: distance scale
Aims. Relations connecting gamma ray burst quantities can be used to constrain cosmographic parameters of the Hubble law at medium-high redshifts. Methods. We consider a sample of 27 gamma ray bursts to construct the luminosity distance to redshift relation and derive the values of the parameters q(0), j(0), and s(0). The analysis is compared with other methods in the literature. Results. Gamma gay bursts, if calibrated by SNeIa, seem reliable as distance indicators and give cosmographic parameters in agreement with the Lambda CDM model.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据