伽玛暴宇宙学
Cosmography by GRBs
摘要：
联系伽马射线暴量的关系可以用来约束中高红移下哈勃定律的宇宙学参数。我们考虑一个27个伽马射线暴的样本，建立了光度距离与红移的关系，并导出了参数$q_0$、$j_0$和$s_0$的值。与文献中的其他方法的分析进行了比较。伽马同性恋爆发，如果用SNeIa校准，似乎是可靠的距离指标，并给出符合$Λ$ CDM模型的宇宙学参数。
英文摘要：
Relations connecting gamma ray burst quantities can be used to constrain cosmographic parameters of the Hubble law at medium-high redshifts. 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. gamma gay bursts, if calibrated by SNeIa, seem reliable as distance indicators and give cosmographic parameters in agreement with the $Λ$CDM model.
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