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arXiv 0908.1930astro-ph.COastro-ph.HE
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GRB作为宇宙学工具的研究进展

Advances on GRB as cosmological tools

G. Ghirlanda

摘要:

近年来,人们发现了伽马射线暴(GRB)瞬发和余辉性质之间的一些有趣的关系。其中一些相关性也被提出来标准化伽玛暴能量学,将它们用作标准烛光,限制宇宙的膨胀历史直到z>6。然而,考虑到大多数这些相关性的性质仍然无法解释,只有较少分散的相关性可以用来约束宇宙学参数。给出了更新的E_peak-E_gamma相关性。注意事项的标准化伽玛射线暴能量的替代方法进行了讨论。

英文摘要:

Several interesting correlations among Gamma Ray Bursts (GRB) prompt and afterglow properties have been found in the recent years. Some of these correlations have been proposed also to standardize GRB energetics to use them as standard candles in constraining the expansion history of the universe up to z>6. However, given the still unexplained nature of most of these correlations, only the less scattered correlations can be used for constraining the cosmological parameters. The updated E_peak-E_gamma correlation is presented. Caveats of alternative methods of standardizing GRB energetics are discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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