宇宙学与伽马射线暴
Cosmology with Gamma-Ray Bursts
摘要：
伽马射线暴（GRB）是宇宙中最亮的源，主要发射硬X射线能带，并且在红移高达~8.1处被探测到。因此，它们在原则上是宇宙学非常强大的探测器。本文简要回顾了利用伽玛暴测量宇宙学参数的研究，这些研究主要是基于光谱峰值光子能量与总辐射能量或光度之间的相关性。特别是，基于95个伽玛暴的富集样本，我将提供Amati等人（2008）的分析的更新，该分析旨在从Ep，i-Eiso相关性中提取关于Omega_M的信息，并在较小程度上提取关于Omega_Lambda的信息。我还简要讨论了使用伽玛暴作为IGM高分辨率吸收光谱学宇宙学信标的前景（例如，WHIM），并作为SFR的示踪剂，直到宇宙的“黑暗时代”（z > 6）。
英文摘要：
Gamma-Ray Bursts (GRBs) are the brightest sources in the universe, emit mostly in the hard X-ray energy band and have been detected at redshifts up to ~8.1. Thus, they are in principle very powerful probes for cosmology. I shortly review the researches aimed to use GRBs for the measurement of cosmological parameters, which are mainly based on the correlation between spectral peak photon energy and total radiated energy or luminosity. In particular, based on an enriched sample of 95 GRBs, I will provide an update of the analysis by Amati et al. (2008) aimed at extracting information on Omega_M and, to a less extent, on Omega_Lambda, from the Ep,i - Eiso correlation. I also briefly discuss the perspectives of using GRBs as cosmological beacons for high resolution absorption spectroscopy of the IGM (e.g., WHIM), and as tracers of the SFR, up to the "dark ages" (z > 6) of the universe.
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。
