非高斯性、早期宇宙和伽玛暴。用伽马射线暴计数追踪宇宙的原始状态
Non-Gaussianities, early Universe, and GRBs. Tracing the primeval state of the Universe with number counts of Gamma-Ray Bursts
摘要：
我们研究了太初宇宙中的太初非高斯性对重子结构形成过程的影响。通过将高斯和非高斯情形下的宇宙恒星形成率与高红移再电离源的可探测性相联系，我们得到了不同模型下的预期伽马射线暴率。我们发现，高红移伽马射线暴的计数可以作为非高斯性的宇宙学探针，它们是区分早期非高斯效应的合适候选者。
英文摘要：
We investigate the effects of primordial non-Gaussianities in the primordial Universe on the baryonic structure formation process. By relating the cosmic star formation rate in Gaussian and non-Gaussian scenarios to the detectability of high-redshift sources of reionization, we derive the expected Gamma-Ray Burst rate in the different models. We find that counts of high-redshift Gamma-Ray Bursts can be used as cosmological probes of non-Gaussianities and that they are suitable candidates to distinguish non-Gaussian effects at early epochs.
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