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arXiv 1401.7740gr-qc
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用广义初始微扰廓线研究原初黑洞的形成条件

Investigating formation condition of primordial black holes for generalized initial perturbation profiles

Tomohiro Nakama, Tomohiro Harada, A. G. Polnarev, Jun'ichi Yokoyama

摘要:

原初黑洞(PBH)是宇宙学中探测辐射支配时期小尺度曲率扰动的原初谱的重要工具。我们数值求解球对称的高度扰动配置的演变,以澄清PBH形成的标准,使用广泛的一类曲率轮廓特征在于由五个参数。结果表明,形成或不形成PBH本质上只取决于两个主参数。

英文摘要:

Primordial black holes (PBHs) are an important tool in cosmology to probe the primordial spectrum of small-scale curvature perturbations that reenter the cosmological horizon during radiation domination epoch. We numerically solve the evolution of spherically symmetric highly perturbed configurations to clarify the criteria of PBHs formation using a wide class of curvature profiles characterized by five parameters. It is shown that formation or non-formation of PBHs is determined essentialy by only two master parameters.

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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