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arXiv 0910.1152astro-ph.GA
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晕黑洞的个数和熵

Number and Entropy of Halo Black Holes

Paul H. Frampton, Kevin Ludwick

摘要:

基于微透镜和磁盘稳定性的限制,无论有没有限制,从广泛的二进制调查,我们估计的总数和熵的中间质量黑洞。假设可见宇宙由质量为$\sim 10^{12} M_{\odot}$的$10^{11}$晕组成,平均质量为$\sim 10^7 M_{\odot}$的典型核心黑洞将宇宙的无量纲熵($S/k$)设定为1000戈戈尔。所有暗物质都被认定为黑洞,这将使宇宙的无量纲熵达到1000万googols,这意味着暗物质可以贡献超过99%的熵,这有利于所有暗物质都成为$ \sim 10^{5} M_{\odot}$质量体系中的黑洞。

英文摘要:

Based on constraints from microlensing and disk stability, both with and without limitations from wide binary surveys, we estimate the total number and entropy of intermediate mass black holes. Given the visible universe comprises $10^{11}$ halos each of mass $\sim 10^{12} M_{\odot}$, typical core black holes of mean mass $\sim 10^7 M_{\odot}$ set the dimensionless entropy ($S/k$) of the universe at a thousand googols. Identification of all dark matter as black holes sets the dimensionless entropy of the universe at ten million googols, implying that dark matter can contribute over 99% of entropy, which favors all dark matter as black holes in the mass regime of $ \sim 10^{5} M_{\odot}$.

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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