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arXiv 1201.6372astro-ph.COgr-qchep-th
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测试暗能量和黑洞之间的联系

Testing the Proposed Connection between Dark Energy and Black Holes

A. Aykutalp, M. Spaans

摘要:

1997年,广义相对论的一个扩展被提出,预言暗能量密度Λ随宇宙中宏观黑洞的总数线性变化。我们探索了这个预言,发现在大部分恒星质量的黑洞就位后,Λ必须大致恒定,因此对于小于1的红移z。相反,最高的黑洞形成率对应于宇宙恒星形成历史中的峰值,早于z=1。这产生了一个快速下降的Λ,大约是5倍,从红移1到3。在更早的时间,在许多恒星形成之前,Λ的值应该比它现在的值小得多。这些预测的效应都与目前的数据一致,不久的将来的观测可以明确证实或反驳宇宙中暗能量密度和黑洞总数之间的联系。

英文摘要:

In 1997, an extension of general relativity was proposed that predicts the dark energy density Λ to vary linearly with the total number of macroscopic black holes in the universe. We explore this prediction and find that Λ must be roughly constant after the bulk of the stellar mass black holes are in place, so for a redshift z smaller than unity. Conversely, the highest black hole formation rate corresponds to the peak in the cosmic star formation history, earlier than z=1. This yields a fast declining Λ, by a factor of about 5, from redshift 1 to 3. At even earlier times, before many stars were formed, the value of Λ should be much smaller than its current value. These predicted effects are all consistent with current data, and near future observations can definitively confirm or disproof the link between the dark energy density and the total number of black holes in 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。

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