Cosmological expansion and local physics
Cosmological expansion and local physics
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DOI：
10.1103/physrevd.76.063510
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发表时间：
2007-07
影响因子：
5
通讯作者：
V. Faraoni;Audrey Jacques
中科院分区：
文献类型：
--
作者：
V. Faraoni;Audrey Jacques
在引力束缚系统中宇宙膨胀和局部吸引力之间的相互作用在不同的制度被重新审视。首先，弱引力牛顿系统被认为是，其次是各种精确的解决方案描述一个相对论性的中心对象嵌入在弗里德曼宇宙。它表明，最近发现的“全有或全无”行为（即，弱耦合系统是共动的，而强耦合系统抵抗宇宙膨胀）仅限于德西特背景。提出了新的精确解，它描述了黑洞完美地与一个通用的弗里德曼宇宙。本文还讨论了接近大裂缝的黑洞违反宇宙审查的可能性。
The interplay between cosmological expansion and local attraction in a gravitationally bound system is revisited in various regimes. First, weakly gravitating Newtonian systems are considered, followed by various exact solutions describing a relativistic central object embedded in a Friedmann universe. It is shown that the 'all or nothing' behavior recently discovered (i.e., weakly coupled systems are comoving while strongly coupled ones resist the cosmic expansion) is limited to the de Sitter background. New exact solutions are presented which describe black holes perfectly comoving with a generic Friedmann universe. The possibility of violating cosmic censorship for a black hole approaching the big rip is also discussed.