可能形成广义相对论辐射压力支持的恒星或“永恒坍缩物体”
Likely formation of general relativistic radiation pressure supported stars or "eternally collapsing objects"
摘要：
霍伊尔和福勒证明了即使在牛顿引力下也可能存在辐射压支撑星（RPSS）。很久以后，米特拉发现人们也可以设想他们的广义相对论（GR）版本，“相对论辐射压力支持的恒星”（RRPSSs）。RPSS有$z\ll 1$，RRPSS有$z \gg 1$，其中$z$是表面引力红移。在这里，我们通过回顾收缩的大质量恒星在进入其{ \em光子球}时必须开始捕获辐射，来详细阐述RRPSS在持续引力坍缩过程中的形成。结果发现，无论收缩过程的细节，捕获的辐射通量应达到相应的爱丁顿值在足够大的$z\gg 1$。这意味着在具有$z=\infty$的真正BH状态渐近形成之前，持续的GR塌缩可能产生具有$z\gg 1$的中间RRPSS。一个令人兴奋的结果是，恒星质量的黑洞候选者，在目前的时代，应该是夸克-胶子等离子体的热球，正如罗伊曾在最近的一篇题为“{ \it QCD反对黑洞？} ".
英文摘要：
Hoyle and Folwler showed that there could be Radiation Pressure Supported Stars (RPSS) even in Newtonian gravity. Much later, Mitra found that one could also conceive of their General Relativistic (GR) version, "Relativistic Radiation Pressure Supported Stars" (RRPSSs). While RPSSs have $z\ll 1$, RRPSSs have $z \gg 1$, where $z$ is the surface gravitational redshift. Here we elaborate on the formation of RRPSSs during continued gravitational collapse by recalling that a contracting massive star must start trapping radiation as it would enter its {\em photon sphere}. It is found that, irrespective of the details of the contraction process, the trapped radiation flux should attain the corresponding Eddington value at sufficiently large $z\gg 1$. This means that continued GR collapse may generate an intermediate RRPSS with $z\gg 1$ before a true BH state with $z=\infty$ is formed asymptotically. An exciting consequence of this is that the stellar mass black hole candidates, at present epoch, should be hot balls of quark gluon plasma, as has been discussed by Royzen in a recent article entitled "{\it QCD against black holes?}".
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