In this paper, we examine the gravitational collapse of a nonrelativistic charged perfect fluid interacting with a dark energy component. Given a simple factor for the energy transfer, we obtain a nonsingular interior solution which naturally matches the Reissner–Nordström–de Sitter exterior geometry. We also show that the interacting parameter is proportional to the overall charge of the final black hole thus formed. For the case of quasi-extremal configurations, we propose a statistical model for the entropy of the collapsed matter. This entropy extends Bekenstein’s geometrical entropy by an additive constant proportional to the area of the extremal black hole.

中文翻译：

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带电尘埃坍缩产生的非奇异黑洞：在广义相对论中规避内部奇点的具体机制

在本文中，我们研究了非相对论带电完美流体与暗能量成分相互作用的引力坍缩。给定一个简单的能量转移因素，我们获得了一个非奇异的内部解决方案，它自然地匹配 Reissner-Nordström-de Sitter 外部几何形状。我们还表明，相互作用参数与最终形成的黑洞的总电荷成正比。对于准极值配置的情况，我们提出了坍缩物质熵的统计模型。这个熵通过与极端黑洞的面积成比例的加性常数扩展了 Bekenstein 的几何熵。