Abstract

A self-consistent exact solution for a Reissner–Nordström black-and-white hole formed as a result of accretion has been considered. Prior to the formation of a black-and-white hole, there is a bulk charged sphere at the center of the system. The occurrence of a turning (bounce) point in the newly formed black-and-white hole is investigated. The occurrence of a turning point was investigated by an example of solution for the accretion of a neutral spherical dust shell. The model equations are written with allowance for the cosmological term Λ. Within the model under consideration, both the black-and-white hole and its turning point are formed in the already existing Universe; therefore, the black-and-white hole in this model is not “eternal.”

中文翻译：

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Reissner-Nordström 黑洞动态解中出现转折点

摘要

已经考虑了由吸积形成的 Reissner-Nordström 黑白洞的自洽精确解。在形成黑白洞之前，系统中心有一个带电的大球体。研究了在新形成的黑白洞中出现转折（反弹）点。通过中性球形尘埃壳的吸积的解决方案的例子来研究转折点的发生。模型方程的编写考虑到了宇宙学术语 Λ。在所考虑的模型中，黑白洞及其转折点都是在已经存在的宇宙中形成的；因此，这个模型中的黑白洞并不是“永恒的”。