Accretion of phantom scalar field into a black hole

被引：37

作者：

Gonzalez, J. A. ^{[1
]}

Guzman, F. S. ^{[1
]}

机构：

[1] Univ Michoacana, Inst Fis & Matemat, Morelia 58040, Michoacan, Mexico

来源：

PHYSICAL REVIEW D | 2009年 / 79卷 / 12期

基金：

芬兰科学院;

关键词：

D O I：

10.1103/PhysRevD.79.121501

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using numerical methods we present the first full nonlinear study of a phantom scalar field accreted into a black hole. We study different initial configurations and find that the accretion of the field into the black hole can reduce its area down to 50 percent within time scales of the order of few masses of the initial horizon. The analysis includes the cases where the total energy of the space-time is positive or negative. The confirmation of this effect in full nonlinear general relativity implies that the accretion of exotic matter could be considered an evaporation process. We speculate that if this sort of exotic matter has some cosmological significance, this black hole area reduction process might have played a crucial role in black hole formation and population.

引用

页数：5

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