期刊
CLASSICAL AND QUANTUM GRAVITY
卷 28, 期 10, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0264-9381/28/10/105004
关键词
-
类别
资金
- Ministerio de Educacion y Ciencia [FIS2007-63034]
- Generalitat de Catalunya [2009SGR-00417]
Based on previous works by Bonanno and Reuter (2000 Phys. Rev. D 62 043008, 2006 Phys. Rev. D 73 083005) we postulate a renormalization group-improved solution for the exterior of a collapsing object that emits radiation. We show that, contrary to Vaidya's radiating solution, backscattered radiation is bounded in the eikonal approximation, so that this solution provides us with a more consistent description of the last stages of collapse. We also show its limitations as the exterior of collapsing stars endowed with very high negative pressures. Finally, we are able to describe the profile of the luminosity of a collapsing object as seen by a far away observer in situations where Vaidya's solution cannot deliver an admissible answer. We illustrate this with models for the collapse of scalar fields where such a profile had not been possible to obtain so far.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据