Generalized junction conditions for collapsing models

7th International Conference on Gravitation and Cosmology

Govender, G.^1 ; Maharaj, S.D.^1 ; Govender, M.^1

Astrophysics and Cosmology Research Unit, School of Mathematics, Statistics and Computer Science, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa^1

关键词: Relativistic stars;    Spacetime;    Super position;    Two-fluid;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/484/1/012014/pdf
DOI  :  10.1088/1742-6596/484/1/012014

来源: IOP

【 摘 要 】

We have constructed the general junction conditions on the surface of a dissipating relativistic star. The stellar exterior is a spacetime described by the generalised Vaidya metric and a two-fluid energy-momentum tensor, and therefore, defines the local atmosphere, which must be a super-position of standard null radiation and a general null fluid. We have highlighted briefly that our result will effect the physics of the dissipation at the stellar boundary.