We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
The generalized Vaidya spacetime with polytropic equation of state.
- Authors
Vertogradov, Vitalii
- Abstract
The process of the gravitational collapse might lead not only to a black hole but also to naked singularity formation. In this paper, we consider the generalized Vaidya spacetime with polytropic and generalized polytropic equations of state. We solve the Einstein and Einstein–Maxwell equations to obtain the explicit form of a mass function. We consider the limiting cases of solutions and find out, that generalized Vaidya spacetime might behave like Vaidya–de Sitter and Bonnor–Vaidya–de sitter solutions. Moreover, we explicitly show, that the part of solution, which depends on the polytropic index, is similar to cosmological fields surrounding both Vaidya and Bonnor–Vaidya black holes. The process of the gravitational collapse has been then considered. We have found out that the conditions of the naked singularity formation don't depend on the polytropic index.
- Subjects
EINSTEIN, Albert, 1879-1955; EQUATIONS of state; SPACETIME; EINSTEIN-Maxwell equations; BLACK holes; GRAVITATIONAL collapse
- Publication
General Relativity & Gravitation, 2024, Vol 56, Issue 5, p1
- ISSN
0001-7701
- Publication type
Article
- DOI
10.1007/s10714-024-03244-6