학술논문

Kinematic self-similar solutions of locally rotationally symmetric spacetimes
Document Type
article
Source
Brazilian Journal of Physics. June 2010 40(2)
Subject
Locally rotationally symmetric
Self-similarity
Language
English
ISSN
0103-9733
Abstract
This paper contains locally rotationally symmetric kinematic self-similar perfect fluid and dust solutions. We consider three families of metrics which admit kinematic self-similar vectors of the first, second, zeroth and infinite kinds, not only for the tilted fluid case but also for the parallel and orthogonal cases. It is found that the orthogonal case gives contradiction both in perfect fluid and dust cases for all the three metrics while the tilted case reduces to the parallel case in both perfect fluid and dust cases for the second metric. The remaining cases give self-similar solutions of different kinds. We obtain a total of seventeen independent solutions out of which two are vacuum. The third metric yields contradiction in all the cases.