Anisotropic generalization of well-known solutions describing relativistic self-gravitating fluid systems: an algorithm
| Autor: | Ranjan Sharma, F. C. Ragel, Shyam Das, S. Thirukkanesh |
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| Rok vydání: | 2018 |
| Předmět: |
Physics
Physics and Astronomy (miscellaneous) 010308 nuclear & particles physics Generalization Isotropy FOS: Physical sciences lcsh:Astrophysics Radius Compact star 01 natural sciences Method of undetermined coefficients General Physics (physics.gen-ph) Physics - General Physics lcsh:QB460-466 0103 physical sciences Einstein field equations lcsh:QC770-798 lcsh:Nuclear and particle physics. Atomic energy. Radioactivity SPHERES Anisotropy 010303 astronomy & astrophysics Engineering (miscellaneous) Algorithm |
| Zdroj: | European Physical Journal C European Physical Journal C: Particles and Fields, Vol 78, Iss 1, Pp 1-9 (2018) |
| ISSN: | 1434-6052 1434-6044 |
| DOI: | 10.1140/epjc/s10052-018-5526-5 |
| Popis: | We present an algorithm to generalize a plethora of well-known solutions to Einstein field equations describing spherically symmetric relativistic fluid spheres by relaxing the pressure isotropy condition on the system. By suitably fixing the model parameters in our formulation, we generate closed-form solutions which may be treated as anisotropic generalization of a large class of solutions describing isotropic fluid spheres. From the resultant solutions, a particular solution is taken up to show its physical acceptability. Making use of the current estimate of mass and radius of a known pulsar, the effects of anisotropic stress on the gross physical behaviour of a relativistic compact star is also highlighted. To appear in Eur. Phys. J. C |
| Databáze: | OpenAIRE |
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