Variable relation between string densities
| Autor: | S.P. Hatkar, Shivdas D. Katore |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Physics
010308 nuclear & particles physics General relativity Space time Scalar (mathematics) Isotropy Astronomy and Astrophysics 01 natural sciences Cosmic string General Relativity and Quantum Cosmology Space and Planetary Science 0103 physical sciences Field equation 010303 astronomy & astrophysics Instrumentation Accelerating universe Mathematical physics |
| Zdroj: | New Astronomy. 85:101562 |
| ISSN: | 1384-1076 |
| DOI: | 10.1016/j.newast.2020.101562 |
| Popis: | In this work we have proposed a variable relation between densities of cosmic string. Bianchi type II,VIII and IX space time is explored in the context of general relativity. The field equations are solved by assuming that the shear scalar is proportional to expansion scalar. Three different cases are investigated. It is observed that strings contribute significantly in isotropy and acceleration of the universe. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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