Anisotropic cosmological solutions to the y (R) F2 gravity
| Autor: | Özcan Sert, Muzaffer Adak |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Electromagnetic field
Physics Nuclear and High Energy Physics Gravity (chemistry) Isotropy General Physics and Astronomy Astronomy and Astrophysics magnetic field General Relativity and Quantum Cosmology Magnetic field inflation gravity cosmology Classical mechanics Variational principle Electric field Acceleration of universe modified gravity Field equation Anisotropy Astrophysics - Cosmology and Nongalactic Astrophysics |
| Popis: | We investigate anisotropic cosmological solutions of the theory with non-minimal couplings between electromagnetic fields and gravity in $Y(R) F^2$ form. After we derive the field equations by the variational principle, we look for spatially flat cosmological solutions with magnetic fields or electric fields. Then we give exact anisotropic solutions by assuming the hyperbolic expansion functions. We observe that the solutions approach to the isotropic case in late-times. Comment: 16 pages, 5 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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