The Hawking temperature in the context of dark energy for Kerr–Newman and Kerr–Newman–AdS backgrounds
| Autor: | Bivash Majumder, Goutam Manna |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
High Energy Physics - Theory
Physics and Astronomy (miscellaneous) Scalar (mathematics) FOS: Physical sciences lcsh:Astrophysics Context (language use) General Relativity and Quantum Cosmology (gr-qc) Type (model theory) Computer Science::Digital Libraries 01 natural sciences General Relativity and Quantum Cosmology Gravitation High Energy Physics::Theory lcsh:QB460-466 0103 physical sciences lcsh:Nuclear and particle physics. Atomic energy. Radioactivity 010306 general physics Engineering (miscellaneous) Mathematical physics Physics 010308 nuclear & particles physics Equations of motion Black hole High Energy Physics - Theory (hep-th) Dark energy lcsh:QC770-798 Scalar field |
| Zdroj: | European Physical Journal C: Particles and Fields, Vol 79, Iss 7, Pp 1-8 (2019) European Physical Journal |
| ISSN: | 1434-6052 1434-6044 |
| Popis: | We show that the Hawking temperature is modified in the presence of dark energy in an emergent gravity scenario for Kerr-Newman(KN) and Kerr-Newman-AdS(KNAdS) background metrics. The emergent gravity metric is not conformally equivalent to the gravitational metric. We calculate the Hawking temperatures for these emergent gravity metrics along $\theta=0$. Also we show that the emergent black hole metrics are satisfying Einstein's equations for large $r$ and $\theta=0$. Our analysis is done in the context of dark energy in an emergent gravity scenario having $k-$essence scalar fields $\phi$ with a Dirac-Born-Infeld type lagrangian. In KN and KNAdS background, the scalar field $\phi(r,t)=\phi_{1}(r)+\phi_{2}(t)$ satisfies the emergent gravity equations of motion at $r\rightarrow\infty$ for $\theta=0$. Comment: 8pages, Accepted. arXiv admin note: text overlap with arXiv:1303.2999 |
| Databáze: | OpenAIRE |
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