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pro vyhledávání: '"Sebastian, Saneesh"'
Autor:
Sebastian, Saneesh, Kuriakose, V. C.
In this paper we study the scalar and electromagnetic perturbations of an extended black hole in F(R) gravity. The quasinormal modes in two cases are evaluated and studied their behavior by plotting graphs in each case. To study the quasinormal mode,
Externí odkaz:
http://arxiv.org/abs/1408.0935
Autor:
Sebastian, Saneesh, Kuriakose, V. C.
In this work we have studied the scattering of scalar field around an extended black hole in F(R) gravity using WKB method. We have obtained the wave function in different regions such as near the horizon region, away from horizon and far away from h
Externí odkaz:
http://arxiv.org/abs/1401.3480
Autor:
Sebastian, Saneesh, Kuriakose, V. C.
Publikováno v:
Mod. Phys. Lett. A, Vol.29 No.5 (2014) 1450019
In this paper we study the Dirac quasinormal modes of an uncharged 2 + 1 black hole proposed by Mandal et. al and referred to as MSW black hole in this work. The quasi- normal mode is studied using WKB approximation method. The study shows that the i
Externí odkaz:
http://arxiv.org/abs/1401.3496
Autor:
Sebastian, Saneesh, Kuriakose, V. C.
Publikováno v:
Mod. Phys. Lett. A, Vol. 28, No. 33 (2013) 1350149
We study the thermodynamics and spectroscopy of a 2+1 dimensional black hole pro- posed by Mandal et. al1 . We put the background space time in Kruskal like co-ordinate and find period with respect to Euclidean time. Different thermodynamic quantitie
Externí odkaz:
http://arxiv.org/abs/1309.0351
Autor:
Sebastian, Saneesh, Kuriakose, V. C.
In the usual derivation of Einstein's equation from action, the surface terms are neglected. Hawking \cite{hw} gave a derivation of the gravitational Hamiltonian keeping all surface terms. Using such surface terms Easson et.al.\cite{ea} showed that F
Externí odkaz:
http://arxiv.org/abs/1104.1887
Autor:
Sebastian, Saneesh1 saneeshphys@gmail.com, Kuriakose, V.1 vck@cusat.ac.in
Publikováno v:
International Journal of Theoretical Physics. Sep2015, Vol. 54 Issue 9, p3162-3168. 7p.
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