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- W4286579082 abstract "We consider a family of 4-dimensional black hole solutions from Dehnen et al. ( Grav. Cosmol. 9:153, arXiv: gr-qc/0211049, 2003) governed by natural number $q= 1, 2, 3 , dots$, which appear in the model with anisotropic fluid and the equations of state: $p_r = -rho (2q-1)^{-1}$, $p_t = - p_r$, where $p_r$ and $p_t$ are pressures in radial and transverse directions, respectively, and $rho > 0$ is the density. These equations of state obey weak, strong and dominant energy conditions. For $q = 1$ the metric of the solution coincides with that of the Reissner-Nordstrom one. The global structure of solutions is outlined, giving rise to Carter-Penrose diagram of Reissner-Nordstrom or Schwarzschild types for odd $q = 2k + 1$ or even $q = 2k$, respectively. Certain physical parameters corresponding to BH solutions (gravitational mass, PPN parameters, Hawking temperature and entropy) are calculated. We obtain and analyse the quasinormal modes for a test massless scalar field in the eikonal approximation. For limiting case $q = + infty$, they coincide with the well-known results for the Schwarzschild solution. We show that the Hod conjecture which connect the Hawking temperature and the damping rate is obeyed for all $q geq 2$ and all (allowed) values of parameters." @default.
- W4286579082 created "2022-07-22" @default.
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- W4286579082 date "2022-01-09" @default.
- W4286579082 modified "2023-09-24" @default.
- W4286579082 title "On quasinormal modes in 4D black hole solutions in the model with anisotropic fluid" @default.
- W4286579082 doi "https://doi.org/10.48550/arxiv.2201.03104" @default.
- W4286579082 hasPublicationYear "2022" @default.
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