Quintessence and black holes
read the original abstract
We present new static spherically-symmetric exact solutions of Einstein equations with the quintessential matter surrounding a black hole charged or not as well as for the case without the black hole. A condition of additivity and linearity in the energy-momentum tensor is introduced, which allows one to get correct limits to the known solutions for the electromagnetic static field implying the relativistic relation between the energy density and pressure, as well as for the extraordinary case of cosmological constant, i.e. de Sitter space. We classify the horizons, which evidently reveal themselves in the static coordinates, and derive the Gibbons-Hawking temperatures. An example of quintessence with the state parameter w=-2/3 is discussed in detail.
This paper has not been read by Pith yet.
Forward citations
Cited by 10 Pith papers
-
Shadows of quintessence black holes: spherical accretion, photon trajectories, and geodesic observers
Quintessence black holes produce observer-dependent shadow angular sizes, with infalling observers seeing smaller shadows than static ones, yielding stronger equation-of-state constraints from M87* observations.
-
Particle dynamics around an electrically charged Kiselev black hole embedded in quintessence
Derives an electrically charged generalization of the Kiselev black hole metric and studies charged particle orbits, finding prograde periapsis shifts for uncharged particles but possible retrograde shifts for charged ones.
-
Constraints on Schwarzschild Black Hole in a Generalized Dehnen-Type $(1,4,\gamma)$ Dark Matter Halo via the S2 Star Orbit around Sgr A$^\star$
Derives perihelion shift equations for S2 star in generalized Schwarzschild-Dehnen BH-DM spacetime and constrains gamma, rho_s, rs via MCMC on Do et al. and Gillessen et al. datasets.
-
Consistency in the Quantum-Improved Charged Black Holes
Thermodynamic consistency for quantum-improved Reissner-Nordström black holes permits arbitrary radial dependence in both Newton and electromagnetic couplings, while equation-action consistency requires an extra quant...
-
Ringdown waves from hairy black holes
Derives perturbative formulas for quasinormal-mode frequency shifts in hairy black holes expressed directly in terms of anisotropic-fluid equation-of-state parameters via the eikonal correspondence.
-
Anisotropic matter and nonlinear electromagnetics black holes
Establishes a parameter mapping from anisotropic matter black holes to nonlinear electrodynamics black holes, recovering known solutions like dark matter and scalar hair cases and extending to rotating extremal limits.
-
Echoes and quasinormal modes of asymmetric black bounces
Computes quasinormal modes and echoes for black bounce solutions, finding echoes only in certain symmetric horizonless cases and none in asymmetric models that recover Reissner-Nordström externally.
-
The general static spherical perfect fluid solution with EoS parameter w=-1/6
The general static spherical perfect fluid solution with EoS parameter w=-1/6 is obtained analytically via Buchdahl transformation of a known solution.
-
Horizon-scale tests of gravity theories and fundamental physics from the Event Horizon Telescope image of Sagittarius A$^*$
EHT observations of Sgr A* constrain deviations from GR black hole solutions including regular BHs, string-inspired spacetimes, and BH mimickers, with some limits exceeding cosmological bounds.
-
Kiselev Black holes in quantum fluctuation modified gravity
A new general solution in quantum-fluctuation-modified gravity yields Kiselev-type black holes with arbitrary surrounding fluids, plus checks on energy conditions, Hawking temperature, and bounds on the fluctuation parameter.
discussion (0)
Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.