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Quintessence and black holes
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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.
Forward citations
Cited by 25 Pith papers
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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.
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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.
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Junction Conditions, Radial Stability, Thermodynamics, Optical Geometry and Appearance of Polymer-Quintessence Thin-Shell Wormholes
Keeping the nonareal polymer angular sector in a polymer-quintessence thin-shell wormhole adds a momentum-flux term that reshapes stability, thermodynamics, and cross-throat image branches.
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Constraints on Schwarzschild Black Hole in a Generalized Dehnen-Type $(1,4,\gamma)$ Dark Matter Halo via the S2 Star Orbit around Sgr A$^\star$
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Consistency in the Quantum-Improved Charged Black Holes
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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.
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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.
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Constructing regular black holes from multi-polytropic equations of state
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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.
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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.
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Effects of quantum corrections on the criticality and efficiency of black holes surrounded by a perfect fluid
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Regular Black Hole Formation and Gamma-Ray Burst from Matter Conversion
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Chaotic behaviors of particles around the black hole with an anisotropic matter immersed in a magnetic field
Exact black hole solution with anisotropic matter and magnetic field shows the matter parameter reduces local chaos (Lyapunov exponent) while the magnetic field drives qualitative shifts in global chaos (Poincaré sections).
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Periodic Timelike Motion and Gravitational Wave Signatures around a Magnetically Charged Black Hole Surrounded by Quintessence
Quintessence shifts orbital radii, turning points, and zoom-whirl parameters for timelike geodesics around a magnetically charged black hole, producing burst-like gravitational waveforms whose phase, timing, and milli...
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Kiselev black hole and the ultra-slow evaporating behavior
Lowering the quintessence state parameter w_q in Kiselev black holes produces ultra-slow evaporation distinct from PFDM and Horndeski cases, offering a possible constraint on w_q.
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Slowly rotating traversable wormholes supported by radially varying string-fluid matter: From regular geometries to photon trajectories
Derives regular, horizon-free, asymptotically flat spacetimes for slowly rotating wormholes supported by radially varying string fluids and analyzes photon trajectories and circular orbits.
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Formation of Bound States in Quintessence Alternative Theories
Bound states of scalar fields exist outside quintessence-dressed AdS black holes for sufficiently large |w| or angular momentum, and quintessence alters the Hawking temperature so that large black holes radiate less.
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Astrophysical properties of static black holes embedded in a Dehnen type dark matter halo with the presence of quintessential field
Adding a Dehnen-type dark matter halo and a quintessence field to a Schwarzschild black hole enlarges its shadow and lowers the frequency and damping rate of its quasinormal modes.
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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.
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Perturbations of Black Holes Surrounded by Anisotropic Matter Field
For a black hole with anisotropic matter hair, quasinormal mode frequencies shift monotonically with the matter strength K, and the shift also appears in shadow radius and grey-body factors.
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Black holes in Einstein-Gauss-Bonnet gravity with a background of modified Chaplygin gas
The authors obtain a static 5D Einstein-Gauss-Bonnet black hole solution surrounded by modified Chaplygin gas and analyze its thermodynamics, scalar tunneling, and perturbative stability.
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ModMax black hole surrounded by perfect-fluid dark matter in Lorentz-violating Kalb-Ramond gravity
Derives static spherically symmetric black hole metric combining ModMax electrodynamics, Lorentz-violating Kalb-Ramond gravity, and perfect-fluid dark matter, then analyzes thermodynamic quantities and stability.
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The Kiselev black hole is neither perfect fluid, nor is it quintessence
The Kiselev black hole's stress-energy is anisotropic, so it is neither a perfect fluid nor standard quintessence, despite a large literature saying otherwise.
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