Leading-order deviations from general relativity in scalar quasinormal modes of rotating black holes are computed numerically up to dimensionless spins of 0.99 in quadratic-curvature scalar-tensor theories.
Electric charge of black holes: Is it really always negligible?
5 Pith papers cite this work, alongside 12 external citations. Polarity classification is still indexing.
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representative citing papers
GW250114 data confirm the remnant black hole ringdown frequencies lie within 30% of Kerr predictions and that the final horizon area is larger than the sum of the progenitors' areas to high credibility.
Including dark matter or modified gravity enhances the effective charge-to-baryonic-mass ratio Q/M_bar by a factor of 10-30 at virial radii, producing structurally linked seed fields of ~10^{-23} G in high-redshift proto-galaxies that could probe the dark sector via distinct radial and mass-dependen
A sparse population of primordial charged compact objects is hypothesized with specific parameters and shown to face severe plasma-screening and neutralization constraints while failing to produce late-time acceleration in the homogeneous FLRW approximation.
Constraints on primordial charged naked singularities (astrons) show charge saturation and plasma screening limit their viability, with homogeneous energy density scaling as a^{-4} providing no late-time acceleration.
citing papers explorer
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Quadratic gravity corrections to scalar QNMs of rapidly rotating black holes
Leading-order deviations from general relativity in scalar quasinormal modes of rotating black holes are computed numerically up to dimensionless spins of 0.99 in quadratic-curvature scalar-tensor theories.
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GW250114: testing Hawking's area law and the Kerr nature of black holes
GW250114 data confirm the remnant black hole ringdown frequencies lie within 30% of Kerr predictions and that the final horizon area is larger than the sum of the progenitors' areas to high credibility.
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Gravitational-Electric Polarization as a Probe of Dark Matter and Modified Gravity
Including dark matter or modified gravity enhances the effective charge-to-baryonic-mass ratio Q/M_bar by a factor of 10-30 at virial radii, producing structurally linked seed fields of ~10^{-23} G in high-redshift proto-galaxies that could probe the dark sector via distinct radial and mass-dependen
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The Case for Astrons
A sparse population of primordial charged compact objects is hypothesized with specific parameters and shown to face severe plasma-screening and neutralization constraints while failing to produce late-time acceleration in the homogeneous FLRW approximation.
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Astrons: Reissner-Nordstr\"om Primordial Naked Singularities
Constraints on primordial charged naked singularities (astrons) show charge saturation and plasma screening limit their viability, with homogeneous energy density scaling as a^{-4} providing no late-time acceleration.