A new relativistic linear perturbation formalism is derived for polar modes in gravitationally coupled two-fluid neutron stars, with numerical computation of representative f- and p-mode spectra classified by dominant fluid character.
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A reduction scheme transforms arbitrary N-term scalar and matrix recurrence relations from black hole perturbations in modified gravity into three-term relations solvable by continued fractions.
Black hole spacetimes in dark matter spikes are solved analytically from TOV equations; ringdown quasinormal frequencies differ from Schwarzschild by up to order 10^{-4}.
Quasinormal modes are eigenmodes of dissipative gravitational systems whose spectra encode near-equilibrium transport coefficients in dual quantum field theories and enable tests of general relativity through gravitational wave observations.
citing papers explorer
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Non-radial pulsations of gravitationally coupled two-fluid neutron stars in general relativity
A new relativistic linear perturbation formalism is derived for polar modes in gravitationally coupled two-fluid neutron stars, with numerical computation of representative f- and p-mode spectra classified by dominant fluid character.
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Beyond Three Terms: Continued Fractions for Rotating Black Holes in Modified Gravity
A reduction scheme transforms arbitrary N-term scalar and matrix recurrence relations from black hole perturbations in modified gravity into three-term relations solvable by continued fractions.
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Black holes surrounded by dark matter spike: Spacetime metrics and gravitational wave ringdown waveforms
Black hole spacetimes in dark matter spikes are solved analytically from TOV equations; ringdown quasinormal frequencies differ from Schwarzschild by up to order 10^{-4}.
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Quasinormal modes of black holes and black branes
Quasinormal modes are eigenmodes of dissipative gravitational systems whose spectra encode near-equilibrium transport coefficients in dual quantum field theories and enable tests of general relativity through gravitational wave observations.