9 papers · 1 filter
Extreme mass-ratio inspirals around rotating accelerating black holes
Xin-Dong Du, Tao Zhou, Wei Xiong +2
Extreme mass-ratio inspirals (EMRIs) can magnify small departures from Kerr dynamics into appreciable gravitational-wave phase shifts accumulated over many orbital cycles. We explo…
Probing near-zone magnetic fields with extreme mass-ratio inspirals
Jin-Lu Hu, Xin-Dong Du, Peng-Cheng Li +1
We investigate whether weak near-zone magnetic fields can leave observable imprints on extreme-mass-ratio inspiral (EMRI) waveforms. The central massive black hole is modeled by th…
Quasinormal mode/grey-body factor correspondence for Kerr black holes
Zun-Xian Huang, Peng-Cheng Li
We revisit the quasinormal-mode/greybody factor correspondence for Kerr black holes in the eikonal limit and develop a systematic WKB-based formulation by recasting the radial Teuk…
Constraint on massive vector field with extreme-mass-ratio inspirals around a slowly rotating black hole
Tieguang Zi, Peng-Cheng Li, Bao-Min Gu +1
We study the influence of a massive vector (Proca) field on the energy fluxes from extreme-mass-ratio inspirals (EMRIs) around a slowly rotating Kerr black hole. The secondary comp…
Detection of a Higher Harmonic Quasi-normal Mode in the Ringdown Signal of GW231123
Hai-Tian Wang, Shao-Peng Tang, Peng-Cheng Li +1
The ringdown phase of a gravitational wave signal from a binary black hole merger offers a unique laboratory for testing general relativity in the strong-field regime and probing t…
Stable massless scalar polarization of f(R) gravity
Xin-Dong Du, Peng-Cheng Li
Polarization is a prominent feature of gravitational wave observations and can be used to distinguish between different modified gravity theories. Compared to General Relativity, f…
Quasinormal modes of accelerating spacetime
Tao Zhou, Peng-Cheng Li
We calculate the exact values of the quasinormal frequencies for massless perturbations with spin moving in pure accelerating spacetime. We use two different methods to tr…
Gravitational waves from extreme-mass-ratio inspirals in the semiclassical gravity spacetime
Tieguang Zi, Peng-Cheng Li
More recently, Fernandes \cite{Fernandes:2023vux} discovered analytic stationary and axially-symmetric black hole solutions within semiclassical gravity, driven by the trace anomal…
Detecting the tidal heating with the generic extreme-mass-ratio inspirals
Tieguang Zi, Chang-Qing Ye, Peng-Cheng Li
The horizon of a classical black hole (BH), functioning as a one-way membrane, plays a vital role in the dynamic evolution of binary BHs, capable of absorbing fluxes entirely. Tida…