9 citations · 9 across the 9 of their papers we have counts for
9 papers
Gravitational Lensing of Gravitational Waves: Towards a Higher-order Geometric-optics Approach
Zhao Li, Shaoqi Hou, Wen Zhao
In this work, we study the gravitational lensing of gravitational waves (GWs) by extending the geometric-optics approximation to higher order. With the help of the Newman-Penrose f…
Mock Catalogs of Strongly Lensed Gravitational Waves via a Halo Model Approach with Space-borne Detectors
Mingqi Sun, Kai Liao, Youkai Li +6
Future space-borne gravitational-wave (GW) detectors, such as LISA and DECIGO, are expected to detect a large number of GW events, a fraction of which may be strongly lensed by int…
Shaving off soft hairs and the black hole image memory effect
Shaoqi Hou, Zong-Hong Zhu
Soft hairs of black holes are the Noether charges associated with the generalized Bondi-Metzner-Sachs symmetries. In this work, the images of soft-haired Kerr black holes are studi…
Gravitational lensing of gravitational waves: universal characteristics of strongly lensed memory waveforms
Ruanjing Zhang, Zhi-Chao Zhao, Shaoqi Hou +3
In this work, the strong lensing effect of the memory signal was considered. In the geometric optics limit, the lensed memory signal becomes oscillatory, while the unlensed is basi…
The general property of the tensor gravitational memory effect in theories of gravity
Shaoqi Hou
In this work, it is shown that based on the linear analysis, as long as a theory of gravity is diffeomorphism invariant and possesses the tensor degrees of freedom propagating at a…
Space-borne Interferometers to Detect Thousands of Memory Signals Emitted by Stellar-mass Binary Black Holes
Shaoqi Hou, Zhi-Chao Zhao, Zhoujian Cao +1
The gravitational memory effect manifests gravitational nonlinearity, degenerate vacua, and asymptotic symmetries; its detection is considered challenging. We propose using the spa…
Finitely supertranslated Schwarzschild black hole and its perturbations
Shaoqi Hou, Kai Lin, Zong-Hong Zhu
A finitely supertranslated Schwarzschild black hole possesses nontrivial super-Lorentz charges compared with the standard one. This may impact the quasinormal modes of the black ho…
Nontensorial gravitational wave polarizations from the tensorial degrees of freedom: I. Linearized Lorentz-violating theory of gravity with s tensor
Shaoqi Hou, Xi-Long Fan, Tao Zhu +1
General relativity predicts the existence of only two tensorial gravitational wave polarizations, while a generic metric theories of gravity can possess up to four additional polar…
Gravitational Radiation from Eccentric Binary Black Hole System in Dynamical Chern-Simons Gravity
Zhao Li, Jin Qiao, Tan Liu +4
Dynamical Chern-Simons (DCS) gravity, a typical parity-violating gravitational theory, modifies both the generation and propagation of gravitational waves from general relativity (…