Zobrazeno 1 - 10
of 873
pro vyhledávání: '"Liu, Yu‐Xiao"'
Extreme mass-ratio inspirals are crucial sources for future space-based gravitational wave detections. Gravitational waveforms emitted by extreme mass-ratio inspirals are closely related to the orbital dynamics of small celestial objects, which vary
Externí odkaz:
http://arxiv.org/abs/2407.00283
Gravitational echoes can be used to probe the structure of spacetime. In this paper, we investigate the gravitational echoes in different braneworld models in five-dimensional spacetime. We derive the gravitational perturbation equations of these mod
Externí odkaz:
http://arxiv.org/abs/2406.16256
As the fingerprints of black holes, quasinormal modes are closely associated with many properties of black holes. Especially, the ringdown phase of gravitational waveforms from the merger of compact binary components can be described by quasinormal m
Externí odkaz:
http://arxiv.org/abs/2406.15711
In this work, we investigate the quasinormal modes of the Poincar\'e thick brane with a finite extra dimension. Unlike the case with an infinite extra dimension, the gravitational effective potential exhibits three distinct shapes within different ra
Externí odkaz:
http://arxiv.org/abs/2406.03929
We study the polarization modes of gravitational waves in general Einstein-vector theory with an arbitrary constant background vector field under a Minkowski background. We compare these polarization modes with those of other vector-tensor theories a
Externí odkaz:
http://arxiv.org/abs/2405.20577
Recently, Cui et al. [Nature \textbf{621}, 711 (2023)] reported that the jet nozzle of M87* exhibits a precession with a period of approximately 11 years. This finding strongly suggests that M87* is a spinning black hole with a tilted accretion disk.
Externí odkaz:
http://arxiv.org/abs/2401.17689
We study the lensing phenomena of the strong gravity regime of the five-dimensional charged, equally rotating black holes with a cosmological constant, familiarly known as the Cveti\v c-L\"u-Pope black holes. These black holes are characterized by th
Externí odkaz:
http://arxiv.org/abs/2401.06511
Recently, a static spherically symmetric black hole solution was found in gravity nonminimally coupled a background Kalb-Ramond field. The Lorentz symmetry is spontaneously broken when the Kalb-Ramond field has a nonvanishing vacuum expectation value
Externí odkaz:
http://arxiv.org/abs/2312.16605
Publikováno v:
Phys.Rev.D 109 (2024) 4, 044013
In this paper, we establish a unified parameterized framework for analyzing the polarization modes of gravitational waves in the general metric theory (gravity is only described by the metric) and the general scalar-tensor theory (gravity is describe
Externí odkaz:
http://arxiv.org/abs/2310.11336
Boson stars are potential sources of gravitational radiation. To improve our comprehension of these exotic objects, we present the study of geodesics within the space-times of stable, collapsing, and migrating boson stars. We focus on timelike geodes
Externí odkaz:
http://arxiv.org/abs/2310.01178