78 citations · 383 across the 13 of their papers we have counts for
8 papers · 1 filter
Odd-parity stability of black holes in Einstein-Aether gravity
Shinji Tsujikawa, Chao Zhang, Xiang Zhao +1
In Einstein-Aether theory, we study the stability of black holes against odd-parity perturbations on a spherically symmetric and static background. For odd-parity modes, there are…
Spherically symmetric static black holes in Einstein-aether theory
Chao Zhang, Xiang Zhao, Kai Lin +3
In this paper, we systematically study spherically symmetric static spacetimes in the framework of Einstein-aether theory, and pay particular attention to the existence of black ho…
No static regular black holes in Einstein-complex-scalar-Gauss-Bonnet gravity
Kai Lin, Shaojun Zhang, Chao Zhang +3
In this brief report, we investigate the existence of 4-dimensional static spherically symmetric black holes (BHs) in the Einstein-complex-scalar-Gauss-Bonnet (EcsGB) gravity with…
Gravitational waves from the quasi-circular inspiral of compact binaries in Einstein-aether theory
Chao Zhang, Xiang Zhao, Anzhong Wang +5
We study gravitational waves emitted by a binary system of non-spinning bodies in a quasi-circular inspiral within the framework of Einstein-aether theory. In particular, we comput…
Constraints of general screened modified gravities from comprehensive analysis of binary pulsars
Xing Zhang, Wen Zhao, Tan Liu +6
Testing gravity by binary pulsars nowadays becomes a key issue. Screened modified gravity is a kind of scalar-tensor theory with screening mechanism in order to satisfy the tight S…
Angular momentum loss for eccentric compact binary in screened modified gravity
Xing Zhang, Wen Zhao, Tan Liu +6
Gravitational wave (GW) observations provide insight into the gravity regime. These observations relies on the comparison of the data to the GWs model, which depends on the orbital…
Evidence of deviations from general relativity in binary pulsars?
Xing Zhang, Wen Zhao, Tan Liu +6
Testing gravitational theories by binary pulsars nowadays becomes a key issue. For the general screened modified gravity (SMG), the post-Keplerian parameters in the neutron star (N…
Waveforms of compact binary inspiral gravitational radiation in screened modified gravity
Tan Liu, Xing Zhang, Wen Zhao +6
Scalar-tensor gravity, with the screening mechanisms to avoid the severe constraints of the fifth force in the Solar System, can be described with a unified theoretical framework,…