5 papers
Testing general relativity with binary black holes: a study on the sensitivity requirements for future space-based detectors
Tangchao Zhan, Changfu Shi, Shuo Sun +1
We study the sensitivity required for a future space-based detector to search for beyond general relativity effect in gravitational wave detection. To do this, we use the current d…
Constraining the dynamical Chern-Simons gravity with future gravitational wave detectors
Xinyi Che, Xiangyu Lyu, Changfu Shi
Dynamical Chern-Simons gravity, a parity-violating modification of general relativity, is regarded as a low-energy effective theory arising from string theory. Gravitational waves…
Detecting relativistic black hole collisions near a massive black hole
Yirong Fang, Changfu Shi, Jianwei Mei
Relativistic black hole collisions are one of the most dramatic astrophysical events that can be imagined. They could provide the ideal condition for searching for possible new phy…
Contribution from Nonlinear Quasi-normal Modes in GW250114
Yuxin Yang, Changfu Shi, Yi-Ming Hu
We report evidence for nonlinear gravitational effects in the ringdown signal of gravitational wave event GW250114. Using Bayesian inference, we find that the inclusion of a nonlin…
Gravitational waves and cosmic boundary
Changfu Shi, Xinyi Che, Zeyu Huang +2
Space-based gravitational wave detectors have the capability to detect signals from very high redshifts. It is interesting to know if such capability can be used to study the globa…