Parameter estimation for Einstein-dilaton-Gauss-Bonnet gravity with ringdown signals

Understand

Future space-based gravitational-wave detectors will detect gravitational waves with high sensitivity in the millihertz frequency band, which provides more opportunities to test theories of gravity than ground-based ones.

• The study of quasinormal modes (QNMs) and their application to testing gravity theories have been an important aspect in the field of gravitational physics.
• In this study, we investigate the capability of future space-based gravitational wave detectors such as LISA, TaiJi, and TianQin to constrain the dimensionless deviating parameter for Einstein-dilaton-Gauss-Bonnet (EdGB) gravity with ringdown signals from the merger of binary black holes.
• The ringdown signal is modeled by the two strongest QNMs in EdGB gravity.