3 papers
astro-ph.CO2026
Illuminating the dark universe in the multi-messenger era
Philippe Brax, Anne-Christine Davis, Md Riajul Haque +8
The precision era of multi-messenger astronomy, together with modern astrophysical, cosmological, and gravitational wave observations, increasingly points toward the existence of a…
gr-qc2025
Common Envelope Evolution of Ultralight Boson Clouds
Ao Guo, Qi-Yan Zhang, Huan Yang +1
Ultralight bosons can be excited around spinning black holes via black hole superradiance. These boson clouds may play an important role in the orbital evolution of binary black ho…
hep-th2024
Scalar-Gauss-Bonnet gravity: Infrared causality and detectability of GW observations
Wen-Kai Nie, Lin-Tao Tan, Jun Zhang +1
We investigate time delays of wave scatterings around black hole backgrounds in scalar-tensor effective field theories of gravity. The scalar-Gauss-Bonnet (sGB) couplings, being co…