3 papers
gr-qc2026
The relativistic restricted three-body problem: geometry and motion around tidally perturbed black holes
Takuya Katagiri, Vitor Cardoso
We investigate the geometry of a tidally deformed, rotating black hole and timelike geodesics in its vicinity. Our framework provides a local picture of the structural evolution of…
gr-qc2025
Tidal response beyond vacuum General Relativity with a canonical definition
Takuya Katagiri, Vitor Cardoso, Tact Ikeda +1
Tidal effects on compact objects provide profound theoretical insights into the structure of the field equations, and are wonderful probes of the equation of state of matter, the n…
gr-qc2025
On relativistic dynamical tides: subtleties and calibration
Takuya Katagiri, Kent Yagi, Vitor Cardoso
The response of astrophysical compact objects to external tidal fields carries valuable information on the nature of these objects, on the equation of state of matter, and on the u…