24 citations · 35 across the 5 of their papers we have counts for
5 papers
Dynamical Tidal Response of Non-rotating Black Holes: Connecting the MST Formalism and Worldline EFT
Hajime Kobayashi, Shinji Mukohyama, Naritaka Oshita +2
The response of a black hole (BH) to tidal forces encodes key information about the underlying gravitational theory and affects the waveform of gravitational waves emitted during b…
Parametrized Tidal Dissipation Numbers of Non-rotating Black Holes
Hajime Kobayashi, Shinji Mukohyama, Naritaka Oshita +2
A set of tidal dissipation numbers (TDNs) quantifies the absorption of the tidal force exerted by a companion during an inspiralling phase of a binary compact object. This tidal di…
Quasinormal Modes from EFT of Black Hole Perturbations in Vector-Tensor Gravity
Shogo Tomizuka, Hajime Kobayashi, Naritaka Oshita +2
We study the dynamics of odd-parity perturbations on a static and spherically symmetric black hole background with a timelike vector field based on the effective field theory (EFT)…
Inverting no-hair theorems: How requiring General Relativity solutions restricts scalar-tensor theories
Hajime Kobayashi, Shinji Mukohyama, Johannes Noller +3
Black hole solutions in general scalar-tensor theories are known to permit hair, i.e. non-trivial scalar profiles and/or metric solutions different from the ones of General Relativ…
Tidal Love Numbers from EFT of Black Hole Perturbations with Timelike Scalar Profile
Chams Gharib Ali Barura, Hajime Kobayashi, Shinji Mukohyama +3
We study static tidal Love numbers (TLNs) of a static and spherically symmetric black hole for odd-parity metric perturbations. We describe black hole perturbations using the effec…