306 citations · 1.1k across the 36 of their papers we have counts for
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Scalar field excited around a rapidly rotating black hole in Chern-Simons modified gravity
Kohkichi Konno, Rohta Takahashi
We discuss a Chern-Simons (CS) scalar field around a rapidly rotating black hole in dynamical CS modified gravity. The CS correction can be obtained perturbatively by considering t…
Spacetime rotation-induced Landau quantization
Kohkichi Konno, Rohta Takahashi
We investigate non-inertial and gravitational effects on quantum states in electromagnetic fields and present the analytic solution for energy eigenstates for the Schrödinger equat…
Outflows from accreting super-spinars
Cosimo Bambi, Tomohiro Harada, Rohta Takahashi +1
In this paper we continue our study on the accretion process onto super-spinning Kerr objects with no event horizon (super-spinars). We discuss the counterpart of the Bondi accreti…
Accretion process onto super-spinning objects
Cosimo Bambi, Katherine Freese, Tomohiro Harada +2
The accretion process onto spinning objects in Kerr spacetimes is studied with numerical simulations. Our results show that accretion onto compact objects with Kerr parameter (char…