2 papers
gr-qc2026
Vaidya-Type Solutions of Quasitopological Gravity Interacting with Nonlinear Electrodynamics
Valeri P. Frolov, Chul-Moon Yoo, Andrei Zelnikov
We construct Vaidya-type solutions of quasitopological gravity coupled to nonlinear electrodynamics in arbitrary spacetime dimensions. Starting from the corresponding static spheri…
gr-qc2026
Ringdown in Vaidya spacetimes: time-dependent frequencies, Penrose limit and time-domain analyses
Chul-Moon Yoo, Masashi Kimura, Akihiro Ishibashi +1
We examine the possible characterization of ringdown waves in a dynamical Vaidya spacetime using the Penrose limit geometry around the dynamical photon sphere. In the case of a sta…