87 citations · 110 across the 8 of their papers we have counts for
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WKB approximation for quasi-bound states and trapped modes
R. A. Konoplya, Z. Stuchlík, A. Zhidenko
We develop a largely automatic semi-analytic method for calculating weakly damped quasi-bound states and trapped modes supported by a local minimum of an effective potential. The r…
Quasinormal Modes and Hawking Radiation of Black Holes with Primary Scalar Hair
Roman Konoplya, Oleksandr Stashko, Zdeněk Stuchlík
Recently, a new family of asymptotically flat black-hole solutions endowed with primary scalar hair has been discovered in beyond-Horndeski gravity. We study in detail the quasinor…
Shadows of naked singularities and superspinars related to the revisited Kerr-de Sitter spacetimes
Daniel Charbulák, Zdeněk Stuchlík
We construct shadows of superspinars described by the revisited Kerr-de Sitter (rKdS) naked singularity (NS) spacetimes and compare them with those of the standard KdSNS spacetimes…