401 citations · 529 across the 14 of their papers we have counts for
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Spectroscopy of analogue black holes using simulation-based inference
Leonardo Solidoro, Sebastian H. Völkel, Silke Weinfurtner
The emergence of precision gravity simulators in quantum and fluid systems is opening new avenues for probing curved-spacetime physics and black-hole phenomenology under controlled…
Confronting eikonal and post-Kerr methods with numerical evolution of scalar field perturbations in spacetimes beyond Kerr
Ciro De Simone, Sebastian H. Völkel, Kostas D. Kokkotas +2
The accurate computation of quasinormal modes from rotating black holes beyond general relativity is crucial for testing fundamental physics with gravitational waves. In this study…
Combining simulation-based inference and universal relations for precise and accurate neutron star science
Christian J. Krüger, Sebastian H. Völkel
In this work, we propose a novel approach for identifying, constructing, and validating precise and accurate universal relations for neutron star bulk quantities. A central element…
Quasinormal modes of rotating black holes beyond general relativity in the WKB approximation
Ruijing Tang, Nicola Franchini, Sebastian H. Völkel +1
Exploring gravitational theories beyond general relativity (GR) with black hole (BH) spectroscopy requires accurate and flexible methods for computing their quasinormal mode (QNM)…
Black hole spectroscopy of collapsing and merging neutron stars
Oliver Steppohn, Sebastian H. Völkel, Tim Dietrich
Black hole spectroscopy is an important pillar when studying gravitational waves from black holes and enables tests of general relativity. Most of the gravitational-wave signals ob…
Quantifying Systematic Biases in Black Hole Spectroscopy
Sebastian H. Völkel, Arnab Dhani
How long after the merger of two black holes can one rely on linear perturbation theory, and how many quasinormal modes are in the ringdown? Such questions suggest that black hole…
Bayesian analysis of analog gravity systems with the Rezzolla-Zhidenko metric
Saulo Albuquerque, Sebastian H. Völkel
Analog gravity systems have the unique opportunity to probe theoretical aspects of black hole physics in a controlled laboratory environment that one cannot easily observe for astr…
Systematic Biases in Estimating the Properties of Black Holes Due to Inaccurate Gravitational-Wave Models
Arnab Dhani, Sebastian H. Völkel, Alessandra Buonanno +5
Gravitational-wave (GW) observations of binary black-hole (BBH) coalescences are expected to address outstanding questions in astrophysics, cosmology, and fundamental physics. Real…
Testing General Relativity with Black Hole Quasi-Normal Modes
Nicola Franchini, Sebastian H. Völkel
The purpose of this chapter is to provide an overview of the exciting field of black hole quasi-normal modes and its capabilities to test general relativity in the 21st century. Af…
Exact theory for the Rezzolla-Zhidenko metric and self-consistent calculation of quasinormal modes
Arthur G. Suvorov, Sebastian H. Völkel
A covariant, scalar-tensor gravity is constructed such that the static, spherically symmetric Rezzolla-Zhidenko metric is an exact solution to the theory. The equations describing…
Prospects for Fundamental Physics with LISA
Enrico Barausse, Emanuele Berti, Thomas Hertog +318
In this paper, which is of programmatic rather than quantitative nature, we aim to further delineate and sharpen the future potential of the LISA mission in the area of fundamental…
Scalar Fields and Parametrized Spherically Symmetric Black Holes: Can one hear the shape of space-time?
Sebastian H. Völkel, Kostas D. Kokkotas
In this work we study whether parametrized spherically symmetric black hole solutions in metric theories of gravity can appear to be isospectral when studying perturbations. From a…
The Inverse Problem for Hawking Radiation
Sebastian H. Völkel, Roman Konoplya, Kostas D. Kokkotas
In this work we study the inverse problem related to the emission of Hawking radiation. We first show how the knowledge of greybody factors of different angular contributions c…