26 citations · 77 across the 4 of their papers we have counts for
7 papers
Fast Rotating Neutron Stars: Oscillations and Instabilities
Christian J. Krüger, Kostas D. Kokkotas, Praveen Manoharan +1
In this review article, we present the main results from our most recent research concerning the oscillations of fast rotating neutron stars. We derive a set of time evolution equa…
Bayesian Inverse Problem of Rotating Neutron Stars
Sebastian H. Völkel, Christian J. Krüger, Kostas D. Kokkotas
In this work we provide a framework that connects the co-rotating and counter rotating -mode frequencies of rotating neutron stars with their stellar structure. The accurate com…
EHT tests of the strong-field regime of General Relativity
Sebastian H. Völkel, Enrico Barausse, Nicola Franchini +1
Following up on a recent analysis by Psaltis et al. [Phys. Rev. Lett. 125, 141104 (2020)], we show that the observed shadow size of M87 can be used to unambiguously and robustl…
Bayesian Metric Reconstruction with Gravitational Wave Observations
Sebastian H. Völkel, Enrico Barausse
Theories of gravity extending or modifying general relativity typically allow for black hole solutions different from the Schwarzschild/Kerr geometries. Electromagnetic observation…
Spectral Lines of Quantized, Spinning Black Holes and their Astrophysical Relevance
Andrew Coates, Sebastian H. Völkel, Kostas D. Kokkotas
In this Letter, we study black hole area quantization in the context of gravitational wave physics. It was recently argued that black hole area quantization could be a mechanism to…
On the Inverse Spectrum Problem of Neutron Stars
Sebastian H. Völkel, Kostas D. Kokkotas
In this work we revisit axial perturbations of spherically symmetric and non-rotating neutron stars. Although it has been object of many studies, it still offers new insights that…