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Exploring the Potential for Detecting Rotational Instabilities in Binary Neutron Star Merger Remnants with Gravitational Wave Detectors
Argyro Sasli, Nikolaos Karnesis, Nikolaos Stergioulas
We explore the potential for detecting rotational instabilities in the post-merger phase of binary neutron star mergers using different network configurations of upgraded and next-…
Terrestrial Very-Long-Baseline Atom Interferometry: Workshop Summary
Sven Abend, Baptiste Allard, Iván Alonso +250
This document presents a summary of the 2023 Terrestrial Very-Long-Baseline Atom Interferometry Workshop hosted by CERN. The workshop brought together experts from around the world…
A Bayesian investigation of the neutron star equation-of-state vs. gravity degeneracy
Bhaskar Biswas, Evangelos Smyrniotis, Ioannis Liodis +1
Despite its elegance, the theory of General Relativity is subject to experimental, observational, and theoretical scrutiny to arrive at tighter constraints or an alternative, more…
A neural-network-based surrogate model for the properties of neutron stars in 4D Einstein-Gauss-Bonnet gravity
Ioannis Liodis, Evaggelos Smirniotis, Nikolaos Stergioulas
Machine learning and artificial neural networks (ANNs) have increasingly become integral to data analysis research in astrophysics due to the growing demand for fast calculations r…
Heavy-tailed likelihoods for robustness against data outliers: Applications to the analysis of gravitational wave data
Argyro Sasli, Nikolaos Karnesis, Nikolaos Stergioulas
In recent years, the field of Gravitational Wave Astronomy has flourished. With the advent of more sophisticated ground-based detectors and space-based observatories, it is anticip…
Differentially rotating scalarized neutron stars with realistic post-merger profile
Kalin V. Staykov, Daniela D. Doneva, Lavinia Heisenberg +2
The merger remnant of a binary neutron star coalescence is initially strongly differentially rotating. Some properties of these remnants can be accurately modeled through building…
Neutron star mass-radius constraints using the high-frequency QPOs of GRB 200415A
H. Sotani, K. D. Kokkotas, N. Stergioulas
Quasi-periodic oscillations (QPOs) observed in a giant flare of a strongly magnetized neutron star (magnetar), are carrying crucial information for extracting the neutron star prop…
Eryn : A multi-purpose sampler for Bayesian inference
Nikolaos Karnesis, Michael L. Katz, Natalia Korsakova +2
In recent years, methods for Bayesian inference have been widely used in many different problems in physics where detection and characterization are necessary. Data analysis in gra…