Publications (110)
Imprints of superfluidity on magneto-elastic QPOs of SGRs
Michael Gabler, Pablo Cerdá-Durán, Nikolaos Stergioulas +2
Equilibrium sequences of differentially rotating stars with post-merger-like rotational profiles
Panagiotis Iosif, Nikolaos Stergioulas
Analytic models of the spectral properties of gravitational waves from neutron star merger remnants
Theodoros Soultanis, Andreas Bauswein, Nikolaos Stergioulas
Gravitational Waves from Compact Sources
Kostas D. Kokkotas, Nikolaos Stergioulas
A neural-network-based surrogate model for the properties of neutron stars in 4D Einstein-Gauss-Bonnet gravity
Ioannis Liodis, Evaggelos Smirniotis, Nikolaos Stergioulas
A Parametrized Equation of State for Neutron Star Matter with Continuous Sound Speed
Michael F. O'Boyle, Charalampos Markakis, Nikolaos Stergioulas +1
Deep Residual Networks for Gravitational Wave Detection
Paraskevi Nousi, Alexandra E. Koloniari, Nikolaos Passalis +3
Neutron-star radius constraints from GW170817 and future detections
Andreas Bauswein, Oliver Just, Hans-Thomas Janka +1
On the relevance of the r-mode instability for accreting neutron stars and white dwarfs
Nils Andersson, Kostas D. Kokkotas, Nikolaos Stergioulas
Autoencoder-driven Spiral Representation Learning for Gravitational Wave Surrogate Modelling
Paraskevi Nousi, Styliani-Christina Fragkouli, Nikolaos Passalis +5
On the accuracy of the IWM-CFC approximation in differentially rotating relativistic stars
Panagiotis Iosif, Nikolaos Stergioulas
Nonlinear dynamics of oscillating neutron stars in scalar-tensor gravity
Raissa F. P. Mendes, Néstor Ortiz, Nikolaos Stergioulas
The Laser Interferometer Space Antenna mission in Greece White Paper
Nikolaos Karnesis, Nikolaos Stergioulas, Georgios Pappas +18
Snowmass 2021 Cosmic Frontier White Paper: The Dense Matter Equation of State and QCD Phase Transitions
Slavko Bogdanov, Emmanuel Fonseca, Rahul Kashyap +26
New Gravitational Wave Discoveries Enabled by Machine Learning
Alexandra E. Koloniari, Evdokia C. Koursoumpa, Paraskevi Nousi +4
Models of binary neutron star remnants with tabulated equations of state
Panagiotis Iosif, Nikolaos Stergioulas
Coherent magneto-elastic oscillations in superfluid magnetars
Michael Gabler, Pablo Cerdá-Durán, Nikolaos Stergioulas +2
Differentially rotating neutron stars in scalar-tensor theories of gravity
Daniela D. Doneva, Stoytcho S. Yazadjiev, Nikolaos Stergioulas +1
An improved method for constructing models of self-gravitating tori around black holes
Nikolaos Stergioulas
Predicting Binary Neutron Star Postmerger Spectra Using Artificial Neural Networks
Dimitrios Pesios, Ioannis Koutalios, Dimitris Kugiumtzis +1
Towards a Stable Numerical Evolution of Strongly Gravitating Systems in General Relativity: The Conformal Treatments
Miguel Alcubierre, Bernd Bruegmann, Thomas Dramlitsch +5
Astrophysical Implications of Neutron Star Inspiral and Coalescence
John L. Friedman, Nikolaos Stergioulas
Gravitational waves and nonaxisymmetric oscillation modes in mergers of compact object binaries
Nikolaos Stergioulas, Andreas Bauswein, Kimon Zagkouris +1
Stability of general-relativistic accretion disks
Oleg Korobkin, Ernazar B. Abdikamalov, Erik Schnetter +2
Universal description of the Neutron Star's surface and its key global properties: A Machine Learning Approach for nonrotating and rapidly rotating stellar models
Grigorios Papigkiotis, Georgios Vardakas, Aristidis Likas +1
Rotating Black Holes in Higher Order Gravity
Christos Charmousis, Marco Crisostomi, Ruth Gregory +1
Rotating Stars in Relativity
Nikolaos Stergioulas
Exploring properties of high-density matter through remnants of neutron-star mergers
Andreas Bauswein, Nikolaos Stergioulas, Hans-Thomas Janka
Magneto-elastic oscillations of neutron stars: exploring different magnetic field configurations
Michael Gabler, Pablo Cerdá-Durán, José A. Font +2
Rotating Stars in Relativity
Vasileios Paschalidis, Nikolaos Stergioulas
Probing the Nature of Black Holes: Deep in the mHz Gravitational-Wave Sky
Vishal Baibhav, Leor Barack, Emanuele Berti +26
MLGWSC-1: The first Machine Learning Gravitational-Wave Search Mock Data Challenge
Marlin B. Schäfer, OndÅej Zelenka, Alexander H. Nitz +20
Rapidly rotating neutron stars in scalar-tensor theories of gravity
Daniela D. Doneva, Stoytcho S. Yazadjiev, Nikolaos Stergioulas +1
Thermonuclear and Electron-Capture Supernovae from Stripped-Envelope Stars
Savvas Chanlaridis, John Antoniadis, David R. Aguilera-Dena +3
Nonlinear Pulsations in Differentially Rotating Neutron Stars: Mass-Shedding-Induced Damping and Splitting of the Fundamental Mode
Nikolaos Stergioulas, Theocharis A. Apostolatos, Jose A. Font
Frequency deviations in universal relations of isolated neutron stars and postmerger remnants
Georgios Lioutas, Andreas Bauswein, Nikolaos Stergioulas
On the frequency band of the f-mode CFS instability
Burkhard Zink, Oleg Korobkin, Erik Schnetter +1
Nonlinear evolution of r-modes in rotating relativistic stars
Jose A. Font, Nikolaos Stergioulas
Machine Learning Applications in Gravitational Wave Astronomy
Nikolaos Stergioulas
Construction of Highly Accurate Models of Rotating Neutron Stars - Comparison of Three Different Numerical Schemes
Tetsuo Nozawa, Nikolaos Stergioulas, Eric Gourgoulhon +1
Nonaxisymmetric Neutral Modes in Rotating Relativistic Stars
Nikolaos Stergioulas, John L. Friedman
Approximate Matching of Analytic and Numerical Solutions for Rapidly Rotating Neutron Stars
Emanuele Berti, Nikolaos Stergioulas
On the dynamics of tilted black hole-torus systems
Vassilios Mewes, Filippo Galeazzi, José A. Font +2
Convective Excitation of Inertial Modes in Binary Neutron Star Mergers
Roberto De Pietri, Alessandra Feo, José A. Font +4
Heavy-tailed likelihoods for robustness against data outliers: Applications to the analysis of gravitational wave data
Argyro Sasli, Nikolaos Karnesis, Nikolaos Stergioulas
New Horizons for Fundamental Physics with LISA
K. G. Arun, Enis Belgacem, Robert Benkel +138
Comparing Models of Rapidly Rotating Relativistic Stars Constructed by Two Numerical Methods
Nikolaos Stergioulas, John L. Friedman
Gravitational Waves from Double White Dwarfs as probes of the Milky Way
Maria Georgousi, Nikolaos Karnesis, Valeriya Korol +2
Nonlinear hydrodynamical evolution of rotating relativistic stars: Numerical methods and code tests
Jose A. Font, Nikolaos Stergioulas, Kostas D. Kokkotas
Collapse of differentially rotating neutron stars and cosmic censorship
Bruno Giacomazzo, Luciano Rezzolla, Nikolaos Stergioulas
Radiation from charged particles on eccentric orbits in a dipolar magnetic field around a Schwarzschild black hole
Demetrios B. Papadopoulos, Ioannis Contopoulos, Kostas D. Kokkotas +1
Beyond Gaussian Assumptions: A new robust statistical framework for gravitational-wave data analysis
Argyro Sasli, Minas Karamanis, Nikolaos Karnesis +4
A Bayesian investigation of the neutron star equation-of-state vs. gravity degeneracy
Bhaskar Biswas, Evangelos Smyrniotis, Ioannis Liodis +1
Numerical relativity simulations of thick accretion disks around tilted Kerr black holes
Vassilios Mewes, José A. Font, Filippo Galeazzi +2
Observing Gravitational Waves From The Post-Merger Phase Of Binary Neutron Star Coalescence
James Alexander Clark, Andreas Bauswein, Nikolaos Stergioulas +1
Breakdown of I-Love-Q universality in rapidly rotating relativistic stars
Daniela D. Doneva, Stoytcho S. Yazadjiev, Nikolaos Stergioulas +1
Terrestrial Very-Long-Baseline Atom Interferometry: Summary of the Second Workshop
Adam Abdalla, Mahiro Abe, Sven Abend +307
Assessing Universal Relations for Rapidly Rotating Neutron Stars: Insights from an Interpretable Deep Learning Perspective
Grigorios Papigkiotis, Georgios Vardakas, Nikolaos Stergioulas
Constraining properties of high-density matter in neutron stars with magneto-elastic oscillations
Michael Gabler, Pablo Cerdá-Durán, Nikolaos Stergioulas +2
Nonlinear r-modes in Rapidly Rotating Relativistic Stars
Nikolaos Stergioulas, Jose A. Font
Equation of state constraints from the threshold binary mass for prompt collapse of neutron star mergers
Andreas Bauswein, Sebastian Blacker, Vimal Vijayan +7
Alfvén QPOs in Magnetars
Hajime Sotani, Kostas Kokkotas, Nikolaos Stergioulas
Differentially rotating scalarized neutron stars with realistic post-merger profile
Kalin V. Staykov, Daniela D. Doneva, Lavinia Heisenberg +2
Robustness of Sensitivity Evaluations for Gravitational Wave Detection Algorithms
Alexandra E. Koloniari, Lazaros Lazaridis, Christos Paschalidis +1
GW-FALCON: A Novel Feature-Driven Deep Learning Approach for Early Warning Alerts of BNS and NSBH Inspirals in Next-Generation GW Observatories
Grigorios Papigkiotis, Georgios Vardakas, Nikolaos Stergioulas
Magneto-elastic oscillations of neutron stars with dipolar magnetic fields
Michael Gabler, Pablo Cerdá Durán, Nikolaos Stergioulas +2
GW190814: On the properties of the secondary component of the binary
Bhaskar Biswas, Rana Nandi, Prasanta Char +2
Epicyclic frequencies for rotating strange quark stars: the importance of stellar oblateness
Dorota Gondek-Rosinska, Wlodek Kluzniak, Nikolaos Stergioulas +1
Inferring Neutron-Star Properties from Post-merger Gravitational-wave Spectra with Neural Networks
Dimitrios Pesios, Nikolaos Stergioulas
Characterization of non-Gaussian stochastic signals with heavier-tailed likelihoods
Nikolaos Karnesis, Argyro Sasli, Riccardo Buscicchio +1
Universal and approximate relations for the gravitational-wave damping timescale of $f$-modes in neutron stars
Georgios Lioutas, Nikolaos Stergioulas
Alfven QPOs in magnetars in the anelastic approximation
Pablo Cerdá-Durán, Nikolaos Stergioulas, José A. Font
ESO Expanding Horizon White Paper: Revealing the properties of matter at supranuclear densities with gravitational waves
Tim Dietrich, Tanja Hinderer, Micaela Oertel +40
Orbital and epicyclic frequencies around rapidly rotating compact stars in scalar-tensor theories of gravity
Daniela D. Doneva, Stoytcho S. Yazadjiev, Nikolaos Stergioulas +2
Terrestrial Very-Long-Baseline Atom Interferometry: Workshop Summary
Sven Abend, Baptiste Allard, Iván Alonso +250
Empirical relations for gravitational-wave asteroseismology of binary neutron star mergers
Stamatis Vretinaris, Nikolaos Stergioulas, Andreas Bauswein
Equation-of-state Constraints and the QCD Phase Transition in the Era of Gravitational-Wave Astronomy
Andreas Bauswein, Niels-Uwe Friedrich Bastian, David Blaschke +7
Gravitational Waves from Nonlinear Couplings of Radial and Polar Nonradial Modes in Relativistic Stars
Andrea Passamonti, Nikolaos Stergioulas, Alessandro Nagar
Exploring the Potential for Detecting Rotational Instabilities in Binary Neutron Star Merger Remnants with Gravitational Wave Detectors
Argyro Sasli, Nikolaos Karnesis, Nikolaos Stergioulas
Black holes, gravitational waves and fundamental physics: a roadmap
Leor Barack, Vitor Cardoso, Samaya Nissanke +203
Rotating Stars in Relativity
Nikolaos Stergioulas
Robust and fast parameter estimation for gravitational waves from binary neutron star merger remnants
Stamatis Vretinaris, Georgios Vretinaris, Christos Mermigkas +2
Black hole formation through fragmentation of toroidal polytropes
Burkhard Zink, Nikolaos Stergioulas, Ian Hawke +3
Numerical-relativity simulations of long-lived remnants of binary neutron star mergers
Roberto De Pietri, Alessandra Feo, José A. Font +3
Magneto-elastic oscillations and the damping of crustal shear modes in magnetars
Michael Gabler, Pablo Cerdá-Durán, José A. Font +2
Eryn : A multi-purpose sampler for Bayesian inference
Nikolaos Karnesis, Michael L. Katz, Natalia Korsakova +2
Astrophysical constraints on compact objects in 4D Einstein-Gauss-Bonnet gravity
Christos Charmousis, Antoine Lehébel, Evangelos Smyrniotis +1
Low-$T/|W|$ instabilities in differentially rotating neutron stars resembling merger remnants
Georgios Lioutas, Panagiotis Iosif, Andreas Bauswein +1
Torsional Oscillations of Magnetized Relativistic Stars
Neophytos Messios, Demetrios B. Papadopoulos, Nikolaos Stergioulas
Axisymmetric Modes of Rotating Relativistic Stars in the Cowling Approximation
Jose A. Font, Harald Dimmelmeier, Anshu Gupta +1
Magneto-elastic oscillations modulating the emission of magnetars
Michael Gabler, Pablo Cerdá-Durán, Alexei Mate +3
Deep Residual Error and Bag-of-Tricks Learning for Gravitational Wave Surrogate Modeling
Styliani-Christina Fragkouli, Paraskevi Nousi, Nikolaos Passalis +3
Stationary, Axisymmetric Neutron Stars with Meridional Circulation in General Relativity
Reiner Birkl, Nikolaos Stergioulas, Ewald Müller
Non-linear axisymmetric pulsations of rotating relativistic stars in the conformal flatness approximation
Harald Dimmelmeier, Nikolaos Stergioulas, Jose A. Font
An efficient GPU-accelerated multi-source global fit pipeline for LISA data analysis
Michael L. Katz, Nikolaos Karnesis, Natalia Korsakova +2
Semi-analytic derivation of the threshold mass for prompt collapse in binary neutron star mergers
Andreas Bauswein, Nikolaos Stergioulas
The Science of the Einstein Telescope
Adrian Abac, Raul Abramo, Simone Albanesi +485
Fragmentation of general relativistic quasi-toroidal polytropes
Burkhard Zink, Nikolaos Stergioulas, Ian Hawke +3
Magneto-elastic torsional oscillations of magnetars
Michael Gabler, Pablo Cerdá-Durán, José A. Font +2
Non-linear resonance in the accretion disk of a millisecond pulsar
Wlodek Kluzniak, Marek A. Abramowicz, Shoji Kato +2