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Neutron-star radius constraints from GW170817 and future detections
Andreas Bauswein, Oliver Just, Hans-Thomas Janka +1
We introduce a new, powerful method to constrain properties of neutron stars (NSs). We show that the total mass of GW170817 provides a reliable constraint on the stellar radius if…
Constraining properties of high-density matter in neutron stars with magneto-elastic oscillations
Michael Gabler, Pablo Cerdá-Durán, Nikolaos Stergioulas +2
We discuss torsional oscillations of highly magnetised neutron stars (magnetars) using two-dimensional, magneto-elastic-hydrodynamical simulations. Our model is able to explain bot…
Magneto-elastic oscillations modulating the emission of magnetars
Michael Gabler, Pablo Cerdá-Durán, Alexei Mate +3
Magneto-elastic oscillations of neutron stars are believed to explain observed quasi-periodic oscillations (QPOs) in the decaying tail of the giant flares of highly magnetized neut…
Universal relations for differentially rotating relativistic stars at the threshold to collapse
Gabriele Bozzola, Nikolaos Stergioulas, Andreas Bauswein
A binary neutron star merger produces a rapidly and differentially rotating compact remnant whose lifespan heavily affects the electromagnetic and gravitational emissions. Its stab…
Universal and approximate relations for the gravitational-wave damping timescale of -modes in neutron stars
Georgios Lioutas, Nikolaos Stergioulas
Existing estimates of the gravitational-wave damping timescale of the dominant quadrupole oscillation mode in the case of rapidly rotating stars are based on using a Newtonian esti…
Semi-analytic derivation of the threshold mass for prompt collapse in binary neutron star mergers
Andreas Bauswein, Nikolaos Stergioulas
The threshold mass for prompt collapse in binary neutron star mergers was empirically found to depend on the stellar properties of the maximum-mass non-rotating neutron star model.…