76 citations · 159 across the 9 of their papers we have counts for
9 papers
Low- instabilities in differentially rotating neutron stars resembling merger remnants
Georgios Lioutas, Panagiotis Iosif, Andreas Bauswein +1
We construct constant rest-mass sequences of equilibrium models of differentially rotating neutron stars which resemble binary neutron star post-merger remnants. For a more realist…
Hyperonic degrees of freedom in binary neutron star mergers
Laura Tolos, Hristijan Kochankovski, Angels Ramos +3
We analyze the influence of hyperons in binary neutron star mergers considering several different equations of state that include hyperons. By running a large set of simulations, w…
Stellar properties indicating the presence of hyperons in neutron stars
Andreas Bauswein, Aristeidis Nikolaidis, Georgios Lioutas +7
We describe distinctive stellar features indicating the presence of hyperons in neutron stars as compared to purely nucleonic systems. A strongly negative curvature of the mass-rad…
The impact of hyperons on neutron star mergers: gravitational waves, mass ejection and black hole formation
Hristijan Kochankovski, Georgios Lioutas, Sebastian Blacker +3
We study the influence of hyperons in binary neutron star (NS) mergers considering a total of 14 temperature dependent equations of state (EoSs) models which include hyperonic degr…
Towards inferring the geometry of kilonovae
Christine E. Collins, Luke J. Shingles, Andreas Bauswein +11
Recent analysis of the kilonova, AT2017gfo, has indicated that this event was highly spherical. This may challenge hydrodynamics simulations of binary neutron star mergers, which u…
General relativistic moving-mesh hydrodynamics simulations with AREPO and applications to neutron star mergers
Georgios Lioutas, Andreas Bauswein, Theodoros Soultanis +3
We implement general relativistic hydrodynamics in the moving-mesh code AREPO. We also couple a solver for the Einstein field equations employing the conformal flatness approximati…
Frequency deviations in universal relations of isolated neutron stars and postmerger remnants
Georgios Lioutas, Andreas Bauswein, Nikolaos Stergioulas
We relate the fundamental quadrupolar fluid mode of isolated non-rotating NSs and the dominant oscillation frequency of neutron star merger remnants. Both frequencies individually…
Systematics of prompt black-hole formation in neutron star mergers
Andreas Bauswein, Sebastian Blacker, Georgios Lioutas +3
This study addresses the collapse behavior of neutron star (NS) mergers expressed through the binary threshold mass M_thr for prompt black hole (BH) formation, which we determine b…
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…