4 papers
Supermassive Neutron Stars Rule Out Twin Stars
Jan-Erik Christian, Jürgen Schaffner-Bielich
We investigate the implications of a hypothetical neutron star in regard to the possibility of a strong phase transition to quark matter. We use equations o…
Twin stars and the stiffness of the nuclear equation of state: ruling out strong phase transitions below with the new NICER radius measurements
Jan-Erik Christian, Jürgen Schaffner-Bielich
We explore the connection between the stiffness of an hadronic equation of state (EoS) with a sharp phase transition to quark matter to its tidal deformability. For this we employ…
Signals in the tidal deformability for phase transitions in compact stars with constraints from GW170817
Jan-Erik Christian, Andreas Zacchi, Jürgen Schaffner-Bielich
We compute the tidal deformabilities for neutron star merger for equations of state with a strong first order phase transition producing a new separate branch in the mass-radius di…
Relativistic parameterizations of neutron matter and implications for neutron stars
Nadine Hornick, Laura Tolos, Andreas Zacchi +2
We construct parameter sets of the relativistic mean-field model fitted to the recent constraints on the asymmetry energy and the slope parameter for pure neutron matter. W…