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25 papers
Modern tools for computing neutron star properties
Wolfgang Kastaun, Frank Ohme
Astronomical observations place increasingly tighter and more diverse constraints on the properties of neutron stars (NS). Examples include observations of radio or gamma-ray pulsa…
Implementing a new recovery scheme for primitive variables in the general relativistic magnetohydrodynamic code Spritz
Jay V. Kalinani, Riccardo Ciolfi, Wolfgang Kastaun +3
General relativistic magnetohydrodynamic (GRMHD) simulations represent a fundamental tool to probe various underlying mechanisms at play during binary neutron star (BNS) and neutro…
Rapid model comparison of equations of state from gravitational wave observation of binary neutron star coalescences
Shaon Ghosh, Xiaoshu Liu, Jolien Creighton +3
The discovery of the coalescence of binary neutron star GW170817 was a watershed moment in the field of gravitational wave astronomy. Among the rich variety of information that we…
Numerical Inside View of Hypermassive Remnant Models for GW170817
Wolfgang Kastaun, Frank Ohme
The first multimessenger observation attributed to a merging neutron star binary provided an enormous amount of observational data. Unlocking the full potential of this data requir…
Robust Recovery of Primitive Variables in Relativistic Ideal Magnetohydrodynamics
Wolfgang Kastaun, Jay Vijay Kalinani, Riccardo Ciolfi
Modern simulation codes for general relativistic ideal magnetohydrodynamics are all facing a long standing technical problem given by the need to recover fundamental variables from…
Finite tidal effects in GW170817: Observational evidence or model assumptions?
Wolfgang Kastaun, Frank Ohme
After the detection of gravitational waves caused by the coalescence of compact objects in the mass range of neutron stars, GW170817, several studies have searched for an imprint o…