Conveners
Astrophysical, multi-messenger observations: Parallel session (II)
- Jérôme Margueron (CNRS-IN2P3, IP2I Lyon)
Astrophysical, multi-messenger observations
- Tim Dietrich ( Institut für Physik und Astronomie, Universität Potsdam / Max Planck Institute for Gravitational Physics)
Astrophysical, multi-messenger observations
- Andreas Bauswein (GSI Helmholtzzentrum für Schwerionenforschung GmbH(GSI))
Neutron stars are the universe’s best natural laboratories to study dense nuclear, matter. At high densities, low temperatures, and high isospin asymmtery inaccessible in terrestrial collider experiments, neutron stars host the most extreme matter in the universe. Different regions of neutron stars will probe different physics, with some observables dominated by the poorly understood physics...
Asteroseismic modes within neutron stars (NSs) provide can provide novel insight into NS structure and the physics of dense matter, as they are sensitive to a variety of different stellar properties. The multimessenger detection of a resonant shattering flare and gravitational waves from a binary NS merger could allow us to measure the frequency of the crust-core interface mode. This mode is...
The Neutron Star Interior Composition Explorer (NICER) has been in operation from the International Space Station for over 6 years now. By accurately modelling the phase-energy resolved light curves of millisecond pulsars (caused by their hot polar caps) and the effects of general relativity on these light curves, we can obtain measurements of the pulsars’ masses and radii. NICER has...
Gravitational-wave observatories have established a new field of transient astronomy. The most recent LIGO-Virgo-Kagra catalog, GWTC-3, identifies 90 merging binaries, which range from a double neutron star with a total mass of 2.7 at 40 Mpc (GW170817) to a double black hole with a total mass of 150 at 5.3 Gpc (GW190521). These observations have many potential implications for dense matter...
Binary neutron star (BNS) mergers provide a unique probe of the dense-matter equation of state (EOS) across a wide range of parameter space, from the cold, equilibrium conditions of the inspiral to the shock-heated and dynamical environment of the post-merger remnant. In this talk, I will discuss what we can (and cannot) learn about the EOS from current and upcoming observations of binary...