Gravity seminar - José Luis Hernández Seminar
- Time:
- 14:00
- Date:
- 30 April 2026
- Venue:
- Building 54, room 5027
For more information regarding this seminar, please email Jonathan Thompson at J.E.Thompson@soton.ac.uk .
Event details
Title: Bulk-viscous dissipation in neutron star binary mergers
Abstract: I revisit the bulk viscosity in strange quark matter and nuclear matter considering the most relevant electroweak processes in the neutrino-transparent regime. We discuss two scenarios where
bulk-viscous dissipation plays an important role: the tidal heating during the inspiral of strange quark star binaries, where bulk-viscous dissipation induces a cumulative phase shift in the gravitational waveform; and the damping of baryon density oscillations in post-merger remnants, where bulk viscosity could affect the kHz gravitational wave emission that next-generation detectors will observe. These results suggest that bulk-viscous dissipation may provide complementary information about the properties of dense matter in neutron star interiors through future gravitational wave observations, motivating its systematic inclusion in neutron star merger simulations.
Speaker information
José Luis HernándezÌý(Barcelona)