Nuclear Physics Seminar - Armen Sedrakian (Frankfurt Institute for Advanced Studies and Institute of Theoretical Physics, University of Wroclaw) "Learning from multimessenger astrophysics of compact stars"
- Event Type
- Seminar/Symposium
- Sponsor
- Physics Department
- Location
- 464 Loomis
- Date
- Apr 8, 2024 1:00 pm
- Speaker
- Armen Sedrakian
- Contact
- Brandy Koebbe
- bkoebbe@illinois.edu
- Views
- 54
- Originating Calendar
- Physics - Nuclear Physics Seminar
Relativistic density functionals based on baryon-meson Lagrangians can be used to describe effectively dense matter in compact stars including hyperonic and Delta-resonance degrees of freedom. These can be supplemented with a first-order phase transition to quark matter at high densities to describe hybrid compact stars. I will discuss how the mass-radius and tidal deformability inferences constrain the current models of hyper nuclear and hybrid stars. I will go on to discuss the bulk viscosity of dense nucleonic matter in hot compact stars, which emerged in recent years as the leading dissipative channel in binary-neutron star merger simulations.