IReNA Online Seminar featuring Carolyn Raithel (Institute for Advanced Study)

Apr
01
2022
Apr
01
2022

Event Location
Online

Event Audience
Graduate Students
Postdocs
Scientists
Undergraduate Students

Event Hosted By
JINA-CEE

About the speaker

About the speaker

https://craithel.github.io/


Event Contact

jinacee@msu.edu

C. Raithel

Title: Probing the Dense-Matter Equation of State with Neutron Star Mergers

Abstract: Binary neutron star mergers provide a unique probe of the dense-matter equation of state (EOS) across a wide range of parameter space, from the cold EOS during the inspiral to the finite-temperature EOS following the merger. In this talk, I will start with an overview of what we have learned about the EOS from the first few LIGO-Virgo observations of binary neutron star inspirals. I will then discuss what additional EOS information can be extracted by studying the late-stages of a binary neutron star merger, during which time the matter is heated to significant temperatures and can deviate away from its initial equilibrium composition. I will present a new set of neutron star merger simulations, which use a parametrized framework for calculating the EOS at arbitrary temperatures and compositions. I will show how varying the properties of the particle effective mass affects the thermal profile of the post-merger remnant and how this, in turn, and influences the post-merger evolution. I will discuss the imprint of the nuclear symmetry energy on the post-merger properties. Finally, I will provide a new set of quasi-universal relations that can be used to constrain the dense-matter EOS with future gravitational wave events.