Bulk viscosity transport coefficients in neutron star mergers

Yumu Yang, Mauricio Hippert, Enrico Speranza, Jorge Noronha

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We compute first and second-order bulk-viscous transport properties due to weak-interaction processes in npe matter in the neutrino transparent regime. The transport coefficients characterize the out-of-beta-equilibrium pressure corrections, which depend on the weak-interaction rates and the equation of state. We calculate these coefficients for realistic equations of state and show they are sensitive to changes in the nuclear symmetry energy J and its slope L.

Original languageEnglish (US)
Title of host publication30th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, Quark Matter 2023
EditorsRene Bellwied, Frank Geurts, Ralf Rapp, Claudia Ratti, Anthony Timmins, Ivan Vitev
PublisherEDP Sciences
ISBN (Electronic)9782759891269
DOIs
StatePublished - Jun 26 2024
Externally publishedYes
Event30th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, Quark Matter 2023 - Houston, United States
Duration: Sep 3 2023Sep 9 2023

Publication series

NameEPJ Web of Conferences
Volume296
ISSN (Print)2101-6275
ISSN (Electronic)2100-014X

Conference

Conference30th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, Quark Matter 2023
Country/TerritoryUnited States
CityHouston
Period9/3/239/9/23

ASJC Scopus subject areas

  • General Physics and Astronomy

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