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Title: What can neutron stars reveal about the equation of state of dense matter?

Abstract

Neutron stars are astrophysical objects of extremes, reaching the highest densities we can observe in the cosmos, and probing matter under conditions that cannot be recreated in terrestrial experiments. In August 2017, the first neutron-star merger has been observed, which provided compelling evidence that these events are an important site for r-process nucleosynthesis. Furthermore, the gravitational-wave signal of such events might shed light upon the nature of strongly interacting matter in the neutron-star core. To understand these remarkable events, reliable nuclear physics input is essential. In this contribution, I explain how to use chiral effective field theory and advanced many-body methods to provide a consistent and systematic approach to strongly inter- acting systems from nuclei to neutron stars with controlled theoretical uncertainties. I will discuss recent results for the equation of state relevant for the nuclear astrophysics of neutron stars and neutron-star mergers.

Authors:
ORCiD logo [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE Office of Science (SC)
OSTI Identifier:
1663191
Report Number(s):
LA-UR-20-21735
Journal ID: ISSN 2100-014X
Grant/Contract Number:  
89233218CNA000001; AC02-05CH11231; AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
EPJ Web of Conferences
Additional Journal Information:
Journal Volume: 235; Journal ID: ISSN 2100-014X
Publisher:
EDP Sciences
Country of Publication:
United States
Language:
English

Citation Formats

Tews, Ingo. What can neutron stars reveal about the equation of state of dense matter?. United States: N. p., 2020. Web. doi:10.1051/epjconf/202023507002.
Tews, Ingo. What can neutron stars reveal about the equation of state of dense matter?. United States. doi:10.1051/epjconf/202023507002.
Tews, Ingo. Tue . "What can neutron stars reveal about the equation of state of dense matter?". United States. doi:10.1051/epjconf/202023507002. https://www.osti.gov/servlets/purl/1663191.
@article{osti_1663191,
title = {What can neutron stars reveal about the equation of state of dense matter?},
author = {Tews, Ingo},
abstractNote = {Neutron stars are astrophysical objects of extremes, reaching the highest densities we can observe in the cosmos, and probing matter under conditions that cannot be recreated in terrestrial experiments. In August 2017, the first neutron-star merger has been observed, which provided compelling evidence that these events are an important site for r-process nucleosynthesis. Furthermore, the gravitational-wave signal of such events might shed light upon the nature of strongly interacting matter in the neutron-star core. To understand these remarkable events, reliable nuclear physics input is essential. In this contribution, I explain how to use chiral effective field theory and advanced many-body methods to provide a consistent and systematic approach to strongly inter- acting systems from nuclei to neutron stars with controlled theoretical uncertainties. I will discuss recent results for the equation of state relevant for the nuclear astrophysics of neutron stars and neutron-star mergers.},
doi = {10.1051/epjconf/202023507002},
journal = {EPJ Web of Conferences},
number = ,
volume = 235,
place = {United States},
year = {2020},
month = {6}
}

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