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Title: Confronting gravitational-wave observations with modern nuclear physics constraints

Abstract

Multi-messenger observations of neutron star (NS) mergers have the potential to revolutionize nuclear astrophysics. They will improve our understanding of nucleosynthesis, provide insights about the equation of state (EOS) of strongly interacting matter at high densities, and enable tests of the theory of gravity and of dark matter. We focus on the EOS, where both gravitational waves (GWs) from neutron-star mergers and X-ray observations from space-based detectors such as NICER will provide more stringent constraints on the structure of neutron stars. Furthermore, recent advances in nuclear theory have enabled reliable calculations of the EOS at low densities using effective field theory based Hamiltonians and advanced techniques to solve the quantum many-body problem. In this paper, we address how the first observation of GWs from GW170817 can be combined with modern calculations of the EOS to extract useful insights about the EOS of matter encountered inside neutron stars. We analyze the impact of various uncertainties, the role of phase transitions in the NS core, and discuss how future observations will improve our understanding of dense matter.

Authors:
 [1];  [2];  [3]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Univ. of Lyon, Villeurbanne (France). Inst. of Nuclear Physics of Lyon (IPNL)
  3. Univ. of Washington, Seattle, WA (United States). Inst. for Nuclear Theory; Michigan State Univ., East Lansing, MI (United States). JINA-CEE
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of Washington, Seattle, WA (United States); Michigan State Univ., East Lansing, MI (United States); Univ. of Lyon, Villeurbanne (France)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); USDOE National Nuclear Security Administration (NNSA); National Science Foundation (NSF); European Cooperation in Science and Technology (COST)
OSTI Identifier:
1542847
Report Number(s):
LA-UR-19-20198
Journal ID: ISSN 1434-6001
Grant/Contract Number:  
89233218CNA000001; AC02-05CH11231; FG02-00ER41132; PHY-1430152; MP1304; MP16214
Resource Type:
Accepted Manuscript
Journal Name:
European Physical Journal. A
Additional Journal Information:
Journal Volume: 55; Journal Issue: 6; Journal ID: ISSN 1434-6001
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 79 ASTRONOMY AND ASTROPHYSICS

Citation Formats

Tews, I., Margueron, J., and Reddy, S. Confronting gravitational-wave observations with modern nuclear physics constraints. United States: N. p., 2019. Web. doi:10.1140/epja/i2019-12774-6.
Tews, I., Margueron, J., & Reddy, S. Confronting gravitational-wave observations with modern nuclear physics constraints. United States. doi:10.1140/epja/i2019-12774-6.
Tews, I., Margueron, J., and Reddy, S. Fri . "Confronting gravitational-wave observations with modern nuclear physics constraints". United States. doi:10.1140/epja/i2019-12774-6.
@article{osti_1542847,
title = {Confronting gravitational-wave observations with modern nuclear physics constraints},
author = {Tews, I. and Margueron, J. and Reddy, S.},
abstractNote = {Multi-messenger observations of neutron star (NS) mergers have the potential to revolutionize nuclear astrophysics. They will improve our understanding of nucleosynthesis, provide insights about the equation of state (EOS) of strongly interacting matter at high densities, and enable tests of the theory of gravity and of dark matter. We focus on the EOS, where both gravitational waves (GWs) from neutron-star mergers and X-ray observations from space-based detectors such as NICER will provide more stringent constraints on the structure of neutron stars. Furthermore, recent advances in nuclear theory have enabled reliable calculations of the EOS at low densities using effective field theory based Hamiltonians and advanced techniques to solve the quantum many-body problem. In this paper, we address how the first observation of GWs from GW170817 can be combined with modern calculations of the EOS to extract useful insights about the EOS of matter encountered inside neutron stars. We analyze the impact of various uncertainties, the role of phase transitions in the NS core, and discuss how future observations will improve our understanding of dense matter.},
doi = {10.1140/epja/i2019-12774-6},
journal = {European Physical Journal. A},
number = 6,
volume = 55,
place = {United States},
year = {2019},
month = {6}
}

Journal Article:
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This content will become publicly available on June 21, 2020
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Cited by: 7 works
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