Symmetry energy constraints from GW170817 and laboratory experiments
Abstract
The LIGO-Virgo collaboration detection of the binary neutron-star merger event, GW170817, has expanded efforts to understand the Equation of State (EoS) of nuclear matter. These measurements provide new constraints on the overall pressure, but do not elucidate its origins, by not distinguishing the contribution to the pressure from symmetry energy which governs much of the internal structure of a neutron star. By combining the neutron star EoS extracted from the GW170817 event and the EoS of symmetric matter from nucleus-nucleus collision experiments, we extract the symmetry pressure, which is the difference in pressure between neutron and nuclear matter over the density region from to . While the uncertainties in the symmetry pressure are large, they can be reduced with new experimental and astrophysical results.
- Authors:
- Publication Date:
- Research Org.:
- Michigan State Univ., East Lansing, MI (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP); USDOE National Nuclear Security Administration (NNSA); National Science Foundation (NSF)
- OSTI Identifier:
- 1530624
- Alternate Identifier(s):
- OSTI ID: 1596127
- Grant/Contract Number:
- SC0019209; NA0002923; SC001920; PHY-1565546
- Resource Type:
- Published Article
- Journal Name:
- Physics Letters. B
- Additional Journal Information:
- Journal Name: Physics Letters. B Journal Volume: 795 Journal Issue: C; Journal ID: ISSN 0370-2693
- Publisher:
- Elsevier
- Country of Publication:
- Netherlands
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; equation of state; neutron star merger; Skyrme interactions; tidal polarizability; gravitational waves; heavy ion collisions
Citation Formats
Tsang, M. B., Lynch, W. G., Danielewicz, P., and Tsang, C. Y. Symmetry energy constraints from GW170817 and laboratory experiments. Netherlands: N. p., 2019.
Web. doi:10.1016/j.physletb.2019.06.059.
Tsang, M. B., Lynch, W. G., Danielewicz, P., & Tsang, C. Y. Symmetry energy constraints from GW170817 and laboratory experiments. Netherlands. https://doi.org/10.1016/j.physletb.2019.06.059
Tsang, M. B., Lynch, W. G., Danielewicz, P., and Tsang, C. Y. Thu .
"Symmetry energy constraints from GW170817 and laboratory experiments". Netherlands. https://doi.org/10.1016/j.physletb.2019.06.059.
@article{osti_1530624,
title = {Symmetry energy constraints from GW170817 and laboratory experiments},
author = {Tsang, M. B. and Lynch, W. G. and Danielewicz, P. and Tsang, C. Y.},
abstractNote = {The LIGO-Virgo collaboration detection of the binary neutron-star merger event, GW170817, has expanded efforts to understand the Equation of State (EoS) of nuclear matter. These measurements provide new constraints on the overall pressure, but do not elucidate its origins, by not distinguishing the contribution to the pressure from symmetry energy which governs much of the internal structure of a neutron star. By combining the neutron star EoS extracted from the GW170817 event and the EoS of symmetric matter from nucleus-nucleus collision experiments, we extract the symmetry pressure, which is the difference in pressure between neutron and nuclear matter over the density region from 1.2ρ0 to 4.5ρ0. While the uncertainties in the symmetry pressure are large, they can be reduced with new experimental and astrophysical results.},
doi = {10.1016/j.physletb.2019.06.059},
journal = {Physics Letters. B},
number = C,
volume = 795,
place = {Netherlands},
year = {Thu Aug 01 00:00:00 EDT 2019},
month = {Thu Aug 01 00:00:00 EDT 2019}
}
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https://doi.org/10.1016/j.physletb.2019.06.059
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