Parameter estimation for strong phase transitions in supranuclear matter using gravitational-wave astronomy
Abstract
At supranuclear densities, explored in the core of neutron stars, a strong phase transition from hadronic matter to more exotic forms of matter might be present. To test this hypothesis, binary neutron-star mergers offer a unique possibility to probe matter at densities that we cannot create in any existing terrestrial experiment. In this work, we show that, if present, strong phase transitions can have a measurable imprint on the binary neutron-star coalescence and the emitted gravitational-wave signal. We construct a new parametrization of the supranuclear equation of state that allows us to test for the existence of a strong phase transition and extract its characteristic properties purely from the gravitational-wave signal of the inspiraling neutron stars. We test our approach using a Bayesian inference study simulating 600 signals with three different equations of state and find that for current gravitational-wave detector networks already 12 events might be sufficient to verify the presence of a strong phase transition. Finally, we use our methodology to analyze GW170817 and GW190425 but do not find any indication that a strong phase transition is present at densities probed during the inspiral.
- Authors:
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (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), Nuclear Physics (NP); National Science Foundation (NSF)
- OSTI Identifier:
- 1668448
- Alternate Identifier(s):
- OSTI ID: 1711401
- Report Number(s):
- LA-UR-20-24019
Journal ID: ISSN 2643-1564; PPRHAI; 033514
- Grant/Contract Number:
- 89233218CNA000001; AC52-06NA25396; AC02-05CH11231; PHY-0757058; PHY-0823459
- Resource Type:
- Published Article
- Journal Name:
- Physical Review Research
- Additional Journal Information:
- Journal Name: Physical Review Research Journal Volume: 2 Journal Issue: 3; Journal ID: ISSN 2643-1564
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS
Citation Formats
Pang, Peter T. H., Dietrich, Tim, Tews, Ingo, and Van Den Broeck, Chris. Parameter estimation for strong phase transitions in supranuclear matter using gravitational-wave astronomy. United States: N. p., 2020.
Web. doi:10.1103/PhysRevResearch.2.033514.
Pang, Peter T. H., Dietrich, Tim, Tews, Ingo, & Van Den Broeck, Chris. Parameter estimation for strong phase transitions in supranuclear matter using gravitational-wave astronomy. United States. https://doi.org/10.1103/PhysRevResearch.2.033514
Pang, Peter T. H., Dietrich, Tim, Tews, Ingo, and Van Den Broeck, Chris. Tue .
"Parameter estimation for strong phase transitions in supranuclear matter using gravitational-wave astronomy". United States. https://doi.org/10.1103/PhysRevResearch.2.033514.
@article{osti_1668448,
title = {Parameter estimation for strong phase transitions in supranuclear matter using gravitational-wave astronomy},
author = {Pang, Peter T. H. and Dietrich, Tim and Tews, Ingo and Van Den Broeck, Chris},
abstractNote = {At supranuclear densities, explored in the core of neutron stars, a strong phase transition from hadronic matter to more exotic forms of matter might be present. To test this hypothesis, binary neutron-star mergers offer a unique possibility to probe matter at densities that we cannot create in any existing terrestrial experiment. In this work, we show that, if present, strong phase transitions can have a measurable imprint on the binary neutron-star coalescence and the emitted gravitational-wave signal. We construct a new parametrization of the supranuclear equation of state that allows us to test for the existence of a strong phase transition and extract its characteristic properties purely from the gravitational-wave signal of the inspiraling neutron stars. We test our approach using a Bayesian inference study simulating 600 signals with three different equations of state and find that for current gravitational-wave detector networks already 12 events might be sufficient to verify the presence of a strong phase transition. Finally, we use our methodology to analyze GW170817 and GW190425 but do not find any indication that a strong phase transition is present at densities probed during the inspiral.},
doi = {10.1103/PhysRevResearch.2.033514},
journal = {Physical Review Research},
number = 3,
volume = 2,
place = {United States},
year = {Tue Sep 29 00:00:00 EDT 2020},
month = {Tue Sep 29 00:00:00 EDT 2020}
}
https://doi.org/10.1103/PhysRevResearch.2.033514
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