Neutron-Star-Merger Equation of State
Abstract
In this work, we discuss the dense matter equation of state (EOS) for the extreme range of conditions encountered in neutron stars and their mergers. The calculation of the properties of such an EOS involves modeling different degrees of freedom (such as nuclei, nucleons, hyperons, and quarks), taking into account different symmetries, and including finite density and temperature effects in a thermodynamically consistent manner. We begin by addressing subnuclear matter consisting of nucleons and a small admixture of light nuclei in the context of the excluded volume approach. We then turn our attention to supranuclear homogeneous matter as described by the Chiral Mean Field (CMF) formalism. Finally, we present results from realistic neutron-star-merger simulations performed using the CMF model that predict signatures for deconfinement to quark matter in gravitational wave signals.
Additional Information
© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). (This article belongs to the Special Issue Compact Stars in the QCD Phase Diagram and in the Multi-Messenger Era of Astronomy) Support comes from "PHAROS" COST Action CA16214, LOEWE-Program in HIC for FAIR, European Union's Horizon 2020 Research and Innovation Programme (Grant 671698) (call FETHPC-1-2014, project ExaHyPE), ERC Synergy Grant "BlackHoleCam: Imaging the Event Horizon of Black Holes" (Grant No. 610058), Judah M. Eisenberg - Laureatus Professur at the fachbereich physik at Goethe Universitaet, and the National Science Foundation under grant PHY-1748621. The simulations were performed on the SuperMUC cluster at the LRZ in Garching, on the LOEWE cluster in CSC in Frankfurt, and on the HazelHen cluster at the HLRS in Stuttgart. Author Contributions. All authors contributed significantly to this work. The authors declare no conflict of interest.Attached Files
Published - universe-05-00129-v2.pdf
Files
| Name | Size | Download all |
|---|---|---|
|
md5:737436d8bf24e199a3ba32af778b1bd5
|
1.8 MB | Preview Download |
Additional details
- Eprint ID
- 121246
- Resolver ID
- CaltechAUTHORS:20230502-434224000.1
- CA16214
- European Cooperation in Science and Technology (COST)
- Helmholtz International Center for FAIR
- 671698
- European Research Council (ERC)
- 610058
- European Research Council (ERC)
- GSI Helmholtz Centre for Heavy Ion Research
- PHY-1748621
- NSF
- Created
-
2023-05-04Created from EPrint's datestamp field
- Updated
-
2023-05-04Created from EPrint's last_modified field