Bulk viscosity from Urca processes: npeμ matter in the neutrino-trapped regime
Abstract
In this work, we extend our previous study of the bulk viscosity of hot and dense npe matter induced by the Urca process in the neutrino trapped regime to npeμ matter by adding the muonic Urca processes as well as the purely leptonic electroweak processes involving electron-muon transition. Here, the nuclear matter is modeled in a relativistic density functional approach with two different parametrizations which predict neutrino dominated matter (DDME2 model) and anti-neutrino dominated matter (NL3 model) at temperatures for which neutrinos/anti-neutrinos are trapped. In the case of neutrino-dominated matter, the main equilibration mechanism is lepton capture, whereas in the case of antineutrino-dominated matter this is due to neutron decay. We find that the equilibration rates of Urca processes are higher than that of the pure leptonic processes, which implies that the Urca bulk viscosity can be computed with the leptonic reactions assumed to be frozen. We find that the bulk viscosity decreases with temperature as ζ~T–2 at moderate temperatures. At high temperatures this scaling breaks down by sharp drops of the bulk viscosity close to the temperature where the proton fraction is density-independent and the matter becomes scale-invariant. This occurs also when the matter undergoes a transition from themore »
- Authors:
-
- Washington Univ., St. Louis, MO (United States)
- Yerevan State Univ. (Armenia)
- Frankfurt Inst. for Advanced Studies (FIAS), Frankfurt (Germany); Univ. of Wroclaw (Poland)
- Publication Date:
- Research Org.:
- Washington Univ., St. Louis, MO (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP); Volkswagen Foundation; European Cooperation in Science and Technology (COST); German Research Foundation (DFG); Polish National Science Centre (NCN)
- OSTI Identifier:
- 1831418
- Grant/Contract Number:
- FG02-05ER41375; 96 839; CA16214; SE 1836/5-1; 2020/37/B/ST9/01937
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Volume: 104; Journal Issue: 10; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Alford, Mark, Harutyunyan, Arus, and Sedrakian, Armen. Bulk viscosity from Urca processes: npeμ matter in the neutrino-trapped regime. United States: N. p., 2021.
Web. doi:10.1103/physrevd.104.103027.
Alford, Mark, Harutyunyan, Arus, & Sedrakian, Armen. Bulk viscosity from Urca processes: npeμ matter in the neutrino-trapped regime. United States. https://doi.org/10.1103/physrevd.104.103027
Alford, Mark, Harutyunyan, Arus, and Sedrakian, Armen. Thu .
"Bulk viscosity from Urca processes: npeμ matter in the neutrino-trapped regime". United States. https://doi.org/10.1103/physrevd.104.103027. https://www.osti.gov/servlets/purl/1831418.
@article{osti_1831418,
title = {Bulk viscosity from Urca processes: npeμ matter in the neutrino-trapped regime},
author = {Alford, Mark and Harutyunyan, Arus and Sedrakian, Armen},
abstractNote = {In this work, we extend our previous study of the bulk viscosity of hot and dense npe matter induced by the Urca process in the neutrino trapped regime to npeμ matter by adding the muonic Urca processes as well as the purely leptonic electroweak processes involving electron-muon transition. Here, the nuclear matter is modeled in a relativistic density functional approach with two different parametrizations which predict neutrino dominated matter (DDME2 model) and anti-neutrino dominated matter (NL3 model) at temperatures for which neutrinos/anti-neutrinos are trapped. In the case of neutrino-dominated matter, the main equilibration mechanism is lepton capture, whereas in the case of antineutrino-dominated matter this is due to neutron decay. We find that the equilibration rates of Urca processes are higher than that of the pure leptonic processes, which implies that the Urca bulk viscosity can be computed with the leptonic reactions assumed to be frozen. We find that the bulk viscosity decreases with temperature as ζ~T–2 at moderate temperatures. At high temperatures this scaling breaks down by sharp drops of the bulk viscosity close to the temperature where the proton fraction is density-independent and the matter becomes scale-invariant. This occurs also when the matter undergoes a transition from the antineutrino-dominated regime to the neutrino-dominated regime where the bulk viscosity attains a local maximum. We also estimate the bulk viscous dissipation timescales and find that these are in the range ≳ 1 s for temperatures above the neutrino trapping temperature. These timescales would be relevant only for long-lived objects formed in binary neutron star mergers and hot proto-neutron stars formed in core-collapse supernovas.},
doi = {10.1103/physrevd.104.103027},
journal = {Physical Review D},
number = 10,
volume = 104,
place = {United States},
year = {Thu Nov 18 00:00:00 EST 2021},
month = {Thu Nov 18 00:00:00 EST 2021}
}
Works referenced in this record:
Bulk viscosity in kaon condensed matter
journal, June 2007
- Chatterjee, Debarati; Bandyopadhyay, Debades
- Physical Review D, Vol. 75, Issue 12
Viscosity of neutron star matter and -modes in rotating pulsars
journal, February 2015
- Kolomeitsev, E. E.; Voskresensky, D. N.
- Physical Review C, Vol. 91, Issue 2
GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
journal, October 2017
- Abbott, B. P.; Abbott, R.; Abbott, T. D.
- Physical Review Letters, Vol. 119, Issue 16
Projecting the likely importance of weak-interaction-driven bulk viscosity in neutron star mergers
journal, October 2021
- Most, Elias R.; Harris, Steven P.; Plumberg, Christopher
- Monthly Notices of the Royal Astronomical Society, Vol. 509, Issue 1
GWTC-2: Compact Binary Coalescences Observed by LIGO and Virgo during the First Half of the Third Observing Run
journal, June 2021
- Abbott, R.; Abbott, T. D.; Abraham, S.
- Physical Review X, Vol. 11, Issue 2
equilibrium in neutron-star mergers
journal, December 2018
- Alford, Mark G.; Harris, Steven P.
- Physical Review C, Vol. 98, Issue 6
Damping of density oscillations in neutrino-transparent nuclear matter
journal, September 2019
- Alford, Mark G.; Harris, Steven P.
- Physical Review C, Vol. 100, Issue 3
New relativistic mean-field interaction with density-dependent meson-nucleon couplings
journal, February 2005
- Lalazissis, G. A.; Nikšić, T.; Vretenar, D.
- Physical Review C, Vol. 71, Issue 2
Gravitational waves from neutron star mergers and their relation to the nuclear equation of state
journal, November 2019
- Baiotti, Luca
- Progress in Particle and Nuclear Physics, Vol. 109
Low mass binary neutron star mergers: Gravitational waves and neutrino emission
journal, February 2016
- Foucart, Francois; Haas, Roland; Duez, Matthew D.
- Physical Review D, Vol. 93, Issue 4
Charged-current muonic reactions in core-collapse supernovae
journal, July 2020
- Guo, Gang; Martínez-Pinedo, Gabriel; Lohs, A.
- Physical Review D, Vol. 102, Issue 2
Viscous Dissipation and Heat Conduction in Binary Neutron-Star Mergers
journal, January 2018
- Alford, Mark G.; Bovard, Luke; Hanauske, Matthias
- Physical Review Letters, Vol. 120, Issue 4
Transport of neutrinos in hot neutron-star matter
journal, June 1979
- Sawyer, R. F.; Soni, A.
- The Astrophysical Journal, Vol. 230
Bulk viscosity of baryonic matter with trapped neutrinos
journal, November 2019
- Alford, Mark; Harutyunyan, Arus; Sedrakian, Armen
- Physical Review D, Vol. 100, Issue 10
Binary Neutron Star Mergers
journal, July 2012
- Faber, Joshua A.; Rasio, Frederic A.
- Living Reviews in Relativity, Vol. 15, Issue 1
Hot quark matter and (proto-) neutron stars
journal, July 2019
- Malfatti, Germán; Orsaria, Milva G.; Contrera, Gustavo A.
- Physical Review C, Vol. 100, Issue 1
Bulk viscosity in nuclear and quark matter
journal, July 2007
- Dong, Hui; Su, Nan; Wang, Qun
- Journal of Physics G: Nuclear and Particle Physics, Vol. 34, Issue 8
Neutron Star Mergers: Probing the EoS of Hot, Dense Matter by Gravitational Waves
journal, January 2019
- Hanauske, Matthias; Steinheimer, Jan; Motornenko, Anton
- Particles, Vol. 2, Issue 1
How loud are neutron star mergers?
journal, July 2016
- Bernuzzi, Sebastiano; Radice, David; Ott, Christian D.
- Physical Review D, Vol. 94, Issue 2
Phases of Hadron-Quark Matter in (Proto) Neutron Stars
journal, July 2019
- Weber, Fridolin; Farrell, Delaney; Spinella, William M.
- Universe, Vol. 5, Issue 7
Thermodynamics conditions of matter in neutron star mergers
journal, August 2019
- Perego, Albino; Bernuzzi, Sebastiano; Radice, David
- The European Physical Journal A, Vol. 55, Issue 8
Bulk viscosity in superfluid neutron star cores: II. Modified Urca processes in ${\vec{npe}}$ ${\mathsf \mu}$ matter
journal, June 2001
- Haensel, P.; Levenfish, K. P.; Yakovlev, D. G.
- Astronomy & Astrophysics, Vol. 372, Issue 1
Beyond second-order convergence in simulations of magnetized binary neutron stars with realistic microphysics
journal, October 2019
- Most, E. R.; Papenfort, L. Jens; Rezzolla, L.
- Monthly Notices of the Royal Astronomical Society, Vol. 490, Issue 3
Binary neutron star mergers: a review of Einstein’s richest laboratory
journal, July 2017
- Baiotti, Luca; Rezzolla, Luciano
- Reports on Progress in Physics, Vol. 80, Issue 9
Strangeness-changing rates and hyperonic bulk viscosity in neutron star mergers
journal, April 2021
- Alford, Mark G.; Haber, Alexander
- Physical Review C, Vol. 103, Issue 4
Composition and structure of protoneutron stars
journal, February 1997
- Prakash, M.
- Physics Reports, Vol. 280, Issue 1
Medium modification of the charged-current neutrino opacity and its implications
journal, December 2012
- Roberts, L. F.; Reddy, Sanjay; Shen, Gang
- Physical Review C, Vol. 86, Issue 6
Binary Neutron star Mergers: a jet Engine for Short Gamma-Ray Bursts
journal, June 2016
- Ruiz, Milton; Lang, Ryan N.; Paschalidis, Vasileios
- The Astrophysical Journal, Vol. 824, Issue 1
Bulk viscosity of hot-neutron-star matter from direct URCA processes
journal, June 1992
- Haensel, P.; Schaeffer, R.
- Physical Review D, Vol. 45, Issue 12
Damping of neutron star pulsations by weak interaction processes
journal, April 1980
- Sawyer, R. F.
- The Astrophysical Journal, Vol. 237
Large amplitude behavior of the bulk viscosity of dense matter
journal, November 2010
- Alford, Mark G.; Mahmoodifar, Simin; Schwenzer, Kai
- Journal of Physics G: Nuclear and Particle Physics, Vol. 37, Issue 12
Bulk viscosity of neutron-star matter
journal, September 2001
- Jones, P. B.
- Physical Review D, Vol. 64, Issue 8
Concluding Remarks: Connecting Relativistic Heavy Ion Collisions and Neutron Star Mergers by the Equation of State of Dense Hadron- and Quark Matter as signalled by Gravitational Waves
journal, July 2017
- Hanauske, Matthias; Steinheimer, Jan; Bovard, Luke
- Journal of Physics: Conference Series, Vol. 878
Leptonic contribution to the bulk viscosity of nuclear matter
journal, November 2010
- Alford, Mark G.; Good, Gerald
- Physical Review C, Vol. 82, Issue 5
Identifying a First-Order Phase Transition in Neutron-Star Mergers through Gravitational Waves
journal, February 2019
- Bauswein, Andreas; Bastian, Niels-Uwe F.; Blaschke, David B.
- Physical Review Letters, Vol. 122, Issue 6
Bulk Viscous Damping of Density Oscillations in Neutron Star Mergers
journal, June 2020
- Alford, Mark; Harutyunyan, Arus; Sedrakian, Armen
- Particles, Vol. 3, Issue 2
Gravitational Waves and Neutrino Emission from the Merger of Binary Neutron Stars
journal, July 2011
- Sekiguchi, Yuichiro; Kiuchi, Kenta; Kyutoku, Koutarou
- Physical Review Letters, Vol. 107, Issue 5
New parametrization for the Lagrangian density of relativistic mean field theory
journal, January 1997
- Lalazissis, G. A.; König, J.; Ring, P.
- Physical Review C, Vol. 55, Issue 1
Structure of stable binary neutron star merger remnants: Role of initial spin
journal, August 2017
- Kastaun, W.; Ciolfi, R.; Endrizzi, A.
- Physical Review D, Vol. 96, Issue 4
Relativistic mean field calculations with density-dependent meson-nucleon coupling
journal, September 1999
- Typel, S.; Wolter, H. H.
- Nuclear Physics A, Vol. 656, Issue 3-4
Science case for the Einstein telescope
journal, March 2020
- Maggiore, Michele; Broeck, Chris Van Den; Bartolo, Nicola
- Journal of Cosmology and Astroparticle Physics, Vol. 2020, Issue 03
Gravitational waves, neutrino emissions and effects of hyperons in binary neutron star mergers
journal, June 2012
- Kiuchi, Kenta; Sekiguchi, Yuichiro; Kyutoku, Koutarou
- Classical and Quantum Gravity, Vol. 29, Issue 12
Relativistic simulations of eccentric binary neutron star mergers: One-arm spiral instability and effects of neutron star spin
journal, January 2016
- East, William E.; Paschalidis, Vasileios; Pretorius, Frans
- Physical Review D, Vol. 93, Issue 2
Muonization of supernova matter
journal, December 2020
- Fischer, Tobias; Guo, Gang; Martínez-Pinedo, Gabriel
- Physical Review D, Vol. 102, Issue 12
Bulk viscosity of hot neutron-star matter and the maximum rotation rates of neutron stars
journal, June 1989
- Sawyer, Raymond F.
- Physical Review D, Vol. 39, Issue 12