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Title: Anomalous hydrodynamics kicks neutron stars

Abstract

Observations show that, at the beginning of their existence, neutron stars are accelerated briskly to velocities of up to 1000 km/s. We discuss possible mechanisms contributing to these kicks in a systematic effective-field-theory framework. Anomalies of the underlying microscopic theory result in chiral transport terms in the hydrodynamic description, and we identify these as explanation for the drastic acceleration. In the presence of vorticity or a magnetic field, the chiral transport effects cause neutrino emission along the respective axes. In typical scenarios, the transport effect due to the magnetic field turns out to be strong enough to explain the kicks. Mixed gauge-gravitational anomalies enter in a distinct way, and we also discuss their implications.

Authors:
ORCiD logo; ; ;
Publication Date:
Research Org.:
Univ. of Alabama, Tuscaloosa, AL (United States). Dept. of Physics and Astronomy; Univ. of Washington, Seattle, WA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
OSTI Identifier:
1353491
Alternate Identifier(s):
OSTI ID: 1436110; OSTI ID: 1595300
Grant/Contract Number:  
SC0011637
Resource Type:
Published Article
Journal Name:
Physics Letters B
Additional Journal Information:
Journal Name: Physics Letters B Journal Volume: 760 Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
Netherlands
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Kaminski, Matthias, Uhlemann, Christoph F., Bleicher, Marcus, and Schaffner-Bielich, Jürgen. Anomalous hydrodynamics kicks neutron stars. Netherlands: N. p., 2016. Web. doi:10.1016/j.physletb.2016.06.054.
Kaminski, Matthias, Uhlemann, Christoph F., Bleicher, Marcus, & Schaffner-Bielich, Jürgen. Anomalous hydrodynamics kicks neutron stars. Netherlands. doi:https://doi.org/10.1016/j.physletb.2016.06.054
Kaminski, Matthias, Uhlemann, Christoph F., Bleicher, Marcus, and Schaffner-Bielich, Jürgen. Thu . "Anomalous hydrodynamics kicks neutron stars". Netherlands. doi:https://doi.org/10.1016/j.physletb.2016.06.054.
@article{osti_1353491,
title = {Anomalous hydrodynamics kicks neutron stars},
author = {Kaminski, Matthias and Uhlemann, Christoph F. and Bleicher, Marcus and Schaffner-Bielich, Jürgen},
abstractNote = {Observations show that, at the beginning of their existence, neutron stars are accelerated briskly to velocities of up to 1000 km/s. We discuss possible mechanisms contributing to these kicks in a systematic effective-field-theory framework. Anomalies of the underlying microscopic theory result in chiral transport terms in the hydrodynamic description, and we identify these as explanation for the drastic acceleration. In the presence of vorticity or a magnetic field, the chiral transport effects cause neutrino emission along the respective axes. In typical scenarios, the transport effect due to the magnetic field turns out to be strong enough to explain the kicks. Mixed gauge-gravitational anomalies enter in a distinct way, and we also discuss their implications.},
doi = {10.1016/j.physletb.2016.06.054},
journal = {Physics Letters B},
number = C,
volume = 760,
place = {Netherlands},
year = {2016},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: https://doi.org/10.1016/j.physletb.2016.06.054

Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

Figures / Tables:

Figure 1 Figure 1: Neutrinos are emitted from a proto-neutron star through chiral transport effects parallel to the magnetic field $\vec B$ . (a) The general mechanism: each neutrino carries away the momentum $\vec P$i , producing a recoil $\vec P$ns = − ∑i $\vec P$i on the neutron star. (b) Illustrationmore » of the currents: J$\ell$≈0 but sizable J$\ell$5 means that left-handed lepton number flows opposite to the right-handed one. Only the (left-handed) neutrinos can escape through the crust.« less

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Works referencing / citing this record:

Numerical magneto-hydrodynamics for relativistic nuclear collisions
journal, November 2016


Anomaly-Induced Transport Phenomena from Imaginary-Time Formalism
journal, May 2019


Permanent mean spin source of the chiral magnetic effect in neutron stars
journal, June 2019


Chiral magnetohydrodynamic turbulence in core-collapse supernovae
journal, October 2018


Numerical magneto-hydrodynamics for relativistic nuclear collisions
journal, November 2016


Anomaly-Induced Transport Phenomena from Imaginary-Time Formalism
journal, May 2019


Magnetic fields in heavy ion collisions: flow and charge transport
journal, March 2020


Numerical magneto-hydrodynamics for relativistic nuclear collisions
text, January 2016

  • Inghirami, Gabriele; Del Zanna, Luca; Beraudo, Andrea
  • GSI Helmholtzzentrum fuer Schwerionenforschung, GSI, Darmstadt
  • DOI: 10.15120/gsi-2018-00460

Interacting fermions in rotation: chiral symmetry restoration, moment of inertia and thermodynamics
journal, January 2017


Correlations far from equilibrium in charged strongly coupled fluids subjected to a strong magnetic field
journal, September 2019

  • Cartwright, Casey; Kaminski, Matthias
  • Journal of High Energy Physics, Vol. 2019, Issue 9
  • DOI: 10.1007/jhep09(2019)072

Experimental signatures of the mixed axial–gravitational anomaly in the Weyl semimetal NbP
journal, July 2017

  • Gooth, Johannes; Niemann, Anna C.; Meng, Tobias
  • Nature, Vol. 547, Issue 7663
  • DOI: 10.1038/nature23005

Chiral vortical conductivity across a topological phase transition from holography
journal, December 2019


Effects of rotation and boundaries on chiral symmetry breaking of relativistic fermions
journal, May 2017


    Figures / Tables found in this record:

      Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.