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Neutron stars in Einstein-aether theory

Christopher Eling1,*, Ted Jacobson1,†, and M. Coleman Miller2,‡

  • 1Department of Physics, University of Maryland, College Park, Maryland 20742-4111, USA
  • 2Department of Astronomy, University of Maryland, College Park, Maryland 20742-4111, USA

  • *cteling@physics.umd.edu
  • †jacobson@umd.edu
  • ‡miller@astro.umd.edu
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Phys. Rev. D 76, 042003 – Published 17 August, 2007Erratum Phys. Rev. D 80, 129906 (2009)

DOI: https://doi.org/10.1103/PhysRevD.76.042003

Abstract

As current and future experiments probe strong gravitational regimes around neutron stars and black holes, it is desirable to have theoretically sound alternatives to general relativity against which to test observations. Here we study the consequences of one such generalization, Einstein-aether theory, for the properties of nonrotating neutron stars. This theory has a parameter range that satisfies all current weak-field tests. We find that within this range it leads to lower maximum neutron star masses, as well as larger surface redshifts at a particular mass, for a given nuclear equation of state. For nonrotating black holes and neutron stars, the innermost stable circular orbit is only slightly modified in this theory.

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Erratum

Erratum: Neutron stars in Einstein-Aether theory [Phys. Rev. D 76, 042003 (2007)]

Christopher Eling, Ted Jacobson, and M. Coleman Miller
Phys. Rev. D 80, 129906 (2009)

Article Text

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Outline

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Phys. Rev. D 76, 042003– Published 17 August, 2007
  • Received 16 May 2007

© 2007 American Physical Society

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