General static spherically symmetric solutions in Hořava gravity

Dario Capasso and Alexios P. Polychronakos
Phys. Rev. D 81, 084009 – Published 2 April 2010

Abstract

We derive the equations describing a general static spherically symmetric configuration for the softly broken Hořava gravity introduced by A. Kehagias and K. Sfetsos with nonzero shift field and no-projectability condition. These represent “hedgehog” versions of black holes with radial “hair” arising from the shift field. For the case of the standard de Witt kinetic term (λ=1) there is an infinity of solutions that exhibit a deformed version of reparametrization invariance away from the general relativistic limit. Special solutions also arise in the anisotropic conformal point λ=13. Moreover we obtain an implicit general expression for the solutions with Nr=0 and generic λ. In this context we study the presence of horizons for standard matter and the related Hawking temperature, generalizing the corresponding relations in the usual static spherically symmetric case.

  • Received 9 December 2009

DOI:https://doi.org/10.1103/PhysRevD.81.084009

©2010 American Physical Society

Authors & Affiliations

Dario Capasso* and Alexios P. Polychronakos

  • Physics Department, City College of the City University of New York, 160 Convent Avenue, New York, New York 10031, USA

  • *dcapass00@ccny.cuny.edu
  • alexios@sci.ccny.cuny.edu

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Issue

Vol. 81, Iss. 8 — 15 April 2010

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