Accretion of dark energy onto black holes


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Abstract

The stationary accretion of dark energy onto black holes is studied. General expressions are derived for the accretion rate of an ideal fluid with an arbitrary equation of state and for scalar fields. The black hole mass was found to decrease for the accretion of phantom energy with p + ρ < 0. We also study the back reaction of accreting matter onto the metrics of a black hole in a perturbative way. The general expressions for corrections to the metric coefficients are found.

About the authors

Eugeny O Babichev

Laboratoire de Physique Theorique d’Orsay, Université Paris-Sud 11

Email: eugeny.babichev@th.u-psud.fr
(Ph. D. (Phys. & Math.)), Researcher 210, Bâtiment, Orsay Cedex, F-91405, France

Viacheslav I Dokuchaev

Institute for Nuclear Research, Russian Academy of Sciences

Email: dokuchaev@lngs.infn.it
(Dr. Sci. (Phys. & Math.)), Leading Researcher 7a, 60th October Anniversary Prospect, Moscow, 117312, Russia

Yury N Eroshenko

Institute for Nuclear Research, Russian Academy of Sciences

Email: eroshenko@inr.ac.ru
(Ph. D. (Phys. & Math.)), Researcher 7a, 60th October Anniversary Prospect, Moscow, 117312, Russia

References

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  4. Babichev E., Dokuchaev V., Eroshenko Yu. Black Hole Mass Decreasing due to Phantom Energy Accretion // Phys. Rev. Lett., 2004. Vol. 93, no. 2, 021102. 4 pp.
  5. Бабичев Е. О., Докучаев В. И., Ерошенко Ю. Н. Аккреция темной энергии на черную дыру // ЖЭТФ, 2005. Т. 127, № 3. С. 597–609.
  6. Babichev E., Dokuchaev V., Eroshenko Yu. Backreaction of accreting matter onto a black hole in the Eddington–Finkelstein coordinates // Class. Quantum Grav., 2012. Vol. 29, no. 11, 115002, arXiv: 1202.2836 [gr-qc].

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