Accretion processes in magnetically and tidally perturbed Schwarzschild black holes

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Abstract

We study the accretion process in the region of the Preston-Poisson space-time describing a Schwarzschild black hole perturbed by an asymptotically uniform magnetic field and axisymmetric tidal structures. We find that the accretion disk shrinks and the marginally stable orbit shifts toward the black hole with the perturbation. The radiation intensity of the accretion disk increases, while the radius where radiation is maximal remains unchanged. The spectrum is blue-shifted. Finally, the conversion efficiency of accreting mass into radiation is decreased by both the magnetic and the tidal perturbations.

Original languageEnglish
Article number024018
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume84
Issue number2
DOIs
Publication statusPublished - Jul 13 2011

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ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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