Journal of Astrophysics and Astronomy

, Volume 20, Issue 3–4, pp 259–268 | Cite as

Some aspects of four-dimensional black hole solutions in gauss-bonnet extended string gravity

  • S. O. Alexeyev
  • M. V. Sazhin


An internal singularity of a string four-dimensional black hole with second order curvature corrections is investigated. A restriction to a minimal size of a neutral black hole is obtained in the frame of the model considered. Vacuum polarization of the surrounding space-time caused by this minimal-size black hole is also discussed.

Key words

Black holes string theory higher order curvature corrections 


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Copyright information

© Indian Academy of Sciences 1999

Authors and Affiliations

  • S. O. Alexeyev
    • 1
  • M. V. Sazhin
    • 1
  1. 1.Moscow State University Universitetskii Prospect, 1320 Sternberg Astronomical InstituteMoscowRussia

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