Kazan (Volga region) Federal University, KFU
KAZAN
FEDERAL UNIVERSITY
 
WHAT HAPPENS TO PETROV CLASSIFICATION, ON HORIZONS OF AXISYMMETRIC DIRTY BLACK HOLES
Form of presentationArticles in international journals and collections
Year of publication2014
Языканглийский
  • Zaslavskiy Oleg Borisovich, author
  • Bibliographic description in the original language I. V. Tanatarov and O. B. Zaslavskii, What happens to Petrov classification, on horizons of axisymmetric dirty black holes J. Math. Phys. 55, 022502 (2014).
    Annotation We consider axisymmetric stationary dirty black holes with regular non-extremal or extremal horizons, and compute their on-horizon Petrov types. The Petrov type (PT) in the frame of the observer crossing the horizon can be different from that formally obtained in the usual (but singular in the horizon limit) frame of an observer on a circular orbit.We call this entity the boosted Petrov type (BPT), as the corresponding frame is obtained by a singular boost from the regular one. The PT off-horizon can be more general than PT on-horizon and that can be more general than the BPT on horizon. This is valid for all regular metrics, irrespective of the extremality of the horizon. We analyze and classify the possible relations between the three characteristics and discuss the nature and features of the underlying singular boost. The three Petrov types can be the same only for space-times of PT D and O off-horizon.
    Keywords Petrov types, black hole, horizon
    The name of the journal Journal of Mathematical Physics
    URL http://aip.scitation.org/doi/10.1063/1.4865995
    Please use this ID to quote from or refer to the card https://repository.kpfu.ru/eng/?p_id=159590&p_lang=2

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