Open AccessSURFACE GEOMETRY OF A KERR-NUT BLACK HOLE
Author(s) -
Wen-Chao Qiang
Publication year - 1992
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.41.1045
Subject(s) - event horizon , black hole (networking) , physics , nut , gaussian curvature , horizon , rotating black hole , circumference , white hole , event (particle physics) , geometry , curvature , quantum mechanics , mathematics , astronomy , computer science , acoustics , link state routing protocol , computer network , routing protocol , routing (electronic design automation)
In this article, the Gaussian curvature of the event horizon of a Kerr-NUT black hole is given. The effect of NUT parameter on the equatorial circumference and the polar circumference of the event horizon is analysed. The problem of embedding the surface in Euclidean 3-space is examined. It is shown that the event horizon of a Kerr-NUT black hole has the geometrical properties which other black holes do not porsess.