SURFACE GEOMETRY OF A KERR-NUT BLACK HOLE

QIANG WEN-CHAO

doi:10.7498/aps.41.1045

Abstract
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.
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QIANG WEN-CHAO

1.
西安冶金建筑学院基础课部,西安710055
References

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[15]	LIU WEN-BIAO, LI XIANG. FROM SCHWARZSCHILD BLACK HOLE TO KERR-NEWMAN BLACK HOLE. Acta Physica Sinica, 1999, 48(10): 1793-1799. doi: 10.7498/aps.48.1793
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[18]	QIANG WEN-CHAO. SURFACE GEOMETRY OF TWO SCHWARZSCHILD BLACK HOLES. Acta Physica Sinica, 1992, 41(12): 1913-1918. doi: 10.7498/aps.41.1913
[19]	Huang Chao-guang, Wang Yong-cheng. SPACE-TIME STRUCTURE OF THE SUPERPOSITION OF TWO CO-LINEAR KERR BLACK HOLES'METRICS. Acta Physica Sinica, 1986, 35(10): 1322-1329. doi: 10.7498/aps.35.1322
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Vol. 41, Issue 7 - 1992-04-05

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