Original scientific paper
Structure of radial null geodesics in monopole-charged Vadya spacetime
S. S. Zade
; Department of Mathematics, J. B. College of Science, Wardha (M. S.), India
K. D. Patil
; Department of Mathematics, B. D. College of Engineering, Sewagram, Wardha (M. S.), India
P. N. Mulkalwar
; Department of Computer Science, Amolakchand Mahavidyalaya, Yavatmal (M. S.), India
Abstract
The monopole-charged Vaidya model containing a naked singularity is analyzed for outgoing radial null geodesics. Using the Clarke and Krolak criteria, the curvature strength of naked singularity is examined to show that this is a strong curvature singularity, providing a counter example to cosmic censorship hypothesis (CCH). The graphs of the apparent horizons for different values of parameters have been drawn. An interesting feature which emerges is that, the monopole component pushes the apparent horizon towards the radial axis and thereby increases the radius of the apparent horizon in Vaidya collapse.
Keywords
cosmic censorship; naked singularity; gravitational collapse
Hrčak ID:
304909
URI
Publication date:
2.11.2008.
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