Click here to view fulltext PDF

Permanent link:
https://www.ias.ac.in/article/fulltext/pram/008/01/0014-0021

General relativity; radiation; white holes

Unlike the Schwarzschild white hole, Nordström and Kerr-Newman white holes cannot explode right down from the space time singularityR=0. For example a charged white hole has to commence explosion (i.e., comes into existence) with a radiusR₀=R_c(2−R_c/R_b)⁻¹ whereR_c is the ‘classical radius’ andR_b is the final radius attained when the stationary state is reached. That means charged and rotating black holes also cannot hit the singularityR=0 and perish.

Here the explosion is decelerated by the presence of charge and rotation and hence the radiation emitted would be not as energetic as in the Schwarzschild case where its energy is infinitely large for emission fromR=0.

Naresh Dadhich¹

1. Department of Mathematics and Statistics, University of Poona, Poona - 411007

Published

January 1977

Manuscript received

24 July 1976

Manuscript revised

20 September 1976