General Relativistic Collapse of Axially Symmetric Stars Leading to the Formation of Rotating Black Holes

Numerical calculations have been made for the formation process of axisymmetric, rotating black holes of 10M0. The initial density of a star is about 3x 10 13 g/ cm'. Numerical results ) suggested that a naked singularity may appear in a prolate collapse if the initial quadrupole moment is large enough. These results tell us that naked singularity may appear in the realistic collapse of a star under a certain initial condition.