Abstract

In this research, the study of dynamical aspect of the crab shell, using assumption such as energy conservation in the nebula system, exiting of hydrogen gas all around the nebula and time dependant acceleration of expansion is assessed. We could found a relation for the velocity of expansion by drawing the graph of velocity, the initial velocity of expansion is calculated to be v (0) = 196059 m/s. Finally we have shown that the time relation of acceleration is much better with respect to constant acceleration for analyzing the expansion of the crab nebula.

Key words: Neutron star, pulsar, expansion of crab nebula, energy conservation.