The observational evidence pertinent to possible kick mechanisms in neutron stars

We examine available observations on pulsars for evidence pertaining to mec hanisms proposed to explain the origin of their velocities. We find that me chanisms predicting a correlation between the rotation axis and the pulsar velocity are ruled out. Also, that there is no significant correlation betw een pulsar magnetic field strengths and velocities. With respect to recent suggestions postulating asymmetric impulses at birth being solely responsib le for both the spins and velocities of pulsars, single impulses of any dur ation and multiple extended duration impulses appear ruled out.