The relativistic time delay of the pulsar radiation in the non-stationary gravitational field of the globular clusters

Abstract

The propagation of electromagnetic signals of pulsars through the non-stationary gravitational field of the stellar globular clusters formed by an ensemble of arbitrarily distributed stars are discussed. The expression for the relativistic time delay of pulsars radiation in such fields are derived taking into account the negligible aberration corrections. The obtained results are considered in the application to the globular cluster NGC 104 (Tucanae 47) for the cases of the small and large impact parameters. © 2008 Springer-Verlag Berlin Heidelberg.