Abstract:
Pulsars are believed to be one of the most interesting objects in the universe. The emission mechanism of pulsars is
still a conundrum to physicists, as there is no completely acceptable theory that can establish a consensus between
theory and observation. Pulsars possess a gigantic magnetic field, to the order of 1012 Gauss, and generate a very
powerful radio beam from the magnetic pole. However, the powerful radio beam is generated by some complicated
coherent plasma processes and acceleration in the pulsar magnetosphere. The location of the origin of the radio
waves has been predicted to come out exclusively from the polar cap zone, whose boundary is defined by the
footprint of the last open field line. However, in this paper, we mainly try to generate the shape of the polar cap
structure from an analytical solution and discuss how it gets distorted for different geometrical parameters due to
the presence of perturbation such as polar cap current flow. Also, apart from that, we try to emphasize
understanding the variation of radio emission height and polarization angle with respect to different geometryrelated parameters as well as with frequency.
