A Research on the Relation between the Widths of Core and Cone Components of Pulsars.

Abstract: The central and outer components from the radiation beam of a pulsar are called the core and cone components, respectively. It was found in some early researches that a proportion of 0.7 exists between the widths of core and cone components of pulsars. 33 pulsars with significant core and cone components are selected to verify it. The component separations are made by fitting the integrated pulse profiles of these pulsars with Gaussian functions, so as to obtain the widths and errors of all the core and cone components. The relation between the widths of core and cone components is investigated for the triple-peaked and quintuple-peaked pulsars, respectively. We find that there are no significant differences between the widths of core and cone components, the proportion of between the widths of core and cone components that reported by previous studies does not exist. [Copyright &y& Elsevier]