Spatial Distribution of Pulsars and Supernova Remnants

Abstract

We show that the burst of Type I supernovas occurs about 108 years after the birth of the progenitor. This duration results in the main by the delay of the burst after the formation of a white dwarf of about one solar mass in a close binary system. The mass of the main component of this system is about 8M0 , and the mass of the secondary about 3M0 . These stars complete their evolution as Type I supernovas and are distributed along the galactic plane. Pulsars are formed about 107 years after the birth of their progenitors, and are accompanied by a Type II supernova. Pulsars therefore have an annular distribution in the Galaxy.