On the Possible Genetic Relation of Single Radio Pulsars with the Known Supernova Remnants

Abstract

The values of proper motions and distances for 21 radio pulsars with age of τ < 10⁵ years and distances to the known supernova remnants (SNRs) to search for the possible genetic relation between these objects have been used. It has been shown that the distributions of pulsar velocities V_trans for pulsars with τ < 10⁵ years and τ > 10⁵ years and mean values of V_trans in these samples do not differ significantly. This means that the gravitational potential of Galaxy and the interstellar medium do not affect significantly the movement of pulsars. Angular distances of pulsars from their expected parent SNRs have been estimated. For 20 pulsars with age of τ < 10⁵ years, the possible native SNRs have been found. The associations with SNRs have been indicated already for 13 of them in the ATNF catalog. For seven radio pulsars, such associations have been found for the first time.