Pulsar reenergization of old supernova remnant shells

Astronomy and Astrophysics – Astronomy

Scientific paper

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Pulsars, Stellar Envelopes, Supernova Remnants, Accretion Disks, Emission Spectra, Infrared Astronomy Satellite, Stellar Evolution, Stellar Magnetic Fields, X Ray Sources

Scientific paper

The morphology of several unusual composite remnants are suggested to be affected by previously unrecognized interactions between high-velocity pulsars and old SNR shells, and the case of CTB 80 is pointed out as a likely example of such interactions. The interactions generate a new class of 'composite remnants' and furnish a novel method for the derivation of kinematic distances and SNR ages; this technique is noted to be especially useful when the pulsar has a measured spindown age or proper motion. It is predicted that a number of pulsars may interact with 80-100 pc radius 'superbubbles' produced by the combined action of winds and supernovae in OB associations.

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