Paper:	Pulsars and Supernova Remnants
Volume:	342, 1604-2004: Supernovae as Cosmological Lighthouses
Page:	422
Authors:	Chevalier, R.A.
Abstract:	Massive star supernovae can be divided into four categories depending on the amount of mass loss from the progenitor star and the star's radius. Various aspects of the immediate aftermath of the supernova are expected to develop in different ways depending on the supernova category: mixing in the supernova, fallback on the central compact object, expansion of any pulsar wind nebula, interaction with circumstellar matter, and photoionization by shock breakout radiation. s for observed young pulsar wind nebulae expanding into supernova ejecta indicate initial pulsar periods of 10—100 ms and approximate equipartition between particle and magnetic energies. Considering both pulsar nebulae and circumstellar interaction, the observed properties of young supernova remnants allow many of them to be placed in one of the supernova categories; the major categories are represented. The pulsar properties do not appear to be related to the supernova category.

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