Pulsar activity and the morphology of supernova remnants |
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Authors: | V. Radhakrishnan G. Srinivasan |
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Affiliation: | (1) Raman Research institute, 560080 Bangalore |
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Abstract: | We use the recently introduced concept of a ‘window’ of magnetic field strengths in which pulsars can be active to explain the variation in morphology of supernova remnants. The striking difference between shell-type and filled-type remnants is attributed to differences in he magnetic field strengths of the neutron stars left by the respective Supernovae. Field strengths of a value permitting pulsar activity result in particle production and Crab-like centrally concentrated remnants. Other field values lead to strong magnetic dipole radiation and consequent shell formation (e.g. Cas A). Several apparent inconsistencies concerning pulsar-supernova associations appear to find a logical explanation on the basis of this hypothesis. |
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Keywords: | Pulsars supernova remnants magnetic window |
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