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    • Keywords


      Pulsars; supernova remnants; magnetic window

    • 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.

    • Author Affiliations


      V. Radhakrishnan1 G. Srinivasan1

      1. Raman Research institute, Bangalore - 560080
    • Dates

  • Journal of Astrophysics and Astronomy | News

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      Posted on January 27, 2016

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