Pulsar activity and the morphology of supernova remnants

Radhakrishnan, V. ; Srinivasan, G. (1980) Pulsar activity and the morphology of supernova remnants Journal of Astrophysics and Astronomy, 1 (1). pp. 25-32. ISSN 0250-6335

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Official URL: http://www.ias.ac.in/jarch/jaa/1/25-32.pdf

Related URL: http://dx.doi.org/10.1007/BF02727947


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.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Pulsars; Supernova Remnants; Magnetic Window
ID Code:40765
Deposited On:25 May 2011 05:43
Last Modified:17 May 2016 22:43

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