Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996mnras.282..845k&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 282, Issue 3, pp. 845-852.
Astronomy and Astrophysics
Astronomy
1
Magnetic Fields, Stars: Evolution, Stars: Magnetic Fields, Stars: Neutron, Pulsars: General
Scientific paper
The phenomenological two-component dynamical model of the magnetic field of neutron stars, first developed by Cummings, Dixon & Kaus, is replaced by a physically more realistic three-component model, and its principles are directly applied to a typical neutron star with solid crust-superfluid, interior-solid core structure. The cooling of the star via neutrino emission is shown to be responsible for the evolution of the dynamics of its magnetic field through three distinct phases, one of which is the `pulsar phase'. According to this new model, a much shorter lifetime of pulsars (~5x10^5 yr) is seen to offer a possible resolution to the problem of pulsar turn-off at long periods. The long-standing problem of `missing pulsars' and the phenomenon of `delayed pulsar onset' in type II supernovae (SNe II) are also successfully addressed.
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