Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990mnras.246..315j&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Vol. 246, NO.2/SEP15, P. 315, 1990
Astronomy and Astrophysics
Astronomy
29
Scientific paper
Recent calculations of the resistive force produced by interaction with the nuclear lattice have shown that neutron vortices in a pulsar can move in approximate corotation with the neutron-drip superfluid. The recovery of the spin-down rate observed in PSR 0355+54 and 0833-45 has a straightforward explanation if the vortices in a large fraction of the neutron-drip crust are not pinned. The processes connecting relaxation time with internal temperature are summarized: they are completely different from those in the theory of Alpar et al. The resistive force per unit length of vortex, derived from the fitted relaxation times, is approximately independent of pulsar age. If existing calculations of the temperature-dependent part of the resistive force give the correct order of magnitude, the age-independence of the force is not consistent with standard models of the cooling of PSR 0531+21 and 0833-45.
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