Statistics – Computation
Scientific paper
Apr 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...327..723a&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 327, April 15, 1988, p. 723-725.
Statistics
Computation
78
Dense Plasmas, Neutron Stars, Stellar Composition, Stellar Cores, Stellar Interiors, Stellar Rotation, Charged Particles, Computational Astrophysics, Electron Scattering, Moments Of Inertia, Stellar Magnetic Fields
Scientific paper
Some implications of earlier work on the coupling of a neutron star's superfluid core to its crust are clarified. It is shown that the very short time, tauv, for the relaxation of relative velocity between the plasma interior (protons and electrons) and the neutron vortices implies a time scale taud = tauv (rho/rhoc) for the coupling of the neutron star's core superfluid to the crust where rho(rhoc) is the total (charged) fluid density. One consequence of such a short coupling time is that free precession of a neutron star, as is suggested for the 35-day mode of Her X-1, must be continuously excited, as it would otherwise be damped out in 400-10,000 precession periods.
Ali Alpar M.
Sauls J. A.
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