... parameter''

The explicit functional form of $n(\omega_{\rm s})$ is given by Eq. (7) in Ghosh & Lamb (1979b).

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... cases

Note that Ghosh & Lamb (1979b) showed that steady state accretion might not be allowed in their model for $\omega_{\rm c} \ga0.95$.

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...1997

``Torqueless accretion'' (Li et al. 1996; Li & Wickramasinghe 1997) was not considered here since that mechanism is unlikely to be applicable to accretion powered X-ray pulsars (Wang 1997b; Romonova et al. 2002).

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