ud-Doula and Owocki (2001) have performed MHD simulations of
magnetically channelled winds: Equatorward flow inside closed field lines and associated strong
shocks are seen.
y-component of velocity
But
the large x-ray luminosities and hard x-ray spectra already argue against
instability-generated shocksÉ
Éand suggest that a hybrid wind-magnetic
model might be appropriate, especially on q1 Ori C, on which an 1100 G dipole field has been
discovered