Plasma Leakage from the Centrifugal Magnetospheres of Magnetic B-Type   Stars
  Magnetic B-type stars are often host to Centrifugal Magnetospheres (CMs). Here we describe the results of a population study encompassing the full sample of known magnetic early B-type stars, focusing on those with detectable CMs. We present revised rotational and magnetic parameters for some stars, clarifying their positions on the rotation-confinement diagram, and? find that plasma densities within their CMs are much lower than those predicted by centrifugal breakout. 
Matt Shultz, Gregg Wade, Thomas Rivinius, Jason Grunhut, V\'eronique   Petit and the MiMeS Collaboration
astro-ph.SR