Stars: early-type Stars: mass-loss 10 Stars: winds, outflows 10 Ionization 8 Stars: rotation 8 Hydrodynamics 6 Methods: analytical 6 Analytical - stars 4 Astronomy 4 Astrophysics 4 Bifurcation (mathematics) 4 Differential equations 4 Early-type - stars 4 Galaxies 4 Interplanetary spacecraft 4 Mass-loss - stars 4 Mathematical models 4 Optical bistability 4 Outflows 4 Parameter estimation 4 Radiation 4 Radiation effects 4 Rotation - stars 4 Stars:early-type 4 Stars:mass-loss 4 Stars:rotation 4 Stars:winds, outflows 4 Temperature measurement 4 Topology 4 Velocity measurement 4