Stars: early-type 7 Stars: mass-loss 7 Stars: winds, outflows 7 Ionization 6 Stars: rotation 6 Hydrodynamics 4 Methods: analytical 4 Analytical - stars 3 Astronomy 3 Astrophysics 3 Bifurcation (mathematics) 3 Differential equations 3 Early-type - stars 3 Galaxies 3 Interplanetary spacecraft 3 Mass-loss - stars 3 Mathematical models 3 Optical bistability 3 Outflows 3 Parameter estimation 3 Radiation 3 Radiation effects 3 Rotation - stars 3 Stars:early-type 3 Stars:mass-loss 3 Stars:rotation 3 Stars:winds, outflows 3 Temperature measurement 3 Topology 3 Velocity measurement 3