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Extreme resonance line profile variations in the ultraviolet spectra of NGC 1624-2: probing the giant magnetosphere of the most strongly magnetized known O-type star
A. David-Uraz, C. Erba, V. Petit +12
In this paper, we present high-resolution HST/COS observations of the extreme magnetic O star NGC 1624-2. These represent the first ultraviolet spectra of this archetypal object. W…
Disruption of circumstellar discs by large-scale stellar magnetic fields
Asif ud-Doula, Stanley Owocki, Nathaniel Kee
Spectropolarimetric surveys reveal that 8-10\% of OBA stars harbor large-scale magnetic fields, but thus far no such fields have been detected in any classical Be stars. Motivated…
Co-existence and switching between fast and -slow wind solutions in rapidly rotating massive stars
Ignacio Araya, Michel Curé, Asif ud-Doula +2
Most radiatively-driven massive star winds can be modelled with m-CAK theory resulting in so called fast solution. However, those most rapidly rotating among them, especially when…