Investigating the origin of cyclical wind variability in hot, massive stars – I. On the dipolar magnetic field hypothesis★
Investigating the origin of cyclical wind variability in hot, massive stars – I. On the dipolar magnetic field hypothesis★
OB stars exhibit various types of spectral variability associated with wind structures, including the apparently ubiquitous discrete absorption components (DACs). These are proposed to be caused by either magnetic fields or non-radial pulsations. In this paper, we evaluate the possible relation between large-scale, dipolar magnetic fields and the DAC phenomenon …