The constant magnetic field of xi 1 CMa: geometry or slow rotation?
arXiv:1009.3565 · doi:10.1017/S1743921311010234
Abstract
We report recent observations of the sharp-lined magnetic beta Cep pulsator xi 1 CMa (= HD 46328). The longitudinal magnetic field of this star is detected consistently, but it is not observed to vary strongly, during nearly 5 years of observation. In this poster we evaluate whether the nearly constant longitudinal field is due to intrinsically slow rotation, or rather if the stellar or magnetic geometry is responsible.