The constant magnetic field of ξ<sup>1</sup> CMa: geometry or slow rotation?
The constant magnetic field of ξ<sup>1</sup> CMa: geometry or slow rotation?
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 …