Detection of a centrifugal magnetosphere in one of the most massive stars in the $\rho$ Oph star-forming cloud

S. Hubrig, M. Schöller, S. P. Järvinen +3

Recent XMM-Newton observations of the B2 type star rho Oph A indicated a periodicity of 1.205d, which was ascribed to rotational modulation. Since variability of X-ray emission in…