Resolving the stellar activity of the Mira AB binary with ALMA W. H. T. Vlemmings, S. Ramstedt, E. O’Gorman, E. M. L. Humphreys, M. Wittkowski, A. Baudry and M. Karovska A&A, 577 (2015) L4 Published online: 13 May 2015 DOI: 10.1051/0004-6361/201526186