Starspots on the fastest rotators in the β Pictoris moving group D. García-Alvarez, A. F. Lanza, S. Messina, J. J. Drake, F. van Wyk, R. R. Shobbrook, C. J. Butler, D. Kilkenny, J. G. Doyle and V. L. Kashyap A&A, 533 (2011) A30 Published online: 24 August 2011 DOI: 10.1051/0004-6361/201116646