Constraints on the disk geometry of the T Tauri star AA Tau from linear polarimetry F. Ménard, J. Bouvier, C. Dougados, S. Y. Mel'nikov and K. N. Grankin A&A, 409 1 (2003) 163-167 Published online: 17 November 2003 DOI: 10.1051/0004-6361:20030936