Linear polarization in forbidden lines of the T Tauri star RY Tauri H. Akitaya, Y. Ikeda, K. S. Kawabata, K. Matsuda, A. Okazaki and M. Seki A&A, 499 1 (2009) 163-173 Published online: 19 March 2009 DOI: 10.1051/0004-6361/200811275