Kinematic analysis and membership status of TWA22 AB R. Teixeira, C. Ducourant, G. Chauvin, A. Krone-Martins, M. Bonnefoy and I. Song A&A, 503 1 (2009) 281-285 Published online: 22 June 2009 DOI: 10.1051/0004-6361/200912173