New insights on the AU-scale circumstellar structure of FU Orionis F. Malbet, R. Lachaume, J.-P. Berger, M. M. Colavita, E. Di Folco, J. A. Eisner, B. F. Lane, R. Millan-Gabet, D. Ségransan and W. A. Traub A&A, 437 2 (2005) 627-636 Published online: 21 June 2005 DOI: 10.1051/0004-6361:20042556