Tightening the belt: Constraining the mass and evolution in SDC335 A. Avison, N. Peretto, G. A. Fuller, A. Duarte-Cabral, A. Traficante and J. E. Pineda A&A, 577 (2015) A30 Published online: 27 April 2015 DOI: 10.1051/0004-6361/201425041