Deep optical observations of the massive galaxy cluster Abell 1413 D. Castagné, G. Soucail, E. Pointecouteau, A. Cappi, S. Maurogordato, C. Benoist and C. Ferrari A&A, 548 (2012) A18 Published online: 13 November 2012 DOI: 10.1051/0004-6361/201116837