Astrophysical parameters of the peculiar X-ray transient IGR J11215−5952 J. Lorenzo, I. Negueruela, N. Castro, A. J. Norton, F. Vilardell and A. Herrero A&A, 562 (2014) A18 Published online: 31 January 2014 DOI: 10.1051/0004-6361/201321913