The seven sisters DANCe - IV. Bayesian hierarchical model J. Olivares, L. M. Sarro, E. Moraux, A. Berihuete, H. Bouy, S. Hernández-Jiménez, E. Bertin, P. A. B. Galli, N. Huelamo, J. Bouvier and D. Barrado A&A, 617 (2018) A15 Published online: 18 September 2018 DOI: 10.1051/0004-6361/201730972