The mass content of the Sculptor dwarf spheroidal galaxy
  We present a new determination of the mass content of the Sculptor dwarf spheroidal galaxy, based on a novel approach which takes into account the two distinct stellar populations present in this galaxy. This method helps to partially break the well-known mass-anisotropy degeneracy present in the modelling of pressure-supported stellar systems. 
G. Battaglia, A. Helmi, E. Tolstoy, M. Irwin