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Using the caustic method, we identify the member stars of five dwarfspheroidal (dSph) galaxies of the Milky Way, the smallest dark matter (DM)dominated systems in the Universe. After our interloper rejection, we computeline-of-sight velocity dispersion profiles that are substantially smoother thanprevious results. Moreover, two dSphs have line-of-sight velocity dispersions20% smaller than previous calculations suggested. Our Jeans modelling confirmsthat the DM content interior to 300pc is roughly constant with satelliteluminosity. Finally, if we assume that MOND provides the true law of gravity,our identification of interlopers implies that four dSphs have mass-to-lightratios in agreement with stellar population synthesis models, whereas Carinastill has a mass-to-light ratio a factor of two too large and remains a problemfor MOND.

Implications for dwarf spheroidal mass content from interloper removal