Table 3: Parameters of best-fitting King model (core radius, $r_{\rm c}$, tidal radius, $r_{\rm t}$), Sersic model (Sersic radius, $R_{\rm S}$, shape parameter, m), exponential model (scale radius, $r_{\rm s}$) and Plummer model (scale radius, b) for all stellar populations, intermediate age and old stellar components in Fornax dSph. For each model we also compute the half-number radius, $r_{\rm h}$; for the Plummer model this coincides with b. The errors in the parameters are formal errors from the fitting procedure.
  King Sersic Exponential Plummer
  $r_{\rm c}[']$ $r_{\rm t}[']$ $r_{\rm K,h}[']$ $R_{\rm S}[']$ m $r_{\rm S,h}[']$ $r_{\rm s}[']$ $r_{\rm Ex,h}[']$ b[']
All 17.6 $ \pm$ 0.2 69.1 $ \pm$ 0.4 19.1 17.3 $ \pm$ 0.2 0.71 $ \pm$ 0.01 18.6 11.0 $ \pm$ 0.1 18.5 19.6 $ \pm$ 0.1
Intermediate 15.7 $ \pm$ 0.2 68.5 $ \pm$ 0.4 18.1 16.7 $ \pm$ 0.2 0.69 $ \pm$ 0.01 17.5 10.0 $ \pm$ 0.1 16.7 17.1 $ \pm$ 0.1
Old 26.8 $ \pm$ 1.1 77.2 $ \pm$ 1.6 23.7 24.6 $ \pm$ 0.8 0.62 $ \pm$ 0.02 23.5 13.7 $ \pm$ 0.2 23.0 24.6 $ \pm$ 0.4


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