Fig. 10.
Radial surface density of Patchick 99 (black points), taking into consideration only PM- selected member stars. The coloured lines are King model profiles that best reproduce observational data, with a fixed value of the tidal radius of 10′ and different values of core radius, in cyan rc = 1.8′, in red rc = 1.5′, and in blue rc = 1.2′ Poisson errors are shown as error bars.
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