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Fig. 6


Left panel: period distributions inferred separately for the populations of disk-free young stars (WTTS; blue) and disk-bearing objects (CTTS; red) in NGC 2264, probed in this study. Only periods comprised between 0 d and 13 d are shown here; in addition, only objects with single periodicity and with an associated WTTS/CTTS flag in Venuti et al. (2014) are considered to build the histogram. The error bars trace the Poissonian uncertainty computed on each histogram bin. Right panel: period distribution of NGC 2264 members as a function of stellar mass. The sample investigated for periodicity in this study is separated into three different mass bins: M < 0.4 M (upper panel), M comprised between 0.4 M and 1 M (middle panel), M > 1 M (lower panel). In the latter, the period distribution of objects with M > 1.4 M is highlighted further as a superimposed histogram hatched in red.

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