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In the pre-main-sequence stage, star-disc interactions have been shown toremove stellar angular momentum and regulate the rotation periods of stars withM2 and earlier spectral types. Whether disc regulation also extends to starswith later spectral types still remains a matter of debate. Here we present astar-disc interaction study in a sample of over 180 stars with spectral typesM3 and later (corresponding to stellar masses $\leq 0.3 M_\odot$) in youngstellar cluster NGC 2264. Combining rotation periods from the literature, newand literature spectral types, and newly presented deep Spitzer observations,we show that stars with masses below 0.3 $M_\odot$ with discs also rotateslower than stars without a disc in the same mass regime. Our resultsdemonstrate that disc-regulation still operates in these low-mass stars,although the efficiency of this process might be lower than in higher-massobjects. We confirm that stars with spectral types earlier and later than M2have distinct period distributions and that stars with spectral types M5 andlater rotate even faster M3 and M4-type stars.

Evidence for disc regulation in the lowest-mass stars of the young stellar cluster NGC 2264