Evidence for disc regulation in NGC 2264

Whether disc regulation also extends to stars with later spectral types still remains a matter of debate. Here, we present a star-disc interaction study in a sample of over 180 stars with spectral types M3 and later (corresponding to stellar masses <=0.3M_{sun}_) in young stellar cluster NGC 2264.

Combining rotation periods from the literature, new and literature spectral types, and newly presented deep Spitzer observations, we show that stars with masses below 0.3M_{sun}_ with discs also rotate slower than stars without a disc in the same mass regime. Our results demonstrate that disc regulation still operates in these low-mass stars, although the efficiency of this process might be lower than in higher mass objects.