Angular Momentum Evolution of Young Stars in the Nearby Scorpius-Centaurus OB Association

We report the results of a study of archival SuperWASP light curves for stars in Scorpius-Centaurus (Sco-Cen), the nearest OB association. We use SuperWASP time-series photometry to extract rotation periods for 189 candidate members of the Sco-Cen complex, and verify that 162 of those are members of the classic Sco-Cen subgroups of Upper Scorpius (US), Upper Centaurus-Lupus (UCL), and Lower Centaurus-Crux (LCC). This study provides the first measurements of rotation periods explicitly for large samples of pre-main sequence (pre-MS) stars spanning the UCL and LCC subgroups. Our final sample of 157 well-characterized pre-MS stars spans ages of \(\sim\) 10 -- 20 Myr, spectral types of \(\sim\) F3 -- M0, and masses of \(M \simeq\) 0.3 -- 1.5 \(\mathcal{M}^{\rm N}_{\odot}\). For this sample, we find a distribution of stellar rotation periods with a median of \(P_{\textrm{rot}} \simeq\) 2.4 days, overall range of 0.2 \(