A New Look at an Old Cluster: The Membership, Rotation, and Magnetic Activity of Low-mass Stars in the 1.3 Gyr Old Open Cluster NGC 752

  title={A New Look at an Old Cluster: The Membership, Rotation, and Magnetic Activity of Low-mass Stars in the 1.3 Gyr Old Open Cluster NGC 752},
  author={Marcel A. Ag{\"u}eros and Emily C. Bowsher and J. J. Bochanski and P. A. Cargile and Kevin R. Covey and Stephanie T. Douglas and A. Kraus and A. Kundert and Nicholas M. Law and A. Ahmadi and H{\'e}ctor G. Arce},
  journal={The Astrophysical Journal},
The nearby open cluster NGC 752 presents a rare opportunity to study stellar properties at ages >1 Gyr. However, constructing a membership catalog for it is challenging; most surveys have been limited to identifying its giants and dwarf members earlier than mid-K. We supplement past membership catalogs with candidates selected with updated photometric and proper-motion criteria, generating a list of 258 members, a >50% increase over previous catalogs. Using a Bayesian framework to fit MESA… Expand
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