Terrien, Ryan C.Mahadevan, SuvrathDeshpande, RohitBender, Chad F.Cargile, Phillip A.Hearty, Frederick R.Cottaar, MichielJackson, Kelly M.2014-09-192014-09-192014-01-282014-01-280004-637Xhttp://hdl.handle.net/10735.1/4027We have used Sloan Digital Sky Survey-III (SDSS-III) Apache Point Observatory Galactic Evolution Experiment (APOGEE) radial velocity observations in the near-infrared H-band to explore the membership of the nearby (86.7 ± 0.9 pc) open cluster Coma Berenices (Melotte 111), concentrating on the poorly populated low-mass end of the main sequence. Using SDSS-III APOGEE radial velocity measurements, we confirm the membership of eight K/M dwarf members, providing the first confirmed low-mass members of the Coma Berenices cluster. Using R similar to 2000 spectra from IRTF-SpeX, we confirm the independently luminosity classes of these targets, and find their metallicities to be consistent with the known solar mean metallicity of Coma Berenices and of M dwarfs in the solar neighborhood. In addition, the APOGEE spectra have enabled measurement of v sin i for each target and detection for the first time of the low-mass secondary components of the known binary systems Melotte 111 102 and Melotte 111 120, as well as identification of the previously unknown binary system 2MASS J12214070+2707510. Finally, we use Kilodegree Extremely Little Telescope photometry to measure photometric variability and rotation periods for a subset of the Coma Berenices members.en©2014 The American Astronomical SocietyComa Berenices (Callimachus)Apache Point Observatory Galactic Evolution Experiment (APOGEE)Stars--ClustersDouble starsSloan Digital Sky Survey-III (SDSS-III)articleTerrien, Ryan C., Suvrath Mahadevan, Rohit Deshpande, Chad F. Bender, et al. 2014. "New red jewels in Coma Berenices." Astrophysical Journal 782(61): 1-12.782261