The BDKP. VI. Radial & rot. vel. from APOGEE

We present precise measurements of radial (RV) and projected rotational (vsini) velocities of a sample of 258 M6 to L2 dwarfs with multiepoch, high-resolution ({lambda}/{Delta}{lambda}=22500), near-infrared (1.514-1.696{mu}m) spectroscopic observations reported in the Apache Point Observatory Galactic Evolution Experiment Data Release 17. The spectra were modeled using a Markov Chain Monte Carlo forward-modeling method, which achieved median precisions of {sigma}_RV_=0.4km/s and {sigma}_vsini_=1.1km/s.

One-half of our sample (138 sources) are previously known members of nearby young clusters and moving groups, and we identified three new kinematic members of the Argus or Carina Near moving groups, 2MASS J05402570+2448090, 2MASSJ14093200+4138080, and 2MASS J21272531+5553150. Excluding these sources, we find that the majority of our sample have kinematics consistent with the Galactic thin disk, and 11 sources are associated with the intermediate thin/thick disk.