A Search for Cool Subdwarfs: Stellar Parameters for 134 Candidates

The results of a search for cool subdwarfs are presented. Kinematic ( U , V , and W ) and stellar parameters ( T eff , log g , [Fe/H], and ξ t ) are derived for 134 candidate subdwarfs based on high‐resolution spectra. The observed stars span 4200 K < T eff < 6400 K and −2.70 < [Fe/H] < 0.25 including only eight giants (log g < 4.0). Of the sample, 100 stars have MgH bands present in their spectra. The targets were selected by their large reduced proper motion, by the offset from the solar‐metallicity main sequence, or from the literature. We confirm the claims made by Ryan that the NLTT catalog is a rich source of subdwarfs and verify the success of the reduced proper‐motion constraint in identifying metal‐poor stars.