The Open Cluster Chemical Abundances and Mapping Survey: V. Chemical
  Abundances of CTIO/Hydra Clusters using The Cannon
  Open clusters are key chemical and age tracers of Milky Way evolution. While
open clusters provide significant constraints on galaxy evolution, their use
has been limited due to discrepancies in measuring abundances from different
studies. We analyze medium resolution (R~19,000) CTIO/Hydra spectra of giant
stars in 58 open clusters using The Cannon to determine [Fe/H], [Mg/Fe],
[Si/Fe], [Al/Fe], and [O/Fe]. This work adds an additional 55 primarily
southern hemisphere open clusters calibrated to the SDSS/APOGEE DR16
metallicity system. This uniform analysis is compared to previous studies
[Fe/H] measurements for 23 clusters and we present spectroscopic metallicities
for the first time for 35 open clusters.
