An [$\alpha$/Fe]-enhanced thick disk in a Milky Way Analogue
  The Milky Way disk consists of two prominent components - a thick,
alpha-rich, low-metallicity component and a thin, metal-rich, low-alpha
component. External galaxies have been shown to contain thin and thick disk
components, but whether distinct components in the [$\alpha$/Fe]-[Z/H] plane
exist in other Milky Way-like galaxies is not yet known. We present VLT-MUSE
observations of UGC 10738, a nearby, edge-on Milky Way-like galaxy. We
demonstrate through stellar population synthesis model fitting that UGC 10738
contains alpha-rich and alpha-poor stellar populations with similar spatial
distributions to the same components in the Milky Way. We discuss how the
finding that external galaxies also contain chemically distinct disk components
may act as a significant constraint on the formation of the Milky Way's own
thin and thick disk.
