Discovery of the Lensed Quasar System DES J0408-5354
  We report the discovery and spectroscopic confirmation of the quad-like
lensed quasar system DES J0408-5354 found in the Dark Energy Survey (DES) Year
1 (Y1) data. This system was discovered during a search for DES Y1 strong
lensing systems using a method that identified candidates as red galaxies with
multiple blue neighbors. DES J0408-5354 consists of a central red galaxy
surrounded by three bright (i < 20) blue objects and a fourth red object.
Subsequent spectroscopic observations using the Gemini South telescope
confirmed that the three blue objects are indeed the lensed images of a quasar
with redshift z = 2.375, and that the central red object is an early-type
lensing galaxy with redshift z = 0.597. DES J0408-5354 is the first quad lensed
quasar system to be found in DES and begins to demonstrate the potential of DES
to discover and dramatically increase the sample size of these very rare
objects.
