An Ultra-Faint Galaxy Candidate Discovered in Early Data from the
  Magellanic Satellites Survey
  We report a new ultra-faint stellar system found in Dark Energy Camera data
from the first observing run of the Magellanic Satellites Survey (MagLiteS).
MagLiteS J0644-5953 (Pictor II or Pic II) is a low surface brightness ({\mu} =
28.5 mag arcsec$^{-2}$ within its half-light radius) resolved overdensity of
old and metal-poor stars located at a heliocentric distance of 45 kpc. The
physical size (r$_{1/2}$ = 46 pc) and low luminosity (Mv = -3.2 mag) of this
satellite are consistent with the locus of spectroscopically confirmed
ultra-faint galaxies. MagLiteS J0644-5953 (Pic II) is located 11.3 kpc from the
Large Magellanic Cloud (LMC), and comparisons with simulation results in the
literature suggest that this satellite was likely accreted with the LMC. The
close proximity of MagLiteS J0644-5953 (Pic II) to the LMC also makes it the
most likely ultra-faint galaxy candidate to still be gravitationally bound to
the LMC.
