An Ultra-Faint Galaxy Candidate Discovered in Early Data From the Magellanic Satellites Survey

@article{DrlicaWagner2016AnUG,
  title={An Ultra-Faint Galaxy Candidate Discovered in Early Data From the Magellanic Satellites Survey},
  author={Alex Drlica-Wagner and Keith C. Bechtol and Sahar Allam and Douglas L. Tucker and Robert A. Gruendl and M. D. Johnson and Alistair R. Walker and David J. James and David L. Nidever and Knut A. G. Olsen and Risa H. Wechsler and Marcello Cioni and Blair C. Conn and Kyler W. Kuehn and T. S. Li and Y.-Y. Mao and Nicolas F. Martin and Eric H. Neilsen and Noelia E. D. Noel and A. Pieres and Joshua D. Simon and Guy S. Stringfellow and Roeland P. van der Marel and Brian Yanny},
  journal={The Astrophysical Journal},
  year={2016},
  volume={833}
}
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 (N 28.5 mag arcsec 1 1 2 within its half-light radius) resolved overdensity of old and metal-poor stars located at a heliocentric distance of 45 kpc 4 5 . The physical size ( r1 2 46 pc 11 15 ) and low luminosity ( M V 3.2 mag 0.5 0.4 ) of this satellite are consistent with… 

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