The feeble giant. Discovery of a large and diffuse Milky Way dwarf galaxy in the constellation of Crater

@article{Torrealba2016TheFG,
  title={The feeble giant. Discovery of a large and diffuse Milky Way dwarf galaxy in the constellation of Crater},
  author={Gabriel Torrealba and Sergey E. Koposov and Vasily A Belokurov and Michael Irwin},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2016},
  volume={459},
  pages={2370-2378}
}
We announce the discovery of the Crater 2 dwarf galaxy, identified in imaging data of the VST ATLAS survey. Given its half-light radius of ~1100 pc, Crater 2 is the fourth largest dwarf in the Milky Way, surpassed only by the LMC, SMC and the Sgr dwarf. With a total luminosity of $M_V\approx-8$, this satellite galaxy is also one of the lowest surface brightness dwarfs. Falling under the nominal detection boundary of 30 mag arcsec$^{-2}$, it compares in nebulosity to the recently discovered Tuc… 

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