A disk and no signatures of tidal distortion in the galaxy "lacking"
  dark matter NGC 1052-DF2
  Using ultra-deep imaging ($\mu_g = 30.4$ mag/arcsec$^2$; 3$\sigma$, 10"x10"),
we probed the surroundings of the first galaxy "lacking" dark matter
KKS2000[04] (NGC 1052-DF2). Signs of tidal stripping in this galaxy would
explain its claimed low content of dark matter. However, we find no evidence of
tidal tails. In fact, the galaxy remains undisturbed down to a radial distance
of 80 arcsec. This radial distance triples previous spatial explorations of the
stellar distribution of this galaxy. In addition, the distribution of its
globular clusters (GCs) is not extended in relation to the bulk of the galaxy
(the radius containing half of the GCs is 21 arcsec). We also found that the
surface brightness radial profiles of this galaxy in the g and r bands decline
exponentially from 35 to 80 arcsec. That, together with a constant ellipticity
and position angle in the outer parts of the galaxy strongly suggests the
presence of a low-inclination disk. This is consistent with the evidence of
rotation found for this object. This finding implies that the dynamical mass of
this galaxy is a factor of 2 higher than previously reported, bringing the dark
matter content of this galaxy in line with galaxies of similar stellar mass.
