Advances in Astronomy / 2010 / Article / Fig 1

Review Article

Tidal Dwarf Galaxies and Missing Baryons

Figure 1

NGC7252 (a) is a recent merger of two spiral galaxies into a partially-relaxed central spheroidal galaxy. Two massive TDGs are found near the tip of the two long tidal tails (blue = HI, pink = H – image courtesy of Pierre-Alain Duc). AM 1353-272 (b) does not have prominent, massive TDGs at the tip of tidal tails, but has instead may lower-mass objects all along its tail [5]. The bright spot on the northern tail is a foreground star.

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