In an article published 4 Sept 2014 in Nature, Tully et. al.
describe the "The Laniakea supercluster of galaxies".
Quote:
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Originally Posted by Tully et. al. in Nature
Here we report a map of structure made using a catalogue of peculiar velocities. We find locations where peculiar velocity flows diverge, as water does at watershed divides, and we trace the surface of divergent points that surrounds us. Within the volume enclosed by this surface, the motions of galaxies are inward after removal of the mean cosmic expansion and long range flows. We define a supercluster to be the volume within such a surface, and so we are defining the extent of our home supercluster, which we call Laniakea.
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Abstract including video and link to paid article here :-
http://www.nature.com/nature/journal...74.html#videos