Archive for Brent Tully

Laniakea – Our Local Supercluster

Posted in The Universe and Stuff with tags , , , on September 6, 2014 by telescoper

My week of self-imposed isolation is almost over so I suppose I should try to re-acclimatize myself to the world (or at least the world of the internet)  by doing a quick post of a nice video. I remember Brent Tully talking at the conference I went to in Estonia earlier this summer about the work he has been doing with his collaborators on using the local peculiar velocity field to map structures in the galaxy distribution. Now the paper is out in the journal Nature. Laniakea is the name the group chose for the local supercluster which has been known about for some time, but this work provides a more detailed map. The name Laniakea means “immeasurable heaven” in Hawaiian, from “lani” for ‘heaven’ and “akea” for ‘spacious’ or ‘immeasurable’.  Rather disappointingly it has nothing to do with Ikea, so sheds little light on my own theory of the Universe.