Laniakea Our Home Supercluster of Galaxies

by Brent Tully

at Physics Colloquium

Thu, 02 Jun 2016, 15:30
Physics building (#54) room 207

Abstract

Our Milky Way galaxy is only one of an unfathomably large number of galaxies that formed through the pull of gravity from tiny ripples in the caldron of the Big Bang Most of the gravity was supplied by a mysterious dark matter Galaxies are moving toward higher concentrations of dark matter and away from voids Boundaries can be established that separate different basins of gravitational attraction in a manner analogous to the distinction between watersheds on Earth We call our basin of attraction Laniakea Supercluster a region of 100 000 galaxies and containing a mass 100 quadrillion times the mass of the Sun Refreshments are served at 3:20pm

Created on 04-05-2016 by Bar Lev, Yevgeny (ybarlev)
Updaded on 04-05-2016 by Bar Lev, Yevgeny (ybarlev)