Bulkflows from Clusters of Galaxies.

Atrio-Barandela,Kashlinsky,Ebeling,Kocevski, Edge

The kinematic Sunyaev-Zeldovich effect can produced a measurable temperature anisotropy in the cosmic microwave background that can be use to measure the collective motion of clusters of galaxies. We discuss our recent measurement of motions on scales of ~300-800 Mpc, its systematics and uncertainties and the correlation with X-ray luminosity,
a crucial test that indicates the reality of the flow. We discuss the cosmological implications if the flow extends all the way across the cosmological horizon.