12–14 Sept 2011
AlbaNova main building
Europe/Stockholm timezone

The Sunyaev-Zel'dovich effect in the Bullet Cluster

14 Sept 2011, 14:00
45m
FD51 (AlbaNova main building)

FD51

AlbaNova main building

Roslagstullsbacken 21 Stockholm

Speaker

Haukur Sigurdarson

Description

The Sunyaev-Zel'dovich (SZ) effect offers an opportunity to probe the properties of the intracluster plasma in galaxy clusters through its interaction with the cosmic microwave background radiation. I will present the detection of the SZ effect at 870 micrometers in the Bullet Cluster of Galaxies, at redshift 0.3. I will discuss the techniques used to remove background submillimeter galaxies and the filtering applied to extract the extended SZ emission. By modeling the data the distribution and properties of the hot gas in the cluster can be constrained.

Presentation materials