The Detection of Galaxy Cluster Motions Using Data from the Atacama Cosmology Telescope and BOSS

Add to your list(s) Download to your calendar using vCal

• Nick Hand (University of California, Berkeley)
• Tuesday 22 May 2012, 16:30-17:30
• Martin Ryle Seminar Room, Kavli Institute.

If you have a question about this talk, please contact karen.

Using microwave sky maps from the Atacama Cosmology Telescope (ACT), the motions of galaxy clusters and groups were recently detected for the first time using CMB temperature distortions due to the kinematic Sunyaev-Zel’dovich effect. The positions of galaxy clusters in the ACT data were identified by their constituent luminous galaxies observed by the Baryon Oscillation Spectroscopic Survey. The mean pairwise momentum of the objects was measured at high statistical significance. I will discuss the methodology and results of this analysis in the context of the standard cosmological model and will comment on possible continuations of this analysis in the future.

This talk is part of the Cavendish Astrophysics Seminars series.

This talk is included in these lists:

• All Cavendish Laboratory Seminars
• All Talks (aka the CURE list)
• Cavendish Astrophysics Seminars
• Centre for Health Leadership and Enterprise
• Combined External Astrophysics Talks DAMTP
• Cosmology, Astrophysics and General Relativity
• Featured lists
• ME Seminar
• Martin Ryle Seminar Room, Kavli Institute
• Neurons, Fake News, DNA and your iPhone: The Mathematics of Information
• School of Physical Sciences
• Thin Film Magnetic Talks

Note that ex-directory lists are not shown.