The Cosmic Background Imager (CBI) is a special-purpose radio telescope designed to study the cosmic microwave background radiation from the early universe. It is located at an altitude of 5080 m (16,700 feet) in the Chilean Andes at the Chajnantor Observatory.

The CBI Project is a collaboration between the California Institute of Technology, the Canadian Institute for Theoretical Astrophysics, the University of Chicago, the National Radio Astronomy Observatory, the Max-Planck-Institut für Radioastronomie (Bonn), Oxford University, the University of Manchester, the Universidad de Chile, and the Universidad de Concepción. The project has been supported by funds from the National Science Foundation, the California Institute of Technology, Maxine and Ronald Linde, Cecil and Sally Drinkward, Barbara and Stanley Rawn Jr., Rochus Vogt, the Kavli Institute, and the Canadian Institute for Advanced Research.

Contents Press Releases October 7, 2004 May 23, 2002 Instrument description CBI2 Upgrade (Feb 8, 2009) CBI team members (Jun 20, 2007) Papers and preprints (Jan 28, 2009) Numerical data, window functions, and covariance matrices (Jan 28, 2009) Conference presentations (Dec 12, 2006) Photo gallery (Apr 24, 2003) Weather logs (Sep 13, 2007) Web resources Project pages (password required)

Last update: 2009-02-08.     Copyright © 1998-2009 California Institute of Technology.
Contact: tjp at astro.caltech.edu.