The Keck Array is a suite of telescopes designed to measure the Cosmic Microwave Background polarization at high precision in search of the B-mode signature of inflation. Each Keck telescope duplicates the BICEP2 detector and optical design inside a compact, pulse tube cooled cryostat. This design allows up to five identical telescopes to be deployed on the DASI mount, located at the Martin A. Pomerantz Observatory at Amundsen-Scott South Pole Station.

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The Keck Array was deployed during the Austral summer of 2010-2011. Three receivers were installed in 2011, with two additional receivers following in 2012. From 2011 to 2013, all receivers observed at 150 GHz. From 2014-2015, two receivers operated at 95 GHz. In 2015, two more were converted to 220 GHz.

All papers and data are available at bicepkeck.org

Most Recent Image from the South Pole Web Cam