Cosmic Anisotropy Telescope

Cosmic Anisotropy Telescope

Coordinates	52°09′58″N 0°02′02″E / 52.166°N 0.034°E / 52.166; 0.034Coordinates: 52°09′58″N 0°02′02″E / 52.166°N 0.034°E / 52.166; 0.034
Telescope style	radio telescope
Related media on Wikimedia Commons
[edit on Wikidata]

The Cosmic Anisotropy Telescope (CAT) was a three-element interferometer for cosmic microwave background radiation (CMB/R) observations at 13 to 17 GHz, based at the Mullard Radio Astronomy Observatory. In 1995, it was the first instrument to measure small-scale structure in the cosmic microwave background. When the more sensitive Very Small Array came online, the CAT telescope was decommissioned in a ceremonial bonfire.

External links

• Cosmic Anisotropy Telescope (CAT) online
• The first detection of small-scale structure in the cosmic microwave background
• Press release from 1995 describing first measurements of small-scale structure in the cosmic microwave background
• The CAT enclosure on Google Maps

Cosmic microwave background radiation (CMB)
Discovery of CMB radiation Timeline of CMB astronomy
Effects	Cosmic variance Diffusion damping Recombination Sachs–Wolfe effect Sunyaev–Zel'dovich effect Thomson scattering	9-year WMAP image (2012) of the CMB.
Experiments	Space COBE Planck RELIKT-1 WMAP Balloon Archeops ARCADE BOOMERanG EBEX MAXIMA QMAP Spider TopHat Ground ABS ACBAR ACT AMI AMiBA APEX ATCA BICEP BICEP2 BICEP3 BIMA CAPMAP CAT CBI CLASS COSMOSOMAS DASI Keck Array MAT OVRO POLARBEAR QUaD QUBIC QUIET QUIJOTE Saskatoon SPT SZA Tenerife VSA

Coordinates: 52°09′58″N 0°02′02″E / 52.166°N 0.034°E / 52.166; 0.034