View source for Cosmic Anisotropy Telescope

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{{Infobox telescope}}
The '''Cosmic Anisotropy Telescope''' ('''CAT''') was a three-element [[interferometer]] for [[cosmic microwave background radiation]] (CMB/R) observations at 13 to 17 [[Hertz|GHz]], based at the [[Mullard Radio Astronomy Observatory]].<ref>{{cite web |url=https://lambda.gsfc.nasa.gov/product/websites/AMI/mrao.cam.ac.uk/telescopes/cat/cat_intro.html |title=CAT - Introduction |work=[[Mullard Radio Astronomy Observatory|MRAO]] |publisher=[[NASA]] |access-date=1 June 2025}}</ref> In 1995, it was the first instrument to measure small-scale structure in the cosmic microwave background.<ref>{{cite press release |url=https://lambda.gsfc.nasa.gov/product/websites/AMI/mrao.cam.ac.uk/telescopes/cat/press_release.html |title=First detailed picture of the early universe |work=[[Mullard Radio Astronomy Observatory|MRAO]] |date=1996 |access-date=1 June 2025}}</ref><ref>{{cite journal |last1=Scott |first1=P. F. |last2=Saunders |first2=Richard |last3=Pooley |first3=Guy |last4=O'Sullivan |first4=Créidhe |last5=Lasenby |first5=A. N. |last6=Jones |first6=Michael |last7=Hobson |first7=M. P. |last8=Duffett-Smith |first8=P. J. |last9=Baker |first9=Joanne |display-authors=1 |url=https://iopscience.iop.org/article/10.1086/310000 |title=Measurements of Structure in the Cosmic Background Radiation with the Cambridge Cosmic Anisotropy Telescope |journal=[[The Astrophysical Journal]] |volume=461 |issue=1 |pages=L1–L4 |date=April 1996 |doi=10.1086/310000|url-access=subscription }}</ref> When the more sensitive [[Very Small Array]] came online in 2000, the CAT was decommissioned and partly dismantled.<ref>{{cite web |url=https://lambda.gsfc.nasa.gov/product/websites/AMI/mrao.cam.ac.uk/telescopes/cat/index.html |title=The Cosmic Anisotropy Telescope |work=[[Mullard Radio Astronomy Observatory|MRAO]] |publisher=[[NASA]] |access-date=1 June 2025}}</ref>

==References==
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== External links ==
* [http://www.mrao.cam.ac.uk/telescopes/cat/ Cosmic Anisotropy Telescope (CAT) online]
* [http://ukads.nottingham.ac.uk/cgi-bin/nph-bib_query?bibcode=1996ApJ...461L...1S&amp;db_key=AST&amp;high=41986efaf711058 The first detection of small-scale structure] in the cosmic microwave background
* [https://web.archive.org/web/20050309055411/http://www.mrao.cam.ac.uk/telescopes/cat/press_release.html Press release from 1995 describing first measurements of small-scale structure in the cosmic microwave background]
* [https://maps.google.com/maps?q=Cambridge&ll=52.165135,0.037379&spn=0.005643,0.007811&t=k&hl=en The CAT enclosure] on [[Google Maps]]

{{CMB experiments}}

[[Category:Cavendish Laboratory]]
[[Category:Radio telescopes]]
[[Category:Interferometric telescopes]]
[[Category:Cosmic microwave background experiments]]


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