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The Cosmic Background Imager 2

Abstract:

We describe an upgrade to the Cosmic Background Imager instrument to increase its surface brightness sensitivity at small angular scales. The upgrade consisted of replacing the thirteen 0.9-m antennas with 1.4-m antennas incorporating a novel combination of design features, which provided excellent sidelobe and spillover performance for low manufacturing cost. Off-the-shelf spun primaries were used, and the secondary mirrors were oversized and shaped relative to a standard Cassegrain in order...

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Astrophysics
Role:
Author
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Journal:
Monthly Notices of the Royal Astronomical Society
Publication date:
2011-08-19
EISSN:
1365-2966
ISSN:
0035-8711
URN:
uuid:1b3fd0bc-2e60-44b6-a1fd-b89ea7e6e0f3
Source identifiers:
192891
Local pid:
pubs:192891

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