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The Izaña Cosmic Microwave Background Fluctuations Experiment: A Progress Report

Published online by Cambridge University Press:  03 August 2017

R.A. Watson ,
R. Rebolo ,
R.D. Davies ,
A.N. Lasenby  and
J.E. Beckman
R.A. Watson
Affiliation:
University of Manchester, NRAL, Jodrell Bank, UK Instituto de Astrofisica de Canarias, Tenerife, Spain
R. Rebolo
Affiliation:
University of Manchester, NRAL, Jodrell Bank, UK
R.D. Davies
Affiliation:
University of Manchester, NRAL, Jodrell Bank, UK
A.N. Lasenby
Affiliation:
MRAO, Cavendish Laboratory, Cambridge, UK
J.E. Beckman
Affiliation:
Instituto de Astrofisica de Canarias, Tenerife, Spain

Abstract

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The Jodrell-IAC anisotropy experiment operating with twin 8° beams at 10.45 GHz over a two-year period, produced the reported limit of δ T/T≤3.7×10−5 (Davies et al., 1987: Nature 326, 462). Given the ability of this angular scale to strongly constrain cosmological models, it was decided to continue and expand the experiment by extending the horns to reduce the beam-size to 5°, while retaining the 8° separation. This improves the sensitivity to fluctuations by extending the angular range and decreasing beam-smearing.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 130: Large Scale Structures of the Universe , 1988 , pp. 25 - 26
Copyright
Copyright © Reidel 1988