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Cosmic Microwave Background Fluctuation Searches On 5° to 10° Scales

Published online by Cambridge University Press:  08 February 2017

R. D. Davies ,
R. A. Watson ,
R. Rebolo ,
J. Beckman  and
A. N. Lasenby
R. D. Davies
Affiliation:
Nuffield Radio Astronomy Laboratories Jodrell Bank, Macclesfield, Cheshire UK
R. A. Watson
Affiliation:
Nuffield Radio Astronomy Laboratories Jodrell Bank, Macclesfield, Cheshire UK
R. Rebolo
Affiliation:
Instituto de Astrofisica de Canarias La Laguna, Tenerife, Spain
J. Beckman
Affiliation:
Instituto de Astrofisica de Canarias La Laguna, Tenerife, Spain
A. N. Lasenby
Affiliation:
Mullard Radio Astronomy Laboratories Cambridge UK

Abstract

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Deep observations of the cosmic microwave background (CMB) have been made at 10 GHz with beamwidths of 5° and 8° using a triple-beam technique, which greatly reduces atmospheric effects. Significant signals are detected with an rms of ΔT/T ~ 4×10−5. These signals could be intrinsic to the CMB and are providing fundamental information about galaxy formation in the early universe. A component of this 10 GHz emission may be coming from galactic synchrotron features. This galactic contribution will be elucidated in forthcoming 15 and 30 GHz observations.

Type
IV. Extragalactic Background Radiation and Cosmology
Information
Symposium - International Astronomical Union , Volume 139: The Galactic and Extragalactic Background Radiation , 1990 , pp. 398 - 399
Copyright
Copyright © Kluwer 1990 

References

REFERENCES

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