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A search for the Sunyaev-Zel'dovich effect at millimeter wavelengthsIt is believed that X-ray emission from clusters of galaxies represents thermal bremsstrahlung from a hot plasma. According to Sunyaev and Zel'dovich (1972), the plasma column density and temperature derived from this model imply a measurable distortion of the cosmic background radiation (CBR) in the cluster direction. This distortion results from the Compton scattering of the CBR photons by the electrons in the plasma, resulting in an average increase of each photon. This process, known as the Sunyaev-Zel'dovich effect, is photon conserving and 'shifts' the CBR spectrum to higher frequencies. The result is a decrease of flux at frequencies below 7.5 per cm (the Rayleigh-Jeans region), and an increase above. The investigation is concerned with measurements of the Sunyaev-Zel'dovich effect at frequencies in the range from 3 to 10 per cm. Attention is given to the employed observing and analysis technique, and an initial null result for the cluster Abell 1795.
Document ID
19830061249
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Meyer, S. S.
Jeffries, A. D.
Weiss, R.
Date Acquired
August 11, 2013
Publication Date
August 1, 1983
Publication Information
Publication: Astrophysical Journal, Part 2 - Letters to the Editor
Volume: 271
ISSN: 0004-637X
Subject Category
Space Radiation
Accession Number
83A42467
Funding Number(s)
CONTRACT_GRANT: NGR-22-009-526
Distribution Limits
Public
Copyright
Other

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