The Sunyaev-Zeldovich effect at 9 millimeters

The Sunyaev-Zeldovich effect at 9 millimeters

We find, at 9 mm, evidence for a decrement of 1 mK in the cosmic microwave background temperature toward A2218, consistent with results at 3 cm. This verifies the approximate frequency independence of the effect, when quoted in terms of brightness temperature, in the Rayleigh-Jeans region. A 1 mK de...

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Veröffentlicht in:Astrophys. J., Lett. Ed.; (United States) Lett. Ed.; (United States), 1979-12, Vol.234, p.L173
Hauptverfasser: Perrenod, S. C., Lada, C. J.
Format: Artikel
Sprache:eng
Schlagworte:
640101 - Astrophysics & Cosmology- Cosmic Radiation
BACKGROUND RADIATION
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COSMIC RADIATION
ELECTROMAGNETIC RADIATION
ENERGY SPECTRA
FREQUENCY DEPENDENCE
GALAXY CLUSTERS
IONIZING RADIATIONS
MICROWAVE RADIATION
RADIATIONS
RADIOWAVE RADIATION
SPECTRA
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Zusammenfassung:We find, at 9 mm, evidence for a decrement of 1 mK in the cosmic microwave background temperature toward A2218, consistent with results at 3 cm. This verifies the approximate frequency independence of the effect, when quoted in terms of brightness temperature, in the Rayleigh-Jeans region. A 1 mK decrement may exist in A665, the richest Abell cluster, as well.
ISSN:0004-637X
1538-4357
DOI:10.1086/183133