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Cross-correlation of Tenerife data with Galactic templates - evidence for spinning dust?

Angelica de Oliveira-Costa, Max Tegmark, Carlos M. Gutierrez, Aled W. Jones, R. D. Davies, A. N. Lasenby, R. Rebolo, R. A. Watson

astro-pharXiv:astro-ph/9904296

Abstract

The recent discovery of dust-correlated diffuse microwave emission has prompted two rival explanations: free-free emission and spinning dust grains. We present new detections of this component at 10 and 15 GHz by the switched-beam Tenerife experiment. The data show a turnover in the spectrum and thereby supports the spinning dust hypothesis. We also present a significant detection of synchrotron radiation at 10 GHz, useful for normalizing foreground contamination of CMB experiments at high-galactic latitudes.

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