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First Results from Viper: Detection of Small-Scale Anisotropy at 40 GHZ

J. B. Peterson, G. S. Griffin, M. G. Newcomb, D. L. Alvarez, C. M. Cantalupo, D. Morgan, K. W. Miller, K. Ganga, D. Pernic, M. Thoma

astro-pharXiv:astro-ph/9910503

Abstract

Results of a search for small-scale anisotropy in the cosmic microwave background (CMB) are presented. Observations were made at the South Pole using the Viper telescope, with a .26 degree (FWHM) beam and a passband centered at 40 GHz. Anisotropy band-power measurements in bands centered at l = 108, 173, 237, 263, 422 and 589 are reported. Statistically significant anisotropy is detected in all bands.

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