First Results from Viper: Detection of Small-scale Anisotropy at 40 GH[CLC]z[/CLC]
- 1 April 2000
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 532 (2) , L83-L86
- https://doi.org/10.1086/312576
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 026 (FWHM) beam and a passband centered at 40 GHz. Anisotropy band-power measurements in bands spanning the range of l in which the first acoustic peak is expected (bands centered at l = 108, 173, 237, 263, 422, and 589) are reported. Statistically significant CMB anisotropy is detected in all bands.Keywords
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