Measurement of a Peak in the Cosmic Microwave Background Power Spectrum from the North American Test Flight of Boomerang
Open Access
- 20 June 2000
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 536 (2) , L59-L62
- https://doi.org/10.1086/312743
Abstract
We describe a measurement of the angular power spectrum of anisotropies in the cosmic microwave background (CMB) at scales of 03 to 5° from the North American test flight of the Boomerang experiment. Boomerang is a balloon-borne telescope with a bolometric receiver designed to map CMB anisotropies on a long-duration balloon flight. During a 6 hr test flight of a prototype system in 1997, we mapped more than 200 deg2 at high Galactic latitudes in two bands centered at 90 and 150 GHz with a resolution of 26' and 165 FWHM, respectively. Analysis of the maps gives a power spectrum with a peak at angular scales of 1° with an amplitude 70 μKCMB.Keywords
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