Abstract
We describe a measurement of the angular power spectrum of anisotropies in the cosmic microwave background (CMB) at scales of 0°.3 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 16′.5 FWHM, respectively. Analysis of the maps gives a power spectrum with a peak at angular scales of 1° with an amplitude 70 μΚCMB.
Original language | English (US) |
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Pages (from-to) | L59-L62 |
Journal | Astrophysical Journal |
Volume | 536 |
Issue number | 2 PART 2 |
DOIs | |
State | Published - Jun 20 2000 |
Externally published | Yes |
Keywords
- Balloons
- Cosmic microwave background
- Cosmology: Observations
- Instrumentation: Photometers
- Methods: Data analysis
- Telescopes
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science