Measuring the cosmic microwave background with BOOMERANG

Details Measuring the cosmic microwave background with BOOMERANG Measuring the cosmic microwave background with BOOMERANG

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003phdt.........8m&link_type=abstract

Thesis (PhD). UNIVERSITY OF CALIFORNIA, SANTA BARBARA, Source DAI-B 64/06, p. 2715, Dec 2003, 240 pages.

Mathematics

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Scientific paper

In recent years measurements of the Cosmic Microwave Background (CMB), the remnant radiation from the Big Bang, have helped to open a new era of precision cosmology. BOOMERANG is a 1.3 m of axis balloon-borne telescope designed for long duration (LDB) flights around Antarctica. It utilizes an AC-biased bolometer receiver operating in the frequency range 90 450 GHz. BOOMERANG has had two successful LDB flights (1398 and BOOM03). We discuss the results of the B98 flight which measured the angular power spectrum of the CMB temperature anisotropies from ℓ = 25 to ℓ = 1000 and plays a strong role in providing strong constraints on cosmological parameters, namely Ωtot and Ω b. We also discuss the design and in-flight performance of the BOOM03 flight. BOOM03 was designed to measure CMB temperature and polarization anisotropies. It uses four pairs of polarization sensitive bolometers at 145 GHz. Polarizing grids provide polarization sensitivity for four 2-color photometers operating at 245 and 345 GHz.

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