MAXIMA-1: A Measurement of the Cosmic Microwave Background Anisotropy on Angular Scales of 10'-5°

By S. Hanany, P. Ade, A. Balbi, J. Bock, J. Borrill, A. Boscaleri, P. Bernardis, P. G. Ferreira, V. Hristov, Andrew H. Jaffe and 12 more. 2000

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We present a map and an angular power spectrum of the anisotropy of the cosmic microwave background (CMB) from the first flight of the Millimeter-wave Anisotropy Experiment Imaging Array (MAXIMA). MAXIMA is a balloon-borne experiment with an array of 16 bolometric photometers operated at 100 mK. MAXIMA observed a 124 deg2 region of the sky with 10' resolution at frequencies of 150, 240, and 410 GHz. The data were calibrated using in-flight measurements of the CMB dipole anisotropy. A map of the CMB anisotropy was produced from three 150 and one 240 GHz photometer without need for foreground subtractions. Analysis of this CMB map yields a power spectrum for the CMB anisotropy over the range 36 ≤ l ≤ 785. The spectrum shows a peak with an amplitude of 78 ± 6 μK at l ≃ 220 and an amplitude varying between ~40 and ~50 μK for 400 ≲ l ≲ 785.

Subfields: Astronomy and Astrophysics

View Paper: https://www.semanticscholar.org/paper/29395a264cb09f93fc43cc50208a7dc6da01ffca

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In Astronomy and Astrophysics

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  4. J. Brinkmann
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