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MAXIMA-1: A measurement of the cosmic microwave background anisotropy on angular scales of 10'-5°

Hanany, S., Ade, Peter A. R. ORCID: https://orcid.org/0000-0002-5127-0401, Balbi, A., Bock, J., Borrill, J., Boscaleri, A., de Bernardis, P., Ferreira, P. G., Hristov, V. V., Jaffe, A. H., Lange, A. E., Lee, A. T., Mauskopf, Philip Daniel ORCID: https://orcid.org/0000-0001-6397-5516, Netterfield, C. B., Oh, S., Pascale, Enzo ORCID: https://orcid.org/0000-0002-3242-8154, Rabii, B., Richards, P. L., Smoot, G. F., Stompor, R., Winant, C. D. and Wu, J. H. P. 2000. MAXIMA-1: A measurement of the cosmic microwave background anisotropy on angular scales of 10'-5°. Astrophysical Journal Letters 545 (1) , L5. 10.1086/317322

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Abstract

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.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: cosmic microwave background; cosmology: observations
Publisher: Institute of Physics
ISSN: 0004-637X
Last Modified: 24 Oct 2022 11:12
URI: https://orca.cardiff.ac.uk/id/eprint/47260

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