MAXIMA-1: A Measurement of the Cosmic Microwave BackgroundAnisotropy on angular scales of 10' to 5 degrees

Journal Article · Mon Oct 02 00:00:00 EDT 2000 · Astrophysics Journal

OSTI ID:886077

Ade, P; Balbi, A; Bock, J; Borrill, J; Boscaleri, A; deBernardis, P; Ferreira, P G; Hanany, S; Hristov, V V; Jaffe, A H; Lange, A E; Lee, A T; Mauskopf, P D; Netterfield, C B; Oh, S; Pascale, E; Rabii, B; Richards, P L; Smoot, G F; Stompor, R ; Winant, C D; Wu, J H.P.

We present a map and an angular power spectrum of the anisotropy of the cosmic microwave background (CMB) from the first flight of MAXIMA. MAXIMA is a balloon-borne experiment with an array of 16 bolometric photometers operated at 100 mK. MAXIMA observed a 124 deg 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 {le} {ell} {le} 785. The spectrum shows a peak with an amplitude of 78 {+-} 6 {mu}K at {ell} {approx_equal} 220 and an amplitude varying between {approx} 40 {mu}K and {approx} 50 {mu}K for 400 {approx}< {ell} {approx}< 785.

• Research Organization: Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
• Sponsoring Organization: USDOE Director. Office of Science. Office of AdvancedScientific Computing Research; National Aeronautics and SpaceAdministration Grants NAG5-3941 and NAG5-6552 and NAG5-4454 and GSRP-031and GSRP-032, National Science Foundation AST-9120005; KDI PrecisionProducts Inc Grant 9872979, Particle Physics and Astronomy ResearchCouncil UK
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 886077
• Report Number(s): LBNL--60038; BnR: KJ0102000
• Journal Information: Astrophysics Journal, Journal Name: Astrophysics Journal Journal Issue: 1 Vol. 545
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
99 GENERAL AND MISCELLANEOUS
AMPLITUDES
ANISOTROPY
DIPOLES
PHOTOMETERS
RELICT RADIATION
RESOLUTION
SKY