A high spatial resolution analysis of the MAXIMA-1 cosmicmicrowave background anisotropy data

Journal Article · Sun Apr 29 00:00:00 EDT 2001 · Astrophysical Journal

DOI:https://doi.org/10.1086/324437· OSTI ID:893520

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

We extend the analysis of the MAXIMA-1 cosmic microwave background data to smaller angular scales. MAXIMA, a bolometric balloon-borne experiment, mapped a 124 deg(2) region of the sky with 10 minutes resolution at frequencies of 150, 240, and 410 GHz during its first flight. The original analysis, which covered the multipole range 36 less than or equal to l less than or equal to 785 using a 100 deg(2) map, is extended to l = 1235 using a subset of the data from three 150 GHz photometers in the fully cross-linked central 60 deg(2) of the map. The main improvement over the original analysis is the use of 3 minutes square pixels in the calculation of the map. The new analysis is consistent with the original for l<785. For l>785, where inflationary models predict a third acoustic peak, the new analysis shows power with an amplitude of 56 +/- 7 muK at l similar or equal to 850 in excess to the average power of 42 +/- 3 muK in the range 441<l<785.

• Research Organization: COLLABORATION - UCBerkeley
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 893520
• Report Number(s): LBNL--61795
• Journal Information: Astrophysical Journal, Journal Name: Astrophysical Journal Journal Issue: 1 Vol. 561; ISSN ASJOAB; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACOUSTICS
AMPLITUDES
ANISOTROPY
MULTIPOLES
PHOTOMETERS
RELICT RADIATION
RESOLUTION
SKY
SPATIAL RESOLUTION