1999/02/03 by G. W. Wilson, L. Knox, Scott Dodelson +16 · 2 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #Radio Astronomy Observations and Technology #Scientific Research and Discoveries #astro-ph
paper · pdf · doi:10.1086/308535
published as Astrophys.J. 532 (2000) 57-64 · 9 pages, 6 included figures
arxiv created 1999/02/03 · openalex publication_date 2000/03/20 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/01
We present new cosmic microwave background (CMB) anisotropy results from the combined analysis of the three flights of the first Medium Scale Anisotropy Measurement (MSAM1). This balloon-borne bolometric instrument measured about 10 deg 2 of sky at half-degree resolution in four frequency bands from 5.2 to 20 cm -1 with a high signal-to-noise ratio. Here we present an overview of our analysis methods, compare the results from the three flights, derive new constraints on the CMB power spectrum from the combined data, and reduce the data to total power Wiener-filtered maps of the CMB. A key feature of this new analysis is a determination of the amplitude of CMB fluctuations at l ~ 400. The analysis technique is described in a companion paper (L. Knox).