Galactic Foregrounds in Owens Valley Radio Observatory and UCSB South Pole 1994 Cosmic Microwave Background Anisotropy Data
- 1 November 2002
- journal article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 579 (1) , 83-92
- https://doi.org/10.1086/342702
Abstract
We study Galactic emission foreground contamination of the OVRO and UCSB South Pole 1994 cosmic microwave background (CMB) anisotropy data by cross-correlating with templates of infrared dust emission and new high resolution $H_{\alpha}$ data. $H_{\alpha}$ data provide rough upper limits on the level of free-free emission in the data sets. The cross-correlation analysis does not contradict a two component foreground emission hypothesis, with the two dust-correlated components being free-free emission and spinning dust emission.Comment: 21 pages, 3 figures, ApJ, in pres
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