2001/10/31 by Pia Mukherjee, Brian Dennison, B. Dennison +7 · 24 citations
Physics and Astronomy · #Anisotropy #Astronomy #Astrophysics #Astrophysics and Cosmic Phenomena #Cosmic microwave background #Cosmic ray #Cosmology and Gravitation Theories #Geology #Observatory #Optics #Physics #Radio Astronomy Observations and Technology #Remote sensing #Sky #astro-ph
paper · pdf · doi:10.1086/342702
published in The Astrophysical Journal 579(1), 83-92 (IOP Publishing) · 21 pages, 3 figures, ApJ, in press
arxiv created 2002/07/04 · openalex publication_date 2002/10/24 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We study Galactic emission foreground contamination of the Owens Valley Radio Observatory and UCSB South Pole 1994 cosmic microwave background anisotropy data by cross-correlating with templates of infrared dust emission and new high-resolution Virginia Tech Spectral Line Survey (VTSS) and Southern Hα Sky Survey Atlas (SHASSA) Hα data. Hα 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.