Galactic Foregrounds in OVRO and UCSB South Pole 1994 Cosmic Microwave Background Anisotropy Data

We study Galactic emission foreground contamination of the OVRO and UCSB South Pole 1994 cosmic microwave background (CMB) anisotropy data by crosscorrelating with templates of infrared dust emission and new high resolution Hα data. Hα data provide rough upper limits on the level of free-free emissi...

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Bibliographic Details
Main Authors: Pia Mukherjee, Brian Dennison, Bharat Ratra, John H. Simonetti, Ken Ganga
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Published: 2001
Subjects:
South Pole
South pole
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.258.2852
http://arxiv.org/pdf/astro-ph/0110457v1.pdf
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Summary:We study Galactic emission foreground contamination of the OVRO and UCSB South Pole 1994 cosmic microwave background (CMB) anisotropy data by crosscorrelating with templates of infrared dust emission and new high resolution 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. Subject headings: cosmology: observation — cosmic microwave background — diffuse radiation — ISM: dust, extinction

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