Galactic foregrounds in Owens Valley Radio Observatory 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 cross-correlating with templates of infrared dust emission and new high resolution $H_{\alpha}$ data. $H_{\alpha}$ data provide rough upper limits on the leve...

Full description

Bibliographic Details
Published in:The Astrophysical Journal
Main Authors: Mukherjee, P., Dennison, B., Ratra, B., Simonetti, J.H., Ganga, K., Hamilton, J.C.
Other Authors: Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS)
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 2002
Subjects:
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]
[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph]
South pole
Online Access:https://hal.in2p3.fr/in2p3-00011101
https://doi.org/10.1086/342702
Description
Summary: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.

Similar Items