Polarization of the Atmosphere as a Foreground for Cosmic Microwave Background Polarization Experiments
arXiv:astro-ph/0307052 · doi:10.1016/j.newar.2003.09.017
Abstract
We quantify the level of polarization of the atmosphere due to Zeeman splitting of oxygen in the Earth's magnetic field and compare it to the level of polarization expected from the polarization of the cosmic microwave background radiation. The analysis focuses on the effect at mid-latitudes and at large angular scales. We find that from stratospheric balloon borne platforms and for observations near 100 GHz the atmospheric linear and circular polarized intensities is about 10^{-12} and 100 x 10^{-9} K, respectively, making the atmosphere a negligible source of foreground. From the ground the linear and circular polarized intensities are about 10^{-9} and 100 x 10^{-6} K, making the atmosphere a potential source of foreground for the CMB E (B) mode signal if there is even a 1% (0.01%) conversion of circular to linear polarization in the instrument.
arXiv comment9 pages, 5 figures, Latex; To be published in the proceedings of the workshop on "The Cosmic Microwave Background and its Polarization", New Astronomy Reviews, (eds. S. Hanany and K.A. Olive)
References in corpus (3)
- Extrapolation of Galactic Dust Emission at 100 Microns to CMBR Frequencies Using FIRAS
- Towards a model of full-sky Galactic synchrotron intensity and linear polarisation: a re-analysis of the Parkes data
- Large Angular Scale Polarization of the Cosmic Microwave Background and the Feasibility of its Detection
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