A New approach for a Galactic Synchrotron Polarized Emission Template in the Microwave Range

Details A New approach for a Galactic Synchrotron Polarized Emission Template in the Microwave Range A New approach for a Galactic Synchrotron Polarized Emission Template in the Microwave Range

2003-01-27

arxiv.org/abs/astro-ph/0301541v1

Mon.Not.Roy.Astron.Soc. 344 (2003) 347

Astronomy and Astrophysics

Astrophysics

12 pages with 15 figures, submitted to MNRAS

Scientific paper

10.1046/j.1365-8711.2003.06898.x

We present a new approach in modelling the polarized Galactic synchrotron emission in the microwave range (20-100 GHz), where this radiation is expected to play the leading role in contaminating the Cosmic Microwave Background (CMB) data. Our method is based on real surveys and aims at providing the real spatial distributions of both polarized intensity and polarization angles. Its main features are the modelling of a polarization horizon to determine the polarized intensity and the use of starlight optical data to model the polarization angle pattern. Our results are consistent with several existing data, and our template is virtually free from Faraday rotation effects as required at frequencies in the cosmological window.

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