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

Abstract

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.

arXiv comment12 pages with 15 figures, submitted to MNRAS

References in corpus (20)

• Detection of Polarization in the Cosmic Microwave Background using DASI
• 9286 Stars: An Agglomeration of Stellar Polarization Catalogs
• Microwave Background Constraints on Cosmological Parameters
• Foregrounds and Forecasts for the Cosmic Microwave Background
• Microwave Emission at High Galactic Latitudes
• Radio polarization from the inner Galaxy at arcminute resolution
• Statistical Properties of Galactic Starlight Polarization
• A 1.4 GHz radio continuum and polarization survey at medium Galactic latitudes: II. First section
• Towards a model of full-sky Galactic synchrotron intensity and linear polarisation: a re-analysis of the Parkes data
• A Determination of the Spectral Index of Galactic Synchrotron Emission in the 1-10 GHz range
• Cross-correlation of Tenerife data with Galactic templates - evidence for spinning dust?
• Detectability of Inflationary Gravitational Waves with Microwave Background Polarization
• Power spectrum of the polarized diffuse Galactic radio emission
• Destriping of Polarized Data in a CMB Mission with a Circular Scanning Strategy
• The angular power spectra of polarized Galactic synchrotron
• The power-law behaviours of angular spectra of polarized Galactic synchrotron
• Polarization angular spectra of Galactic synchrotron emission on arcminute scales
• Determining cosmic microwave background anisotropies in the presence of foregrounds
• An iterative destriping technique for diffuse background polarization data
• Polarized Microwave Emission from Dust

Cited by in corpus (9)

• Three Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Polarization Analysis
• Considerations in optimizing CMB polarization experiments to constrain inflationary physics
• A 189 MHz, 2400 square degree polarization survey with the Murchison Widefield Array 32-element prototype
• A Sino-German lambda6 cm polarization survey of the Galactic plane I. Survey strategy and results for the first survey region
• The Sky Polarization Observatory
• A polarized synchrotron template for CMBP experiments after WMAP data
• Constraining the reionization history with large angle CMB polarization
• Separation of foreground and background signals in single frequency measurements of the CMB Polarization
• The synchrotron foreground and CMB temperature-polarization cross correlation power spectrum from the first year WMAP data