The angular power spectra of polarized Galactic synchrotron

2000/06/27 by M. Tucci, E. Carretti, S. Cecchini +3 · 2 citations
Computer Science · Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Computational Physics and Python Applications #Cosmic microwave background #Cosmology and Gravitation Theories #Galactic plane #Linear polarization #Polarization (electrochemistry) #Spectral line #Synchrotron #Synchrotron radiation #astro-ph

paper · pdf · doi:10.1016/s1384-1076(00)00025-7

published as New Astronomy (2000), v. 5, p. 181-190 · 15 pages with 6 eps figures. Accepted for publication in New Astronomy

arxiv created 2000/06/27 · openalex publication_date 2000/07/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We derive the angular power spectra of intensity and polarization of Galactic synchrotron emission in the range 36 < l < 10³ from the Parkes survey mapping the southern Galactic plane at 2.4 GHz. The polarization spectra of both electric and magnetic parity up to l ≃ 10³ are approximated very well by power laws with slope coefficients ≃ 1.4, quite different from the CMB spectra. We show that no problem should arise from Galactic synchrotron for measurements of CMB polarization in the cosmological window.

Citations

• Cosmic microwave background polarization data and galactic foregrounds: estimation of cosmological parameters
• Angular Power Spectra of theCOBEDIRBE Maps
• A flat Universe from high-resolution maps of the cosmic microwave background radiation

Cited by

• Polarization Angular Spectra of Galactic Synchrotron Emission on Arcminute Scales
• Statistical Properties of Galactic Starlight Polarization