The V-mode polarization of the Cosmic Microwave Background

The V-mode polarization of the Cosmic Microwave Background is discussed in a weakly magnetized plasma. The VV and VT angular power spectra are computed for adiabatic initial conditions of the Einstein-Boltzmann hierarchy. Depending upon the frequency channel and upon the magnetic field intensity, th...

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Detalles Bibliográficos
Autor principal: Giovannini, Massimo
Lenguaje:eng
Publicado: 2009
Materias:
Astrophysics and Astronomy
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.80.123013
http://cds.cern.ch/record/1207946
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author Giovannini, Massimo
author_facet Giovannini, Massimo
author_sort Giovannini, Massimo
collection CERN
description The V-mode polarization of the Cosmic Microwave Background is discussed in a weakly magnetized plasma. The VV and VT angular power spectra are computed for adiabatic initial conditions of the Einstein-Boltzmann hierarchy. Depending upon the frequency channel and upon the magnetic field intensity, the VT power spectra of the circular polarization can even be seven orders of magnitude larger than a putative B-mode polarization stemming from the lensing of the primary anisotropies. Specific programs aimed at the direct detection of the V-mode polarization of the Cosmic Microwave Background could provide a new observational tool for the scrutiny of pre-decoupling physics.
id cern-1207946
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2009
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spelling cern-12079462023-03-14T19:18:05Zdoi:10.1103/PhysRevD.80.123013http://cds.cern.ch/record/1207946engGiovannini, MassimoThe V-mode polarization of the Cosmic Microwave BackgroundAstrophysics and AstronomyThe V-mode polarization of the Cosmic Microwave Background is discussed in a weakly magnetized plasma. The VV and VT angular power spectra are computed for adiabatic initial conditions of the Einstein-Boltzmann hierarchy. Depending upon the frequency channel and upon the magnetic field intensity, the VT power spectra of the circular polarization can even be seven orders of magnitude larger than a putative B-mode polarization stemming from the lensing of the primary anisotropies. Specific programs aimed at the direct detection of the V-mode polarization of the Cosmic Microwave Background could provide a new observational tool for the scrutiny of pre-decoupling physics.The V-mode polarization of the Cosmic Microwave Background is discussed in a weakly magnetized plasma. The VV and VT angular power spectra are computed for adiabatic initial conditions of the Einstein-Boltzmann hierarchy. Depending upon the frequency channel and upon the magnetic field intensity, the VT power spectra of the circular polarization can even be seven orders of magnitude larger than a putative B-mode polarization stemming from the lensing of the primary anisotropies. Specific programs aimed at the direct detection of the V-mode polarization of the Cosmic Microwave Background could provide a new observational tool for the scrutiny of pre-decoupling physics.arXiv:0909.3629CERN-PH-TH-2009-171CERN-PH-TH-2009-171oai:cds.cern.ch:12079462009-09-22
spellingShingle Astrophysics and Astronomy
Giovannini, Massimo
The V-mode polarization of the Cosmic Microwave Background
title The V-mode polarization of the Cosmic Microwave Background
title_full The V-mode polarization of the Cosmic Microwave Background
title_fullStr The V-mode polarization of the Cosmic Microwave Background
title_full_unstemmed The V-mode polarization of the Cosmic Microwave Background
title_short The V-mode polarization of the Cosmic Microwave Background
title_sort v-mode polarization of the cosmic microwave background
topic Astrophysics and Astronomy
url https://dx.doi.org/10.1103/PhysRevD.80.123013
http://cds.cern.ch/record/1207946
work_keys_str_mv AT giovanninimassimo thevmodepolarizationofthecosmicmicrowavebackground
AT giovanninimassimo vmodepolarizationofthecosmicmicrowavebackground

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