Constraints on a Stochastic Background of Primordial Magnetic Fields with WMAP and South Pole Telescope data

We constrain a stochastic background of primordial magnetic fields (PMF) by its contribution to the cosmic microwave background (CMB) anisotropy angular power spectrum with the combination of WMAP 7 year and South Pole Telescope (SPT) data. The contamination in the SPT data by unresolved point sourc...

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Main Authors: Paoletti, Daniela, Finelli, Fabio
Format: Text
Language:unknown
Published: arXiv 2012
Subjects:
Cosmology and Nongalactic Astrophysics astro-ph.CO
FOS Physical sciences
South Pole
South pole
Online Access:https://dx.doi.org/10.48550/arxiv.1208.2625
https://arxiv.org/abs/1208.2625
id ftdatacite:10.48550/arxiv.1208.2625
record_format openpolar
spelling ftdatacite:10.48550/arxiv.1208.2625 2023-05-15T18:22:00+02:00 Constraints on a Stochastic Background of Primordial Magnetic Fields with WMAP and South Pole Telescope data Paoletti, Daniela Finelli, Fabio 2012 https://dx.doi.org/10.48550/arxiv.1208.2625 https://arxiv.org/abs/1208.2625 unknown arXiv https://dx.doi.org/10.1016/j.physletb.2013.08.065 arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Cosmology and Nongalactic Astrophysics astro-ph.CO FOS Physical sciences article-journal Article ScholarlyArticle Text 2012 ftdatacite https://doi.org/10.48550/arxiv.1208.2625 https://doi.org/10.1016/j.physletb.2013.08.065 2022-04-01T13:41:39Z We constrain a stochastic background of primordial magnetic fields (PMF) by its contribution to the cosmic microwave background (CMB) anisotropy angular power spectrum with the combination of WMAP 7 year and South Pole Telescope (SPT) data. The contamination in the SPT data by unresolved point sources and by the Sunyaev Zeldovich (SZ) effect due to galaxy clusters has been taken into account as modelled by the SPT collaboration. With this combination of WMAP 7 yr and SPT data, we constrain the amplitude Gaussian smoothed over 1 Mpc scale of a stochatic background of non-helical PMF to $B_{\rm 1 Mpc}<3.5$ nG at 95% confidence level. Our analysis shows that SPT data up to $\ell=3000$ bring an improvement of almost a factor two with respect to results with previous CMB high-$\ell$ data. We then discuss the forecasted impact from unresolved points sources and SZ effect for {\sc Planck} capabilities in constraining PMF. : 6 pages, 6 figures, matches the version published in Phys. Lett. B Text South pole DataCite Metadata Store (German National Library of Science and Technology) South Pole
institution Open Polar
collection DataCite Metadata Store (German National Library of Science and Technology)
op_collection_id ftdatacite
language unknown
topic Cosmology and Nongalactic Astrophysics astro-ph.CO
FOS Physical sciences
spellingShingle Cosmology and Nongalactic Astrophysics astro-ph.CO
FOS Physical sciences
Paoletti, Daniela
Finelli, Fabio
Constraints on a Stochastic Background of Primordial Magnetic Fields with WMAP and South Pole Telescope data
topic_facet Cosmology and Nongalactic Astrophysics astro-ph.CO
FOS Physical sciences
description We constrain a stochastic background of primordial magnetic fields (PMF) by its contribution to the cosmic microwave background (CMB) anisotropy angular power spectrum with the combination of WMAP 7 year and South Pole Telescope (SPT) data. The contamination in the SPT data by unresolved point sources and by the Sunyaev Zeldovich (SZ) effect due to galaxy clusters has been taken into account as modelled by the SPT collaboration. With this combination of WMAP 7 yr and SPT data, we constrain the amplitude Gaussian smoothed over 1 Mpc scale of a stochatic background of non-helical PMF to $B_{\rm 1 Mpc}<3.5$ nG at 95% confidence level. Our analysis shows that SPT data up to $\ell=3000$ bring an improvement of almost a factor two with respect to results with previous CMB high-$\ell$ data. We then discuss the forecasted impact from unresolved points sources and SZ effect for {\sc Planck} capabilities in constraining PMF. : 6 pages, 6 figures, matches the version published in Phys. Lett. B
format Text
author Paoletti, Daniela
Finelli, Fabio
author_facet Paoletti, Daniela
Finelli, Fabio
author_sort Paoletti, Daniela
title Constraints on a Stochastic Background of Primordial Magnetic Fields with WMAP and South Pole Telescope data
title_short Constraints on a Stochastic Background of Primordial Magnetic Fields with WMAP and South Pole Telescope data
title_full Constraints on a Stochastic Background of Primordial Magnetic Fields with WMAP and South Pole Telescope data
title_fullStr Constraints on a Stochastic Background of Primordial Magnetic Fields with WMAP and South Pole Telescope data
title_full_unstemmed Constraints on a Stochastic Background of Primordial Magnetic Fields with WMAP and South Pole Telescope data
title_sort constraints on a stochastic background of primordial magnetic fields with wmap and south pole telescope data
publisher arXiv
publishDate 2012
url https://dx.doi.org/10.48550/arxiv.1208.2625
https://arxiv.org/abs/1208.2625
geographic South Pole
geographic_facet South Pole
genre South pole
genre_facet South pole
op_relation https://dx.doi.org/10.1016/j.physletb.2013.08.065
op_rights arXiv.org perpetual, non-exclusive license
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
op_doi https://doi.org/10.48550/arxiv.1208.2625
https://doi.org/10.1016/j.physletb.2013.08.065
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