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Observing CMB polarisation through ice

Pietranera, Luca and Buehler, Stefan A. and Calisse, Paolo G. and Emde, Claudia and Hayton, Darren and John, Viju O. and Maffei, Bruno and Piccirillo, Lucio and Pisano, Giampaolo and Savini, Giorgio and Sreerekha, T. R. (2007) Observing CMB polarisation through ice. Monthly Notices of the Royal Astronomical Society, 376, pp. 645-650. Oxford University Press. doi: 10.1111/j.1365-2966.2007.11464.x.

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Official URL: http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2966.2007.11464.x/full


Ice crystal clouds in the upper troposphere can generate polarization signals at the μK level. This signal can seriously affect very sensitive ground-based searches for E and B modes of cosmic microwave background polarization. In this paper, we estimate this effect within the CLOVER experiment observing bands (97, 150 and 220 GHz) for the selected observing site (Llano de Chajnantor, Atacama desert, Chile). The results show that the polarization signal from the clouds can be of the order of or even bigger than the cosmic microwave background expected polarization. Climatological data suggest that this signal is fairly constant over the whole year in Antarctica. On the other hand, the stronger seasonal variability in Atacama allows for a 50 per cent of clean observations during the dry season.

Item URL in elib:https://elib.dlr.de/47834/
Document Type:Article
Title:Observing CMB polarisation through ice
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Pietranera, LucaUniv. of Manchester, Manchester, UKUNSPECIFIED
Buehler, Stefan A.Univ. Bremen, BremenUNSPECIFIED
Calisse, Paolo G.Cardiff Univ., Cardiff, UKUNSPECIFIED
Hayton, DarrenCardiff Univ., Cardiff, UKUNSPECIFIED
John, Viju O.Univ. of Miami, Miami, FL, USAUNSPECIFIED
Maffei, BrunoUniv. of Manchester, Manchester, UKUNSPECIFIED
Piccirillo, LucioUniv. of Manchester, Manchester, UKUNSPECIFIED
Pisano, GiampaoloUniv. of Manchester, Manchester, UKUNSPECIFIED
Savini, GiorgioCardiff Univ., Cardiff, UKUNSPECIFIED
Sreerekha, T. R.Met Office, Exeter, UKUNSPECIFIED
Journal or Publication Title:Monthly Notices of the Royal Astronomical Society
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 645-650
Publisher:Oxford University Press
Keywords:atmospheric effects, techniques: polarimetric, cosmic microwave background, cosmology: observations
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Atmosphären- und Klimaforschung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Remote Sensing
Deposited By: Emde, Dr.rer.nat. Claudia
Deposited On:18 May 2007
Last Modified:06 Sep 2019 15:17

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