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Observing cosmic mi...
Observing cosmic microwave background polarisation through ice
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- Pietranera, Luca (författare)
- School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom; School of Physics and Astronomy, Cardiff University, Cardiff, United Kingdom
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- Buehler, Stefan (författare)
- Institut fr Umweltphysik, Universität Bremen, Bremen, Germany
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- Calisse, Paolo G. (författare)
- School of Physics and Astronomy, Cardiff University, Cardiff, United Kingdom
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- Emde, Claudia (författare)
- Deutsches Zentrum fuer Luft- und Raumfahrt (DLR), Institut fuer Physik der Atmosphaere, Oberpfaffenhofen, Germany
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- Hayton, Darren (författare)
- School of Physics and Astronomy, Cardiff University, Cardiff, United Kingdom
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- John, Viju Oommen (författare)
- Rosenstiel School of Marine and Atmospheric Sciences, University of Miami, United States
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- Maffei, Bruno (författare)
- School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
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- Piccirillo, Lucio (författare)
- School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
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- Pisano, Giampaolo (författare)
- School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
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- Savini, Giorgio (författare)
- School of Physics and Astronomy, Cardiff University, Cardiff, United Kingdom
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- Sreerekha, T. R. (författare)
- Met Office, Exeter, United Kingdom
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(creator_code:org_t)
- 2007-04-13
- 2007
- Engelska.
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Ingår i: Monthly notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 0035-8711 .- 1365-2966. ; 376:2, s. 645-650
- Relaterad länk:
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https://doi.org/10.1...
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https://ltu.diva-por... (primary) (Raw object)
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https://academic.oup...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Rymd- och flygteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Aerospace Engineering (hsv//eng)
Nyckelord
- atmospheric effects
- techniques: polarimetric
- cosmic microwave background
- cosmology: observations
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Pietranera, Luca
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Buehler, Stefan
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Calisse, Paolo G ...
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Emde, Claudia
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Hayton, Darren
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John, Viju Oomme ...
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visa fler...
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Maffei, Bruno
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Piccirillo, Luci ...
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Pisano, Giampaol ...
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Savini, Giorgio
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Sreerekha, T. R.
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visa färre...
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