Observing cosmic microwave background polarization through ice
Observing cosmic microwave background polarization through ice
复制标题
透过冰观察宇宙微波背景偏振
DOI:
10.1111/j.1365-2966.2007.11464.x
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发表时间:
2007
影响因子:
4.8
通讯作者:
Pietranera L
中科院分区:
文献类型:
--
作者:
Pietranera L
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.
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DOI:
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发表时间:
2003
期刊:
影响因子:
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作者:
S. Hanany;P. R. U. O. Minnesota;Twin Cities;Minneapolis Massachusetts Institute of Technology;Cambridge;Massachusetts
通讯作者:
Massachusetts
DOI:
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发表时间:
2004
期刊:
影响因子:
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发表时间:
2004
期刊:
SPIE Remote Sensing
影响因子:
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作者:
D. Hayton;Peter A. R. Ade;Clare Lee;K. F. Evans
通讯作者:
K. F. Evans
DOI:
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发表时间:
2006
期刊:
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作者:
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C. Emde
DOI:
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发表时间:
2001
期刊:
影响因子:
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作者:
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M. Swain