Intensity and polarization of the atmospheric emission at millimetric wavelengths at Dome Concordia
Atmospheric emission is a dominant source of disturbance in ground-based astronomy at mm wavelengths. The Antarctic plateau is recognized to be an ideal site for mm and sub-mm observations, and the French/Italian base of Dome C is among the best sites on Earth for these observations. In this paper w...
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ftdatacite:10.48550/arxiv.1203.5615 2023-05-15T13:31:35+02:00 Intensity and polarization of the atmospheric emission at millimetric wavelengths at Dome Concordia Battistelli, E. S. Amico, G. Baù, A. Bergé, L. Bréelle, É. Charlassier, R. Collin, S. Cruciani, A. de Bernardis, P. Dufour, C. Dumoulin, L. Gervasi, M. Giard, M. Giordano, C. Giraud-Héraud, Y. Guglielmi, L. Hamilton, J. -C. Landé, J. Maffei, B. Maiello, M. Marnieros, S. Masi, S. Passerini, A. Piacentini, F. Piat, M. Piccirillo, L. Pisano, G. Polenta, G. Rosset, C. Salatino, M. Schillaci, A. Sordini, R. Spinelli, S. Tartari, A. Zannoni, M. 2012 https://dx.doi.org/10.48550/arxiv.1203.5615 https://arxiv.org/abs/1203.5615 unknown arXiv https://dx.doi.org/10.1111/j.1365-2966.2012.20951.x arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Instrumentation and Methods for Astrophysics astro-ph.IM Atmospheric and Oceanic Physics physics.ao-ph FOS Physical sciences article-journal Article ScholarlyArticle Text 2012 ftdatacite https://doi.org/10.48550/arxiv.1203.5615 https://doi.org/10.1111/j.1365-2966.2012.20951.x 2022-04-01T14:05:42Z Atmospheric emission is a dominant source of disturbance in ground-based astronomy at mm wavelengths. The Antarctic plateau is recognized to be an ideal site for mm and sub-mm observations, and the French/Italian base of Dome C is among the best sites on Earth for these observations. In this paper we present measurements, performed using the BRAIN-pathfinder experiment, at Dome C of the atmospheric emission in intensity and polarization at 150GHz, one of the best observational frequencies for CMB observations when considering cosmic signal intensity, atmospheric transmission, detectors sensitivity, and foreground removal. Careful characterization of the air-mass synchronous emission has been performed, acquiring more that 380 elevation scans (i.e. "skydip") during the third BRAIN-pathfinder summer campaign in December 2009/January 2010. The extremely high transparency of the Antarctic atmosphere over Dome Concordia is proven by the very low measured optical depth: =0.050 \pm 0.003 \pm 0.011 where the first error is statistical and the second is systematic error. Mid term stability, over the summer campaign, of the atmosphere emission has also been studied. Adapting the radiative transfer atmosphere emission model "am" to the particular conditions found at Dome C, we also infer the level of the PWV content of the atmosphere, notoriously the main source of disturbance in millimetric astronomy (=0.77 +/- 0.06 + 0.15 - 0.12 mm). Upper limits on the air-mass correlated polarized signal are also placed for the first time. The degree of circular polarization of atmospheric emission is found to be lower than 0.2% (95%CL), while the degree of linear polarization is found to be lower than 0.1% (95%CL). These limits include signal-correlated instrumental spurious polarization. : MNRAS accepted for publication. Refined analysis Text Antarc* Antarctic DataCite Metadata Store (German National Library of Science and Technology) Antarctic The Antarctic |
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DataCite Metadata Store (German National Library of Science and Technology) |
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ftdatacite |
language |
unknown |
topic |
Instrumentation and Methods for Astrophysics astro-ph.IM Atmospheric and Oceanic Physics physics.ao-ph FOS Physical sciences |
spellingShingle |
Instrumentation and Methods for Astrophysics astro-ph.IM Atmospheric and Oceanic Physics physics.ao-ph FOS Physical sciences Battistelli, E. S. Amico, G. Baù, A. Bergé, L. Bréelle, É. Charlassier, R. Collin, S. Cruciani, A. de Bernardis, P. Dufour, C. Dumoulin, L. Gervasi, M. Giard, M. Giordano, C. Giraud-Héraud, Y. Guglielmi, L. Hamilton, J. -C. Landé, J. Maffei, B. Maiello, M. Marnieros, S. Masi, S. Passerini, A. Piacentini, F. Piat, M. Piccirillo, L. Pisano, G. Polenta, G. Rosset, C. Salatino, M. Schillaci, A. Sordini, R. Spinelli, S. Tartari, A. Zannoni, M. Intensity and polarization of the atmospheric emission at millimetric wavelengths at Dome Concordia |
topic_facet |
Instrumentation and Methods for Astrophysics astro-ph.IM Atmospheric and Oceanic Physics physics.ao-ph FOS Physical sciences |
description |
Atmospheric emission is a dominant source of disturbance in ground-based astronomy at mm wavelengths. The Antarctic plateau is recognized to be an ideal site for mm and sub-mm observations, and the French/Italian base of Dome C is among the best sites on Earth for these observations. In this paper we present measurements, performed using the BRAIN-pathfinder experiment, at Dome C of the atmospheric emission in intensity and polarization at 150GHz, one of the best observational frequencies for CMB observations when considering cosmic signal intensity, atmospheric transmission, detectors sensitivity, and foreground removal. Careful characterization of the air-mass synchronous emission has been performed, acquiring more that 380 elevation scans (i.e. "skydip") during the third BRAIN-pathfinder summer campaign in December 2009/January 2010. The extremely high transparency of the Antarctic atmosphere over Dome Concordia is proven by the very low measured optical depth: =0.050 \pm 0.003 \pm 0.011 where the first error is statistical and the second is systematic error. Mid term stability, over the summer campaign, of the atmosphere emission has also been studied. Adapting the radiative transfer atmosphere emission model "am" to the particular conditions found at Dome C, we also infer the level of the PWV content of the atmosphere, notoriously the main source of disturbance in millimetric astronomy (=0.77 +/- 0.06 + 0.15 - 0.12 mm). Upper limits on the air-mass correlated polarized signal are also placed for the first time. The degree of circular polarization of atmospheric emission is found to be lower than 0.2% (95%CL), while the degree of linear polarization is found to be lower than 0.1% (95%CL). These limits include signal-correlated instrumental spurious polarization. : MNRAS accepted for publication. Refined analysis |
format |
Text |
author |
Battistelli, E. S. Amico, G. Baù, A. Bergé, L. Bréelle, É. Charlassier, R. Collin, S. Cruciani, A. de Bernardis, P. Dufour, C. Dumoulin, L. Gervasi, M. Giard, M. Giordano, C. Giraud-Héraud, Y. Guglielmi, L. Hamilton, J. -C. Landé, J. Maffei, B. Maiello, M. Marnieros, S. Masi, S. Passerini, A. Piacentini, F. Piat, M. Piccirillo, L. Pisano, G. Polenta, G. Rosset, C. Salatino, M. Schillaci, A. Sordini, R. Spinelli, S. Tartari, A. Zannoni, M. |
author_facet |
Battistelli, E. S. Amico, G. Baù, A. Bergé, L. Bréelle, É. Charlassier, R. Collin, S. Cruciani, A. de Bernardis, P. Dufour, C. Dumoulin, L. Gervasi, M. Giard, M. Giordano, C. Giraud-Héraud, Y. Guglielmi, L. Hamilton, J. -C. Landé, J. Maffei, B. Maiello, M. Marnieros, S. Masi, S. Passerini, A. Piacentini, F. Piat, M. Piccirillo, L. Pisano, G. Polenta, G. Rosset, C. Salatino, M. Schillaci, A. Sordini, R. Spinelli, S. Tartari, A. Zannoni, M. |
author_sort |
Battistelli, E. S. |
title |
Intensity and polarization of the atmospheric emission at millimetric wavelengths at Dome Concordia |
title_short |
Intensity and polarization of the atmospheric emission at millimetric wavelengths at Dome Concordia |
title_full |
Intensity and polarization of the atmospheric emission at millimetric wavelengths at Dome Concordia |
title_fullStr |
Intensity and polarization of the atmospheric emission at millimetric wavelengths at Dome Concordia |
title_full_unstemmed |
Intensity and polarization of the atmospheric emission at millimetric wavelengths at Dome Concordia |
title_sort |
intensity and polarization of the atmospheric emission at millimetric wavelengths at dome concordia |
publisher |
arXiv |
publishDate |
2012 |
url |
https://dx.doi.org/10.48550/arxiv.1203.5615 https://arxiv.org/abs/1203.5615 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
https://dx.doi.org/10.1111/j.1365-2966.2012.20951.x |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.1203.5615 https://doi.org/10.1111/j.1365-2966.2012.20951.x |
_version_ |
1766019072553648128 |