EFFECTS OF ATMOSPHERIC EMISSION ON GROUND-BASED MICROWAVE BACKGROUND MEASUREMENTS
We present an analysis of multifrequency measurements of atmospheric emission in the Rayleigh-jeans portion of the cosmic microwave background spectrum (1-90 GHz) taken since 1986 from White Mountain, CA, and from the South Pole. Correlations of simultaneous data at 10 and 90 GHz and accurate low-fr...
Published in: | The Astrophysical Journal |
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Online Access: | https://hdl.handle.net/20.500.11767/13747 https://doi.org/10.1086/175937 |
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ftsissa:oai:iris.sissa.it:20.500.11767/13747 2023-05-15T18:21:56+02:00 EFFECTS OF ATMOSPHERIC EMISSION ON GROUND-BASED MICROWAVE BACKGROUND MEASUREMENTS BERSANELLI M BENSADOUN M DEAMICI G KOGUT A LEVIN S LIMON M MAINO D SMOOT GF WITEBSKY C. Danese, Luigi Bersanelli, M Bensadoun, M Danese, Luigi Deamici, G Kogut, A Levin, S Limon, M Maino, D Smoot, Gf Witebsky, C. 1995 https://hdl.handle.net/20.500.11767/13747 https://doi.org/10.1086/175937 unknown info:eu-repo/semantics/altIdentifier/wos/WOS:A1995RJ48900002 volume:448 issue:1 firstpage:8 lastpage:16 numberofpages:9 journal:THE ASTROPHYSICAL JOURNAL http://hdl.handle.net/20.500.11767/13747 doi:10.1086/175937 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-11944256104 info:eu-repo/semantics/article 1995 ftsissa https://doi.org/20.500.11767/1374710.1086/175937 2023-03-21T23:26:32Z We present an analysis of multifrequency measurements of atmospheric emission in the Rayleigh-jeans portion of the cosmic microwave background spectrum (1-90 GHz) taken since 1986 from White Mountain, CA, and from the South Pole. Correlations of simultaneous data at 10 and 90 GHz and accurate low-frequency measurements show good agreement with model predictions for both sites. Our data from the South Pole 1989 campaign combined with real-time measurements of the local atmospheric profiles provide accurate verification of the expected independent contributions of H2O and O-2 emission. We show that variations on the order of 10% of the oxygen emission (both resonant and nonresonant components) are present on timescales of hours to days, mainly due to the evolution of the atmospheric pressure profile. Oxygen emission fluctuations appear larger than previously expected and may have significant consequences for ground-based cosmic microwave background experiments. Article in Journal/Newspaper South pole International School for Advanced Studies (SISSA), Trieste: SISSA Digital Library (SDL) South Pole The Astrophysical Journal 448 8 |
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Open Polar |
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International School for Advanced Studies (SISSA), Trieste: SISSA Digital Library (SDL) |
op_collection_id |
ftsissa |
language |
unknown |
description |
We present an analysis of multifrequency measurements of atmospheric emission in the Rayleigh-jeans portion of the cosmic microwave background spectrum (1-90 GHz) taken since 1986 from White Mountain, CA, and from the South Pole. Correlations of simultaneous data at 10 and 90 GHz and accurate low-frequency measurements show good agreement with model predictions for both sites. Our data from the South Pole 1989 campaign combined with real-time measurements of the local atmospheric profiles provide accurate verification of the expected independent contributions of H2O and O-2 emission. We show that variations on the order of 10% of the oxygen emission (both resonant and nonresonant components) are present on timescales of hours to days, mainly due to the evolution of the atmospheric pressure profile. Oxygen emission fluctuations appear larger than previously expected and may have significant consequences for ground-based cosmic microwave background experiments. |
author2 |
Bersanelli, M Bensadoun, M Danese, Luigi Deamici, G Kogut, A Levin, S Limon, M Maino, D Smoot, Gf Witebsky, C. |
format |
Article in Journal/Newspaper |
author |
BERSANELLI M BENSADOUN M DEAMICI G KOGUT A LEVIN S LIMON M MAINO D SMOOT GF WITEBSKY C. Danese, Luigi |
spellingShingle |
BERSANELLI M BENSADOUN M DEAMICI G KOGUT A LEVIN S LIMON M MAINO D SMOOT GF WITEBSKY C. Danese, Luigi EFFECTS OF ATMOSPHERIC EMISSION ON GROUND-BASED MICROWAVE BACKGROUND MEASUREMENTS |
author_facet |
BERSANELLI M BENSADOUN M DEAMICI G KOGUT A LEVIN S LIMON M MAINO D SMOOT GF WITEBSKY C. Danese, Luigi |
author_sort |
BERSANELLI M |
title |
EFFECTS OF ATMOSPHERIC EMISSION ON GROUND-BASED MICROWAVE BACKGROUND MEASUREMENTS |
title_short |
EFFECTS OF ATMOSPHERIC EMISSION ON GROUND-BASED MICROWAVE BACKGROUND MEASUREMENTS |
title_full |
EFFECTS OF ATMOSPHERIC EMISSION ON GROUND-BASED MICROWAVE BACKGROUND MEASUREMENTS |
title_fullStr |
EFFECTS OF ATMOSPHERIC EMISSION ON GROUND-BASED MICROWAVE BACKGROUND MEASUREMENTS |
title_full_unstemmed |
EFFECTS OF ATMOSPHERIC EMISSION ON GROUND-BASED MICROWAVE BACKGROUND MEASUREMENTS |
title_sort |
effects of atmospheric emission on ground-based microwave background measurements |
publishDate |
1995 |
url |
https://hdl.handle.net/20.500.11767/13747 https://doi.org/10.1086/175937 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:A1995RJ48900002 volume:448 issue:1 firstpage:8 lastpage:16 numberofpages:9 journal:THE ASTROPHYSICAL JOURNAL http://hdl.handle.net/20.500.11767/13747 doi:10.1086/175937 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-11944256104 |
op_doi |
https://doi.org/20.500.11767/1374710.1086/175937 |
container_title |
The Astrophysical Journal |
container_volume |
448 |
container_start_page |
8 |
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1766201278834147328 |