Measurements of the Cosmic Microwave Background Temperature at 1.47 GHz
We have used a radio-frequency-gain total-power radiometer to measure the intensity of the cosmic microwave background (CMB) at a frequency of 1.47 GHz (20.4 cm wavelength) from White Mountain, California in 1988 September and from the South Pole, Antarctica in 1989 December. The CMB thermodynamic t...
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ftunivsthongkong:oai:repository.ust.hk:1783.1-81467 2023-05-15T14:07:43+02:00 Measurements of the Cosmic Microwave Background Temperature at 1.47 GHz Bensadoun, Marc J. Bersanelli, Marco Kogut, Alan J. De Amici, Giovanni Levin, Steven M. Limon, Michele Smoot, George F. Witebsky, Chris 1993 http://repository.ust.hk/ir/Record/1783.1-81467 https://doi.org/10.1086/172637 http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=&rft.volume=&rft.issue=&rft.date=&rft.spage=&rft.aulast=&rft.aufirst=&rft.atitle=Measurements%20of%20the%20Cosmic%20Microwave%20Background%20Temperature%20at%201.47%20GHz&rft.title= http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=A1993LB03800001 http://www.scopus.com/record/display.url?eid=2-s2.0-12044254667&origin=inward English eng http://repository.ust.hk/ir/Record/1783.1-81467 Astrophysical Journal, v. 409, (1), 1993, p. 1-13 0004-637X https://doi.org/10.1086/172637 http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=&rft.volume=&rft.issue=&rft.date=&rft.spage=&rft.aulast=&rft.aufirst=&rft.atitle=Measurements%20of%20the%20Cosmic%20Microwave%20Background%20Temperature%20at%201.47%20GHz&rft.title= http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=A1993LB03800001 http://www.scopus.com/record/display.url?eid=2-s2.0-12044254667&origin=inward Cosmic microwave background Cosmology Observations Article 1993 ftunivsthongkong https://doi.org/10.1086/172637 2019-09-03T18:11:04Z We have used a radio-frequency-gain total-power radiometer to measure the intensity of the cosmic microwave background (CMB) at a frequency of 1.47 GHz (20.4 cm wavelength) from White Mountain, California in 1988 September and from the South Pole, Antarctica in 1989 December. The CMB thermodynamic temperature, T(CMB), is 2.27 +/- 0.25 K (68% confidence limit) measured from White Mountain and 2.26 +/- 0.20 K from the South Pole site. The combined result is 2.26 +/- 0.19 K. The correction for Galactic emission has been derived from scaled low-frequency maps and constitutes the main source of error. The atmospheric signal is extrapolated from our zenith scan measurements at higher frequencies. These results are consistent with our previous measurement at 1.41 GHz (Levin et al. 1988) and approximately 2.5 sigma from the 2.74 +/- 0.01 K global average CMB temperature. Article in Journal/Newspaper Antarc* Antarctica South pole South pole The Hong Kong University of Science and Technology: HKUST Institutional Repository Levin ENVELOPE(43.352,43.352,66.332,66.332) South Pole The Astrophysical Journal 409 1 |
institution |
Open Polar |
collection |
The Hong Kong University of Science and Technology: HKUST Institutional Repository |
op_collection_id |
ftunivsthongkong |
language |
English |
topic |
Cosmic microwave background Cosmology Observations |
spellingShingle |
Cosmic microwave background Cosmology Observations Bensadoun, Marc J. Bersanelli, Marco Kogut, Alan J. De Amici, Giovanni Levin, Steven M. Limon, Michele Smoot, George F. Witebsky, Chris Measurements of the Cosmic Microwave Background Temperature at 1.47 GHz |
topic_facet |
Cosmic microwave background Cosmology Observations |
description |
We have used a radio-frequency-gain total-power radiometer to measure the intensity of the cosmic microwave background (CMB) at a frequency of 1.47 GHz (20.4 cm wavelength) from White Mountain, California in 1988 September and from the South Pole, Antarctica in 1989 December. The CMB thermodynamic temperature, T(CMB), is 2.27 +/- 0.25 K (68% confidence limit) measured from White Mountain and 2.26 +/- 0.20 K from the South Pole site. The combined result is 2.26 +/- 0.19 K. The correction for Galactic emission has been derived from scaled low-frequency maps and constitutes the main source of error. The atmospheric signal is extrapolated from our zenith scan measurements at higher frequencies. These results are consistent with our previous measurement at 1.41 GHz (Levin et al. 1988) and approximately 2.5 sigma from the 2.74 +/- 0.01 K global average CMB temperature. |
format |
Article in Journal/Newspaper |
author |
Bensadoun, Marc J. Bersanelli, Marco Kogut, Alan J. De Amici, Giovanni Levin, Steven M. Limon, Michele Smoot, George F. Witebsky, Chris |
author_facet |
Bensadoun, Marc J. Bersanelli, Marco Kogut, Alan J. De Amici, Giovanni Levin, Steven M. Limon, Michele Smoot, George F. Witebsky, Chris |
author_sort |
Bensadoun, Marc J. |
title |
Measurements of the Cosmic Microwave Background Temperature at 1.47 GHz |
title_short |
Measurements of the Cosmic Microwave Background Temperature at 1.47 GHz |
title_full |
Measurements of the Cosmic Microwave Background Temperature at 1.47 GHz |
title_fullStr |
Measurements of the Cosmic Microwave Background Temperature at 1.47 GHz |
title_full_unstemmed |
Measurements of the Cosmic Microwave Background Temperature at 1.47 GHz |
title_sort |
measurements of the cosmic microwave background temperature at 1.47 ghz |
publishDate |
1993 |
url |
http://repository.ust.hk/ir/Record/1783.1-81467 https://doi.org/10.1086/172637 http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=&rft.volume=&rft.issue=&rft.date=&rft.spage=&rft.aulast=&rft.aufirst=&rft.atitle=Measurements%20of%20the%20Cosmic%20Microwave%20Background%20Temperature%20at%201.47%20GHz&rft.title= http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=A1993LB03800001 http://www.scopus.com/record/display.url?eid=2-s2.0-12044254667&origin=inward |
long_lat |
ENVELOPE(43.352,43.352,66.332,66.332) |
geographic |
Levin South Pole |
geographic_facet |
Levin South Pole |
genre |
Antarc* Antarctica South pole South pole |
genre_facet |
Antarc* Antarctica South pole South pole |
op_relation |
http://repository.ust.hk/ir/Record/1783.1-81467 Astrophysical Journal, v. 409, (1), 1993, p. 1-13 0004-637X https://doi.org/10.1086/172637 http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=&rft.volume=&rft.issue=&rft.date=&rft.spage=&rft.aulast=&rft.aufirst=&rft.atitle=Measurements%20of%20the%20Cosmic%20Microwave%20Background%20Temperature%20at%201.47%20GHz&rft.title= http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=A1993LB03800001 http://www.scopus.com/record/display.url?eid=2-s2.0-12044254667&origin=inward |
op_doi |
https://doi.org/10.1086/172637 |
container_title |
The Astrophysical Journal |
container_volume |
409 |
container_start_page |
1 |
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1766279733115355136 |