ARGO CMB Anisotropy Measurement Constraints on Open and Flat-Lambda CDM Cosmogonies
We use data from the ARGO cosmic microwave background (CMB) anisotropy experiment to constrain cosmogonies. We account for the ARGO beamwidth and calibration uncertainties, and marginalize over the offset removed from the data. Our derived amplitudes of the CMB anisotropy detected by the ARGO experi...
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ftcern:oai:cds.cern.ch:361140 2023-05-15T18:22:39+02:00 ARGO CMB Anisotropy Measurement Constraints on Open and Flat-Lambda CDM Cosmogonies Ratra, B Ganga, K Stompor, R Sugiyama, N De Bernardis, P Górski, K M 1999 http://cds.cern.ch/record/361140 eng eng http://cds.cern.ch/record/361140 astro-ph/9807298 KSU-PT-98-2 KUNS-1505 oai:cds.cern.ch:361140 Astrophysics and Astronomy 1999 ftcern 2018-07-28T03:43:42Z We use data from the ARGO cosmic microwave background (CMB) anisotropy experiment to constrain cosmogonies. We account for the ARGO beamwidth and calibration uncertainties, and marginalize over the offset removed from the data. Our derived amplitudes of the CMB anisotropy detected by the ARGO experiment are smaller than those derived previously. We consider open and spatially-flat-Lambda cold dark matter cosmogonies, with clustered-mass density parameter Omega_0 in the range 0.1-1, baryonic-mass density parameter Omega_B in the range (0.005-0.029)h^{-2}, and age of the universe t_0 in the range (10--20) Gyr. Marginalizing over all parameters but Omega_0, the ARGO data favors an open (spatially-flat-Lambda) model with Omega_0= 0.23 (0.1). However, these numerical values are model dependent. At the 2 sigma confidence level model normalizations deduced from the ARGO data are consistent with those drawn from the UCSB South Pole 1994, MAX 4+5, White Dish, and SuZIE data sets. The ARGO open model normalizations are also consistent with those deduced from the DMR data. However, for most spatially-flat-Lambda models the DMR normalizations are more than 2 sigma above the ARGO ones. Other/Unknown Material South pole CERN Document Server (CDS) Lambda ENVELOPE(-62.983,-62.983,-64.300,-64.300) South Pole |
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English |
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Astrophysics and Astronomy |
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Astrophysics and Astronomy Ratra, B Ganga, K Stompor, R Sugiyama, N De Bernardis, P Górski, K M ARGO CMB Anisotropy Measurement Constraints on Open and Flat-Lambda CDM Cosmogonies |
topic_facet |
Astrophysics and Astronomy |
description |
We use data from the ARGO cosmic microwave background (CMB) anisotropy experiment to constrain cosmogonies. We account for the ARGO beamwidth and calibration uncertainties, and marginalize over the offset removed from the data. Our derived amplitudes of the CMB anisotropy detected by the ARGO experiment are smaller than those derived previously. We consider open and spatially-flat-Lambda cold dark matter cosmogonies, with clustered-mass density parameter Omega_0 in the range 0.1-1, baryonic-mass density parameter Omega_B in the range (0.005-0.029)h^{-2}, and age of the universe t_0 in the range (10--20) Gyr. Marginalizing over all parameters but Omega_0, the ARGO data favors an open (spatially-flat-Lambda) model with Omega_0= 0.23 (0.1). However, these numerical values are model dependent. At the 2 sigma confidence level model normalizations deduced from the ARGO data are consistent with those drawn from the UCSB South Pole 1994, MAX 4+5, White Dish, and SuZIE data sets. The ARGO open model normalizations are also consistent with those deduced from the DMR data. However, for most spatially-flat-Lambda models the DMR normalizations are more than 2 sigma above the ARGO ones. |
author |
Ratra, B Ganga, K Stompor, R Sugiyama, N De Bernardis, P Górski, K M |
author_facet |
Ratra, B Ganga, K Stompor, R Sugiyama, N De Bernardis, P Górski, K M |
author_sort |
Ratra, B |
title |
ARGO CMB Anisotropy Measurement Constraints on Open and Flat-Lambda CDM Cosmogonies |
title_short |
ARGO CMB Anisotropy Measurement Constraints on Open and Flat-Lambda CDM Cosmogonies |
title_full |
ARGO CMB Anisotropy Measurement Constraints on Open and Flat-Lambda CDM Cosmogonies |
title_fullStr |
ARGO CMB Anisotropy Measurement Constraints on Open and Flat-Lambda CDM Cosmogonies |
title_full_unstemmed |
ARGO CMB Anisotropy Measurement Constraints on Open and Flat-Lambda CDM Cosmogonies |
title_sort |
argo cmb anisotropy measurement constraints on open and flat-lambda cdm cosmogonies |
publishDate |
1999 |
url |
http://cds.cern.ch/record/361140 |
long_lat |
ENVELOPE(-62.983,-62.983,-64.300,-64.300) |
geographic |
Lambda South Pole |
geographic_facet |
Lambda South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
http://cds.cern.ch/record/361140 astro-ph/9807298 KSU-PT-98-2 KUNS-1505 oai:cds.cern.ch:361140 |
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1766202065275584512 |