CMB Anisotropy Constraints on Open and Flat-Λ CDM Cosmogonies from UCSB South Pole, ARGO, MAX, White Dish, and SuZIE Data

• Main Authors: Ucsb South Pole, Radoslaw Stompor, White Dish, Suzie Data, Naoshi, Ken Ganga, Bharat Ratra, Graça Rocha, Naoshi Sugiyama, Krzysztof M. G'orski
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 1998
• Subjects: South Pole; South pole
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.41.6984

We use combinations of ten small-scale cosmic microwave background anisotropy data sets from the UCSB South Pole 1994, ARGO, MAX 4 and 5, White Dish and SuZIE experiments to constrain cosmogonies. We account for known systematic uncertainties in the analysis. We consider open and spatially-flat- cold dark matter cosmogonies, with nonrelativistic-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 \Gamma2 , and age of the universe t 0 in the range (10--20) Gyr. Marginalizing over all parameters but\Omega 0 , the combined small-scale data favors an \Omega 0 ' 1 (1) open (flat-) model. Excluding the smallest angular scale SuZIE data, an \Omega 0 ' 0.3 (1) open (flat-) model is favored. Considering only multi-frequency data with error bars consistent with sample variance and noise considerations (i.e., the South Pole 1994 Ka band, the MAX 4 ' Draconis, and the MAX 5 HR5127 data), an \Omega 0 ' 0.1 (1) open (flat-).