UCSB SOUTH POLE 1994 CMB ANISOTROPY MEASUREMENT CONSTRAINTS ON OPEN AND FLAT-Λ CDM COSMOGONIES

• Main Authors: Ken Ganga, Bharat Ratra, Joshua O. Gundersen, Naoshi Sugiyama
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 1996
• Subjects: South Pole; South pole
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.255.357; http://arxiv.org/pdf/astro-ph/9602141v1.pdf

Motivated by steadily improving cosmic microwave background (CMB) anisotropy data, we develop general methods to account for experimental and observational uncertainties in the likelihood analysis of data from a CMB anisotropy experiment. To properly account for the uncertainties requires measured information about various distribution functions (e.g., the calibration distribution function) which in our preliminary analysis here we assume are gaussian. We account for beamwidth and calibration uncertainties in the UCSB South Pole 1994 (SP94) experiment (Gundersen et al. 1995, hereafter G95), in likelihood analyses of the data (which we assume to be purely CMB anisotropy) that make use of model CMB anisotropy spectra in observationally-motivated, open and spatially-flat Λ, cold dark matter (CDM) cosmogonies. For the model CMB anisotropy spectra we consider, the SP94 experiment is sensitive to the CMB anisotropy on a somewhat larger, model-dependent, angular scale than the effective angular scale at which the relevant zero-lag SP94 window by itself (i.e., without