4 papers · 1 filter
CMB Cosmological Parameter Estimation: Methods and Current Results
M. Douspis, J. G. Bartlett, A. Blanchard +1
The majority of present efforts to constrain cosmological parameters with cosmic microwave background (CMB) anisotropy data employ approximate likelihood functions, the time consum…
A New Local Temperature Distribution Function for X-ray Clusters: Cosmological Applications
A. Blanchard, R. Sadat, J. G. Bartlett +1
(abridged) We present a new determination of the local temperature function of X-ray clusters. We use a new sample comprising fifty clusters for which temperature information is no…
Approximating the Likelihood Function of CMB Experiments
J. G. Bartlett, A. Blanchard, M. Douspis +1
We discuss the problem of constraining cosmological parameters with cosmic microwave background band--power estimates. Because these latter are variances, they do not have gaussian…
Constraints on Cosmological Parameters from Existing CMB Data
J. G. Bartlett, A. Blanchard, M. Le Dour +2
We use current cosmic microwave background data to constrain cosmological parameters. The results are presented as confidence regions in the (--) -- plane for both open and…