ar X iv : a st ro - p h / 98 10 19 6 v 1 1 3 O ct 1 99 8 Observations of the cosmic microwave background and implications for cosmology and large scale structure
نویسندگان
چکیده
Observations of the Cosmic Microwave Background (CMB) are discussed, with particular emphasis on current ground-based experiments and on future satellite, balloon and interferometer experiments. Observational techniques and the effects of contaminating foregrounds are highlighted. Recent CMB data is used with large scale structure (LSS) data to constrain cosmological parameters and the complementary nature of CMB, LSS and supernova distance data is emphasized.
منابع مشابه
ar X iv : a st ro - p h / 98 05 32 6 v 1 2 7 M ay 1 99 8 The Cosmic Microwave Background and Observational Convergence in the Ω m − Ω Λ Plane
I use the most recent cosmic microwave background (CMB) anisotropy measurements to constrain the leading cold dark matter models in the Ωm − ΩΛ plane. A narrow triangular region is preferred. This triangle is elongated in such a way that its intersection with even conservative versions of recent supernovae, cluster mass-to-light ratios and double radio source constraints, is small and provides ...
متن کاملX iv : a st ro - p h / 98 05 32 6 v 2 1 0 A ug 1 99 8 The Cosmic Microwave Background and Observational Convergence in the Ω m − Ω Λ Plane
I use the most recent cosmic microwave background (CMB) anisotropy measurements to constrain the leading cold dark matter models in the Ωm − ΩΛ plane. A narrow triangular region is preferred. This triangle is elongated in such a way that its intersection with even conservative versions of recent supernovae, cluster mass-to-light ratios and double radio source constraints, is small and provides ...
متن کاملar X iv : a st ro - p h / 98 10 19 8 v 1 1 3 O ct 1 99 8 NON - GAUSSIAN LIKELIHOOD FUNCTION ∗
I present here a generalization of the maximum likelihood method and the χ 2 method to the cases in which the data are not assumed to be Gaussian distributed. The method, based on the multivariate Edgeworth expansion, can find several as-trophysical applications. I mention only two of them. First, in the microwave background analysis, where it cannot be excluded that the initial perturbations a...
متن کاملar X iv : a st ro - p h / 98 12 32 8 v 1 1 7 D ec 1 99 8 MOND in the Early Universe
I explore some consequences of Milgrom’s modified dynamics for cosmology. There appear to be two promising tests for distinguishing MOND from CDM: (1) the rate of growth of structure and (2) the baryon fraction. These should be testable with observations of clusters at high redshift and the microwave background, respectively.
متن کاملar X iv : a st ro - p h / 98 09 23 8 v 3 1 1 Ju n 19 99 Minkowski Functionals and Cluster Analysis for CMB Maps
We suggest novel statistics for the CMB maps that are sensitive to non-Gaussian features. These statistics are natural generalizations of the geometrical and topological methods that have been already used in cosmology such as the cumulative distribution function and genus. We compute the distribution functions of the Partial Minkowski Functionals for the excursion set above or bellow a constan...
متن کامل