منابع مشابه
Variance ” in Small - Scale CMB Anisotropy Experiments
We discuss the effects of finite sky coverage and the uncertainty in extracting information about the power spectrum from experiments on small angular scales. In general the cosmic variance is enhanced by a factor of 4π/A, where A is the solid angle sampled by the experiment. As a rough guide, an experiment with sensitivity peaking at the ℓth multipole has to cover ∼ > ℓ independent patches to ...
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Measurements of CMB anisotropy and, more recently, polarization have played a very important role allowing precise determination of various parameters of the ‘standard’ cosmological model. The expectation of the paradigm of inflation and the generic prediction of the simplest realization of inflationary scenario in the early universe have also been established – ‘acausally’ correlated initial p...
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The cosmic microwave background (CMB) provides us with our most direct observational window to the early universe. Observations of the temperature and polarization anisotropies in the CMB have played a critical role in defining the now-standard cosmological model. In this contribution we review some of the basics of CMB science, highlighting the role of observations made with ground-based and b...
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ژورنال
عنوان ژورنال: Physics Reports
سال: 2000
ISSN: 0370-1573
DOI: 10.1016/s0370-1573(00)00026-0