A modified χ2-test for cosmic microwave background analyses
نویسندگان
چکیده
منابع مشابه
23 . Cosmic microwave background 1 23 . COSMIC MICROWAVE BACKGROUND
The energy content in radiation from beyond our Galaxy is dominated by the Cosmic Microwave Background (CMB), discovered in 1965 [1]. The spectrum of the CMB is well described by a blackbody function with T = 2.725 K. This spectral form is one of the main pillars of the hot Big Bang model for the early Universe. The lack of any observed deviations from a blackbody spectrum constrains physical p...
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We asses the contribution to the observed large scale anisotropy of the cosmic microwave background radiation, arising from both gravity waves as well as adiabatic density perturbations, generated by a common inflationary mechanism in the early Universe. We find that for inflationary models predicting power law primordial spectra |δk| ∝ k, the relative contribution to the quadrupole anisotropy ...
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Fig. 2:The power spectrum of CMB anisotropies as seen by BOOMEranG.The first peak corresponds to an angular scale of about 1degree as predicted for it "flat Universe" (i.e., a Universe where the spatial part of the metric is Euclidean). ';2 4000 .3 Fig. 1: Map of the Cosmic Microwave Background obtained by the BOOMERanG experiment.The one-degree-Iike bumps ofthe CMS emission are tiny local fluc...
متن کاملCosmic Microwave Background astronomy
described here is my own, unless specifically stated otherwise. To the best of my knowledge it has not, nor has any similar dissertation, been submitted for a degree, diploma or other qualification at this, or any other university. This dissertation does not exceed 60 000 words in length. To Isabel and Ffion ii I am not sure how the universe was formed. But it knew how to do it, and that is the...
متن کاملThe Cosmic Microwave Background
I review the discovery of the temperature fluctuations in the cosmic microwave background radiation. The underlying theory and the implications for cosmology are reviewed, and I describe the prospects for future progress.
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2003
ISSN: 0035-8711,1365-2966
DOI: 10.1046/j.1365-8711.2003.06956.x