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A.T. Bajkova |
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Slide02
Statistical description of the CMB anisotropies and mapping of small-angle sky patches |
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Slide03
A model of the microwave sky |
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Slide04
The data analysis pipeline |
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Slide05
Spectral dependence of the Galactic components |
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Slide06
Contribution of the various components as a function of angular scale. Contour levels of the different components in the angular scale-frequency plane |
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Slide07
Physical model of the detected signal |
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Slide08
Component separation methods |
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Slide09
Testing of the Generalized Maximum Entropy Method (GMEM) for the CMB and point sources (PS) separation task |
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Slide10
Examples of different UV-coverages in two-dimensional Fourier space used for GMEM reconstruction of PS distribution |
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Slide11
Example N1 of separation of the CMB and PS components using the GMEM |
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Slide12
Power angular spectra of components shown in Fig. P3 |
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Slide13
Example N2 of separation of the CMB and PS for large number of weak point sources |
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Slide14
Example N3 of separation of the CMB and PS for larger number (than in Example N2) of weak point sources |
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Slide15
Example N4 of reconstruction of the CMB in place of strong nonGaussianity (Galactic plane) using Fienup-like iteration algorithm |
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Slide16
Formula for generation of the CMB and PS maps for simulation tasks |
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Slide17 Simulation of high-precision removal of PS from CMB detected maps using interpolation algorithm in places of non-Gaussian contaminations: (a)the CMB given map (b)given PS distribution (c)CMB+PS detected map (d)UV-coverage in Fourier space used for recover of PS (e)the reconstructed PS map (f)the CMB reconstructed map obtained after subtraction of the PS reconstructed map (g)places of PS contaminations (h)(i)improved CMB maps reconstructed using two different interpolation algorithms |
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Slide18
Angular power spectra of maps shown in Fig.P9 |
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Slide19
Angular power spectra of components in case of taking into account the instrumental pixel noise contribution |
1. Bajkova A.T. et al. Maximum entropy method for reconstruction of the CMB images. - Gravitation & Cosmology, Supplement I (2002), pp. 77-82, astro-ph/0205112.
2. Bajkova A.T. A method of separation of the point sources foreground from
the CMB maps. - Radiophysics & Quantum Electronics (in press).