Perspectives of Space Submillimeter Astronomy
St. Petersburg, Russia, 30 September - 2 October, 2002

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P01.GIF

A.T. Bajkova
The Methods of the CMB power angular spectrum reconstruction

P02.GIF Slide02
Statistical description of the CMB anisotropies and mapping of small-angle sky patches
P03.GIF Slide03
A model of the microwave sky
P04.GIF Slide04
The data analysis pipeline
P05.GIF Slide05
Spectral dependence of the Galactic components
P06.GIF Slide06
Contribution of the various components as a function of angular scale.
Contour levels of the different components in the angular scale-frequency plane
P07.GIF Slide07
Physical model of the detected signal
P08.GIF Slide08
Component separation methods
P09.GIF Slide09
Testing of the Generalized Maximum Entropy Method (GMEM) for the CMB and point sources (PS) separation task
P10.GIF Slide10
Examples of different UV-coverages in two-dimensional Fourier space used for GMEM reconstruction of PS distribution
P11.JPG Slide11
Example N1 of separation of the CMB and PS components using the GMEM
P12.GIF Slide12
Power angular spectra of components shown in Fig. P3
P13.JPG Slide13
Example N2 of separation of the CMB and PS for large number of weak point sources
P14.JPG Slide14
Example N3 of separation of the CMB and PS for larger number (than in Example N2) of weak point sources
P15.JPG Slide15
Example N4 of reconstruction of the CMB in place of strong nonGaussianity (Galactic plane) using Fienup-like iteration algorithm
P16.GIF Slide16
Formula for generation of the CMB and PS maps for simulation tasks
P17.JPG 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
P18.GIF Slide18
Angular power spectra of maps shown in Fig.P9
P19.GIF Slide19
Angular power spectra of components in case of taking into account the instrumental pixel noise contribution

References:

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).