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Foreground Separation Methods for Satellite and Balloon Experiments

Published online by Cambridge University Press:  26 May 2016

R. Belén Barreiro ,
Michael P. Hobson ,
Anthony N. Lasenby ,
Patricio Vielva ,
Enrique Martínez-González ,
José L. Sanz  and
Luigi. Toffolatti
R. Belén Barreiro
Affiliation:
Cavendish Laboratory, Madingley Road, Cambridge CB3 0HE, UK
Michael P. Hobson
Affiliation:
Cavendish Laboratory, Madingley Road, Cambridge CB3 0HE, UK
Anthony N. Lasenby
Affiliation:
Cavendish Laboratory, Madingley Road, Cambridge CB3 0HE, UK
Patricio Vielva
Affiliation:
IFCA (CSIC - UC), Avda. de los Castros s/n, 39005 Santander, Spain
Enrique Martínez-González
Affiliation:
IFCA (CSIC - UC), Avda. de los Castros s/n, 39005 Santander, Spain
José L. Sanz
Affiliation:
IFCA (CSIC - UC), Avda. de los Castros s/n, 39005 Santander, Spain
Luigi. Toffolatti
Affiliation:
Cavendish Laboratory, Madingley Road, Cambridge CB3 0HE, UK

Abstract

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A combined technique using the maximum-entropy method (MEM) and the mexican hat wavelet (MHW) to separate and reconstruct the physical components of the microwave sky is presented. We apply this method to simulated observations by the ESA Planck satellite in small patches of the sky. The reconstructed maps of the CMB and foregrounds are improved as compared to those obtained with MEM on its own. Moreover, more accurate point source catalogues are produced at each observing frequency. This technique may also be extended to deal with other multifrequency CMB experiments, including all-sky data.

Type
Part III: Primordial CMB Observations: Balloon and Satellite based
Information
Symposium - International Astronomical Union , Volume 201: New Cosmological Data and the Values of the Fundamental Parameters , 2005 , pp. 71 - 74
Copyright
Copyright © Astronomical Society of the Pacific 2005 

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