Multidetector multicomponent spectral matching and applications for cosmic microwave background data analysis |
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| Authors: | J Delabrouille J-F Cardoso G Patanchon |
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| Institution: | PCC –Collège de France, 11, place Marcelin Berthelot, F-75231 Paris, France;CNRS/ENST –46, rue Barrault, 75634 Paris, France |
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| Abstract: | We present a new method for analysing multidetector maps containing several astrophysical components. Our method, based on matching the data to a model in the spectral domain, permits us to estimate jointly the spatial power spectra of the components and of the noise, as well as their mixing coefficients. It is of particular relevance for analysis of millimetre-wave maps of cosmic microwave background (CMB) anisotropies. |
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| Keywords: | methods: data analysis cosmic microwave background cosmology: observations |
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