Multidetector multicomponent spectral matching and applications for cosmic microwave background data analysis
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.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- December 2003
- DOI:
- 10.1111/j.1365-2966.2003.07069.x
- arXiv:
- arXiv:astro-ph/0211504
- Bibcode:
- 2003MNRAS.346.1089D
- Keywords:
-
- methods: data analysis;
- cosmic microwave background;
- cosmology: observations;
- Astrophysics
- E-Print:
- 15 pages, 7 Postscript figures, submitted to MNRAS