Impact of calibration errors on CMB component separation using FastICA and ILC (2009)
Dick, Jason, Remazeilles, Mathieu, Delabrouille, Jacques
The separation of emissions from different astrophysical processes is an important step towards the understanding of observational data. This topic of component separation is of particular importance...
Samal, Pramoda Kumar, Saha, Rajib, Delabrouille, Jacques, Prunet, Simon, Jain, Pankaj, Souradeep, Tarun
We estimate CMB polarization and temperature power spectra using WMAP 5-year foreground contaminated maps. The power spectrum is estimated by using a model independent method, which does not utilize...
Observing the Evolution of the Universe (2009)
Aguirre, James, Amblard, Alexandre, Ashoorioon, Amjad, Baccigalupi, Carlo, Balbi, Amedeo, Bartlett, James, ...
How did the universe evolve? The fine angular scale (l>1000) temperature and polarization anisotropies in the CMB are a Rosetta stone for understanding the evolution of the universe. Through detailed...
Cardoso, Jean-Francois, Martin, Maude, Delabrouille, Jacques, Betoule, Marc, Patanchon, Guillaume
This paper offers a new point of view on component separation, based on a model of additive components which enjoys a much greater flexibility than more traditional linear component models. This...
Component Separation For Cosmic Microwave Background Data: A Blind (2007)
Approach Based On, Guillaume Patanchon, Hichem Snoussi, Jean-françois Cardoso, Jacques Delabrouille
We present a blind multi-detector multi-component spectral matching method for all sky observations of the cosmic microwave background, working on the spherical harmonics basis. The method allows to...
Beam mismatch effects in Cosmic Microwave Background polarization measurements (2007)
Rosset, Cyrille, Yurchenko, Vladimir, Delabrouille, Jacques, Kaplan, Jean, Giraud-Héraud, Yannick, Lamarre, Jean-Michel, ...
Measurement of cosmic microwave background polarization is today a major goal of observational cosmology. The level of the signal to measure, however, makes it very sensitive to various systematic...
Beam mismatch effects in Cosmic Microwave Background polarization measurements (2007)
Rosset, Cyrille, Yurchenko, Vladimir, Delabrouille, Jacques, Kaplan, Jean, Giraud-Héraud, Yannick, Lamarre, Jean-Michel, ...
Measurement of cosmic microwave background polarization is today a major goal of observational cosmology. The level of the signal to measure, however, makes it very sensitive to various systematic...
Beam mismatch effects in Cosmic Microwave Background polarization measurements (2007)
Rosset, Cyrille, Yurchenko, Vladimir, Delabrouille, Jacques, Kaplan, Jean, Giraud-Héraud, Yannick, Lamarre, Jean-Michel, ...
Measurement of cosmic microwave background polarization is today a major goal of observational cosmology. The level of the signal to measure, however, makes it very sensitive to various systematic...
CARDOSO, Jean-Francois, ABRIAL, Pierrick, MOUDDEN, Yassir, STARCK, Jean-Luc, DELABROUILLE, Jacques
Cet article décrit des statistiques de corrélation localisées en fréquence et position sur la sphère et leur application pour la séparation de composantes dans les observations multi-spectrales...
Beam mismatch effects in Cosmic Microwave Background polarization measurements (2004)
Rosset, Cyrille, Yurchenko, Vladimir, Delabrouille, Jacques, Kaplan, Jean, Giraud-Héraud, Yannick, Lamarre, Jean-Michel, ...
Measurement of cosmic microwave background polarization is today a major goal of observational cosmology. The level of the signal to measure, however, makes it very sensitive to various systematic...
Beam mismatch effects in Cosmic Microwave Background polarization measurements (2004)
Rosset, Cyrille, Yurchenko, Vladimir, Delabrouille, Jacques, Kaplan, Jean, Giraud-Héraud, Yannick, Lamarre, Jean-Michel, ...
Measurement of cosmic microwave background polarization is today a major goal of observational cosmology. The level of the signal to measure, however, makes it very sensitive to various systematic...
Beam mismatch effects in Cosmic Microwave Background polarization measurements (2004)
Rosset, Cyrille, Yurchenko, Vladimir, Delabrouille, Jacques, Kaplan, Jean, Giraud-Héraud, Yannick, Lamarre, Jean-Michel, ...
Measurement of cosmic microwave background polarization is today a major goal of observational cosmology. The level of the signal to measure, however, makes it very sensitive to various systematic...
Beam mismatch effects in Cosmic Microwave Background polarization measurements (2004)
Rosset, Cyrille, Yurchenko, Vladimir, Delabrouille, Jacques, Kaplan, Jean, Giraud-Héraud, Yannick, Lamarre, Jean-Michel, ...
Measurement of cosmic microwave background polarization is today a major goal of observational cosmology. The level of the signal to measure, however, makes it very sensitive to various systematic...
Independent Component Analysis (2003)
Of The Cosmic, Jean-françois Cardoso, Jacques Delabrouille, Guillaume Patanchon
This paper presents an application of ICA to astronomical imaging. A first section describes the astrophysical context and motivates the use of source separation ideas. A second section describes our...
Cardoso, Jean-Francois, Snoussi, Hichem, Delabrouille, Jacques, Patanchon, Guillaume
We present a new source separation method which maximizes the likelihood of a model of noisy mixtures of stationary, possibly Gaussian, independent components. The method has been devised to address...
Some sources of systematic errors on CMB polarized measurements with bolometers (2001)
Kaplan, Jean, Delabrouille, Jacques
Some sources of systematic errors, specific to polarized CMB measurements using bolometers, are examined. Although the evaluations we show have been made in the context of the Planck mission (and...