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G. Roudier

Researcher at California Institute of Technology

Publications -  188
Citations -  77342

G. Roudier is an academic researcher from California Institute of Technology. The author has contributed to research in topics: Planck & Cosmic microwave background. The author has an hindex of 104, co-authored 186 publications receiving 72114 citations. Previous affiliations of G. Roudier include Centre national de la recherche scientifique & University of Paris.

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Planck intermediate results: XLVI. Reduction of large-scale systematic effects in HFI polarization maps and estimation of the reionization optical depth

Nabila Aghanim, +218 more
- 01 Dec 2016 - 
TL;DR: In this paper, the authors describe the identification, modelling, and removal of previously unexplained systematic effects in the polarization data of the Planck High Frequency Instrument (HFI) on large angular scales.
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Planck intermediate results. XIX. An overview of the polarized thermal emission from Galactic dust

Peter A. R. Ade, +200 more
- 05 May 2014 - 
TL;DR: In this paper, a large-scale view of the Planck HFI at 353 GHz is presented, showing that the maximum observed dust polarization fraction is high in some of the intermediate dust column density (AV < 1mag) regions.
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Planck 2015 results: XIX. Constraints on primordial magnetic fields

Peter A. R. Ade, +282 more
- 01 Oct 2016 - 
TL;DR: The impact of primordial magnetic fields (PMFs) on the CMB temperature and polarization spectra was investigated in this paper, with different bounds depending on the specific effect that is analysed.
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Planck 2013 results. XVII. Gravitational lensing by large-scale structure

Peter A. R. Ade, +303 more
- 01 Nov 2014 - 
TL;DR: In this paper, the authors used the temperature-gradient correlations induced by lensing to reconstruct a (noisy) map of the CMB lensing potential, which provides an integrated measure of the mass distribution back to the last-scattering surface.
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Planck intermediate results: XXXV. Probing the role of the magnetic field in the formation of structure in molecular clouds

Peter A. R. Ade, +229 more
- 01 Feb 2016 - 
TL;DR: In this paper, the relative orientation between the magnetic field projected on the plane of sky, inferred from the polarized thermal emission of Galactic dust observed by Planck at 353 GHz, and the gas column density structures, quantified by the gradient of the column density, was evaluated pixel by pixel and analysed in bins of column density using the novel statistical tool called "histogram of relative orientations".