P. Riaud
Janssen Pharmaceutica
21 Papers
86 Citations
P. Riaud is an academic researcher from Janssen Pharmaceutica. The author has contributed to research in topics: Exoplanet & Planet. The author has an hindex of 7, co-authored 21 publications. Previous affiliations of P. Riaud include Haute-Provence Observatory & University of Liège.
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Papers
Improving Earth-like planets' detection with an ELT: the differential radial velocity experiment
P. Riaud,P. Riaud,Jean Schneider +2 more
TL;DR: In this paper, the authors proposed to combine high-precision radial velocity with an ELT to detect Earth-like extrasolar planets with a feasible coronagraph, which overcomes the main coronagraphic limitation due to the pinned and low variable speckles and opens a way to detect directly exoplanets with large ground-based telescopes equipped with an efficient XAO system.
The Four Quadrant Phase Mask Coronagraph and its avatars
TL;DR: The four quadrant phase mask (4QPMC) as mentioned in this paper is a well-known Lyot coronagraph that divides the full field of view at the focal plane in four quadrants.
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Improving interferometric null depth measurements using statistical distributions: theory and rst results with the Palomar Fiber Nuller
C. Hanot,B. Mennesson,Sara F. Martin,K. Liewer,F. Loya,D. Mawet,P. Riaud,O. Absil,E. Serabyn +8 more
- 01 Jan 2009
TL;DR: In this article, a self-calibrated statistical analysis method was developed for the reduction of nulling interferometry data, which uses the statistical distributions of the uctuating null depth and beam intensities to retrieve the astrophysical null depth in the presence of fast atmospheric uctuations.
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Coronagraphic search for exo-planets with a hypertelescope: I. In the thermal IR
P. Riaud,A. Boccaletti,S. Gillet,Jean Schneider,Antoine Labeyrie,Luc Arnold,Jacques Baudrand,O. Lardière,Julien Dejonghe,V. Borkowski +9 more
TL;DR: In this article, the signal to noise ratio for different classes of stars (from F0V to M5V) and includes several sources of background noise (zodiacal and exozodiacal lights for instance).
The 4m International Liquid Mirror Telescope (ILMT)
Jean Surdej,Olivier Absil,Przemyslaw Bartczak,Ermanno F. Borra,J.-P. Chisogne,Jean-François Claeskens,B. Collin,M. De Becker,Denis Defrere,S. Denis,Carlo Flebus,O. Garcet,Pierre Gloesener,C. Jean,Patricia Lampens,C. Libbrecht,A. Magette,Jean Manfroid,Dimitri Mawet,Theodoros Nakos,Nathalie Ninane,J. Poels,A. Pospieszalska,P. Riaud,P. G. Sprimont,Jean-Pierre Swings +25 more
TL;DR: In this paper, the working principle of liquid mirror telescopes is first recalled, along with the advantages and disadvantages of the latter over classical telescopes, and a description of the telescope, its instrumentation and the handling of the data is also presented.