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Featured researches published by M. Grenon.


Monthly Notices of the Royal Astronomical Society | 2006

The design and performance of the Gaia photometric system

C. Jordi; Erik Høg; Anthony G. A. Brown; Lennart Lindegren; Coryn A. L. Bailer-Jones; J. M. Carrasco; Jens Knude; V. Straižys; J. H. J. de Bruijne; Jean-François Claeskens; R. Drimmel; F. Figueras; M. Grenon; I. Kolka; M. A. C. Perryman; G. Tautvaišiene; V. Vansevicius; Philip Willemsen; A. Bridžius; D. W. Evans; C. Fabricius; M. Fiorucci; Ulrike Heiter; T. A. Kaempf; A. Kazlauskas; A. Kucinskas; V. Malyuto; Ulisse Munari; C. Reylé; J. Torra

The European Gaia astrometry mission is due for launch in 2011. Gaia will rely on the proven principles of the ESA Hipparcos mission to create an all-sky survey of about one billion stars throughout our Galaxy and beyond, by observing all objects down to 20 mag. Through its massive measurement of stellar distances, motions and multicolour photometry, it will provide fundamental data necessary for unravelling the structure, formation and evolution of the Galaxy. This paper presents the design and performance of the broad- and medium-band set of photometric filters adopted as the baseline for Gaia. The 19 selected passbands (extending from the UV to the far-red), the criteria and the methodology on which this choice has been based are discussed in detail. We analyse the photometric capabilities for characterizing the luminosity, temperature, gravity and chemical composition of stars. We also discuss the automatic determination of these physical parameters for the large number of observations involved, for objects located throughout the entire Hertzsprung-Russell diagram. Finally, the capability of the photometric system (PS) to deal with the main Gaia science case is outlined.


Astronomy and Astrophysics | 2009

The Hipparcos catalogue

Mac Perryman; Lennart Lindegren; J. Kovalevsky; Erik Høg; Ulrich Bastian; P. L. Bernacca; Michel Creze; F. Donati; M. Grenon; F. van Leeuwen; H. Van Der Marel; Francois Mignard; C. A. Murray; R. S. Le Poole; Hans Schrijver; C. Turon; F. Arenou; M. Froeschle; C. S. Petersen


Astronomy and Astrophysics | 1992

A tridimensional model of the galactic interstellar extinction

F. Arenou; M. Grenon; Alfredo Gomez


Astronomy and Astrophysics | 1992

In-orbit performance of the Hipparcos astrometry satellite

M. A. C. Perryman; E. Høg; J. Kovalevsky; Lennart Lindegren; C. Turon; P. L. Bernacca; Michel Creze; F. Donati; M. Grenon; M. Grewing; F. van Leeuwen; H. Van Der Marel; C. A. Murray; R. S. Le Poole; Hans Schrijver


Astronomy and Astrophysics | 1997

THE HIPPARCOS MISSION : PHOTOMETRIC DATA

F. van Leeuwen; D. W. Evans; M. Grenon; V. Grossmann; F. Mignard; M. A. C. Perryman


Bulletin d'information - Centre de données stellaires | 1992

The Hipparcos Input Catalogue

C. Turon; Michel Creze; D. Egret; A. E. Gomez; M. Grenon; Hartmut Jahreiss; Y. Requieme; A. N. Argue; A. Bec-Borsenberger; J. Dommanget; M. O. Mennessier; F. Arenou; M. Chareton; F. Crifo; J. C. Mermilliod; D. Morin; B. Nicolet; O. Nys; Laurent Prevot; M. Rousseau; M. A. C. Perryman


Astronomy and Astrophysics | 1996

HIPPARCOS DISTANCES AND MASS LIMITS FOR THE PLANETARY CANDIDATES : 47 URSAE MAJORIS, 70 VIRGINIS, AND 51 PEGASI

M. A. C. Perryman; Lennart Lindegren; F. Arenou; Ulrich Bastian; H.-H. Bernstein; F. van Leeuwen; Hans Schrijver; P. L. Bernacca; D. W. Evans; J. L. Falin; M. Froeschle; M. Grenon; R. Hering; E. Høg; J. Kovalevsky; F. Mignard; C. A. Murray; Margaret J. Penston; C. S. Petersen; R. S. Le Poole; S. Söderhjelm; C. Turon


Astronomy and Astrophysics | 1992

Tycho photometry calibration and first results

Dominic R. Scales; M. A. J. Snijders; G. K. Andreasen; M. Grenon; M. Grewing; E. Høg; F. van Leeuwen; Lennart Lindegren; H. Mauder


Astronomy and Astrophysics | 1998

EVIDENCE FOR A SIGNATURE OF THE GALACTIC BAR IN THE SOLAR NEIGHBOURHOOD

D. Raboud; M. Grenon; L. Martinet; R. Fux; S. Udry


Astronomy and Astrophysics | 1995

Properties of the HIPPARCOS Input Catalogue

Catherine Turon; Y. Requieme; M. Grenon; Alfredo Gomez; Dexter Morin; F. Crifo; F. Arenou; M. Froeschle; Francois Mignard; M. A. C. Perryman; A. N. Argue; Michel Creze; J. Dommanget; Daniel Egret; Hartmut Jahreiss; M. O. Mennessier; Anh Tuan Pham; D. W. Evans; Floor van Leeuwen; Lennart Lindegren

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C. Turon

Janssen Pharmaceutica

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D. W. Evans

University of Cambridge

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F. Crifo

Janssen Pharmaceutica

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Francois Mignard

Centre national de la recherche scientifique

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M. A. C. Perryman

European Space Research and Technology Centre

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D. Morin

Janssen Pharmaceutica

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C. A. Murray

East Sussex County Council

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