Reference : The PEGASE project: characterisation of "Pegasi planets" and Brown Dwarfs
Scientific congresses and symposiums : Paper published in a book
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
The PEGASE project: characterisation of "Pegasi planets" and Brown Dwarfs
Baudoz, P. [> > > >]
Rouan, D. [> > > >]
Schneider, J. [> > > >]
Leger, A. [> > > >]
Ollivier, M. [> > > >]
Absil, Olivier mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS) >]
Leyre, A. [> > > >]
Mourard, D. [> > > >]
Nary Man, C. [> > > >]
Rousset, G. [> > > >]
Cassaing, F. [> > > >]
Allard, F. [> > > >]
Malbet, F. [> > > >]
Udry, S. [> > > >]
Martin, E. [> > > >]
SF2A-2004: Semaine de l'Astrophysique Francaise
Combes, F.
Barret, D.
Contini, T.
Meynadier, F.
Pagani, L.
Conference Series
Semaine de l'Astrophysique Française - Journées de la SF2A 2004
June 14-18, 2004
[en] I will present the PEGASE project proposed within the framework of the CNES call for idea on flights in formation. This ambitious project, gathering a dozen laboratories, proposes an interferometry mission in infrared I(1.5 to 6 µm) with spectroscopic capabilities. The bases of the interferometer will reach up to 500m, giving to PEGASE a resolution higher than the milli-arcsecond. The interferometric recombination includes a very simple mode, measurement of the visibility by excursion of the optical path difference and a mode in black fringe or nulling. The very high angular resolution of the instrument and high dynamical range with the nulling mode will allow to consider exciting scientific objectives: the characterization of Pegasids or hot Jupiters, the study of the internal structure and the atmospheres of brown dwarfs and the analysis of the internal areas of proto-planetary disks. I will first of all describe the basic configuration of the mission and will show that its simplicity ensures the feasibility of the project. I will explain then the relevance of such an instrument for the characterization of Pegasids. I will detail finally the various possible technical options to be attached to the initial version, in order to increase the effectiveness of the mission and to extend its scientific objectives.

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