Paper published in a book (Scientific congresses and symposiums)
GENIE: a ground-based precursor for the IRSI-Darwin mission
Absil, Olivier
2003In Aime, Claude; Soummer, Rémi (Eds.) Astronomy with High Contrast Imaging
 

Files


Full Text
25_absil.pdf
Author preprint (244.61 kB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Abstract :
[en] During the preliminary phase A of the Ground-based European Nulling Interferometer Experiment (GENIE), a number of interferometric configurations have been studied, in the cases of exozodiacal cloud and hot Jupiter detection. Their expected performances have been computed in light of the measured or expected performances of the VLTI sub-systems. A simple Bracewell nulling interferometer, formed of two Unit Telescopes and working in the L' or N bands, has been identified as a good candidate configuration for exozodiacal cloud detection. External or internal chopping, fringe tracking and intensity matching will be critical issues for this configuration. In the case of hot Jupiter detection, a double Bracewell with internal modulation in the L' band seems well appropriate, and should allow to carry out low resolution spectroscopy on a few bright exoplanets. The basic assumptions and computations which have lead to these candidate configurations are described in this paper.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Absil, Olivier  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Language :
English
Title :
GENIE: a ground-based precursor for the IRSI-Darwin mission
Publication date :
2003
Event name :
Journées d'Imagerie à très Haute Dynamique et Détection d'Exoplanètes
Event organizer :
Aime C. & Soummer R.
Event place :
Nice, France
Event date :
du 13 au 16 mai 2002
Audience :
International
Main work title :
Astronomy with High Contrast Imaging
Editor :
Aime, Claude
Soummer, Rémi
Publisher :
EDP Sciences, Les Ulis, France
Collection name :
EAS Publications Series, vol. 8
Pages :
289-296
Available on ORBi :
since 21 February 2011

Statistics


Number of views
31 (0 by ULiège)
Number of downloads
46 (0 by ULiège)

Bibliography


Similar publications



Contact ORBi