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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents

ID: 710665.0, MPI für Astronomie / Publikationen_mpia
Performance tests on the SPHERE-IFS
Authors:Mesa, D.; Gratton, R.; Claudi, R. U.; Desidera, S.; Giro, E.; Zurlo, A.; Costille, A.; Vigan, A.; Moutou, C.; Beuzit, J.-L.; Dohlen, K.; Feldt, M.; Mouillet, D.; Sauvage, J.-F.; Kasper, M.; Antichi, J.; Matthews, B. C.; Graham, J. R.
Place of Publication:Cambridge
Publisher:Cambridge Univ. Press
Date of Publication (YYYY-MM-DD):2014
Audience:Not Specified
Abstract / Description:Until now, just a few extrasolar planets (30 out of 860) have been found through the direct imaging method. This number should greatly improve when the next generation of High Contrast Instruments like Gemini Planet Imager (GPI) at Gemini South Telescope or SPHERE at VLT will became operative at the end of this year. In particular, the Integral Field Spectrograph (IFS), one of the SPHERE subsystems, should allow a first characterization of the spectral type of the found extrasolar planets. Here we present the results of the last performance tests that we have done on the IFS instrument at the Institut de Planetologie et d'Astrophysique de Grenoble (IPAG) in condition as similar as possible to the ones that we will find at the telescope. We have found that we should be able to reach contrast down to 5 × 10-7 and make astrometry at sub-mas level with the instrument in the actual conditions. A number of critical issues have been identified. The resolution of these problems could allow to further improve the performance of the instrument.
Free Keywords:instrumentation; Direct imaging
External Publication Status:published
Document Type:Other
Communicated by:N. N.
Affiliations:MPI für Astronomie
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