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Performances tests on the SPHERE-IFS | | Dino Mesa
; Raffaele Gratton
; Riccardo U. Claudi
; Silvano Desidera
; Enrico Giro
; Alice Zurlo
; Anne Costille
; Arthur Vigan
; Claire Moutou
; Jean-Luc Beuzit
; Kjetil Dohlen
; Markus Feldt
; David Mouillet
; Jean-Francois Sauvage
; Markus Kasper
; | | Date: |
16 Jul 2013 | | Abstract: | 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 5x10$^{-7}$ 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. | | Source: | arXiv, 1307.4240 | | Services: | Forum | Review | PDF | Favorites | |
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