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High contrast imaging with ELT/METIS: The wind driven halo, from SPHERE to METIS
| Content Provider | Semantic Scholar |
|---|---|
| Author | Cantalloube, Faustine Absil, Oliver Bertram, Thomas Brandner, Wolfgang Delacroix, Christian Feldt, Markus Kenworthy, Matthew A. Kulas, Martin Milli, Julien Neureuther, Philip Xivry, Gilles Orban De Pathak, Prashant Por, Emiel H. Scheithauer, Silvia Steuer, Horst Boekel, Roy Van |
| Copyright Year | 2019 |
| Abstract | METIS is one of the three first-light instruments planned for the ELT, mainly dedicated to high contrast imaging in the mid-infrared. On the SPHERE high-contrast instrument currently installed at the VLT, we observe that one of the main contrast limitations is the wind driven halo, due to the limited AO running speed with respect to the atmospheric turbulence temporal evolution. From this observation, we extrapolate this signature to the ELT/METIS instrument, which is equipped with a single conjugated adaptive optics system and with several coronagraphic devices. By making use of an analytic AO simulator, we compare the amount of wind driven halo observed with SPHERE and with METIS, under the same turbulence conditions. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://hal.archives-ouvertes.fr/hal-02374893/document |
| Alternate Webpage(s) | http://ao4elt6.copl.ulaval.ca/proceedings/401-XjbA-251.pdf |
| Alternate Webpage(s) | https://arxiv.org/pdf/1911.11241v1.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
