High contrast imaging with ELT/METIS: The wind driven halo, from SPHERE to METIS

Cantalloube, Faustine; Absil, Olivier; Bertram, Thomas; Brandner, Wolfgang; Delacroix, Christian; Feldt, Markus; Kenworthy, Matthew; Kulas, Martin; Milli, Julien; Neureuther, Philip; Orban De Xivry, Gilles; Pathak, Prashant; Por, Emiel; Scheithauer, Silvia; Steuer, Horst; van Boekel, Roy

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High contrast imaging with ELT/METIS: The wind driven halo, from SPHERE to METIS

Cantalloube, Faustine; Absil, Olivier; Bertram, Thomas et al.

2019 • In AO4ELT6 Conference proceedings

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Keywords :

ELT/METIS; Adaptive Optics; High-contrast imaging; Coronagraphy; Post-processing

Abstract :

[en] 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.

Disciplines :

Space science, astronomy & astrophysics

Author, co-author :

Cantalloube, Faustine

Absil, Olivier ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > PSILab

Bertram, Thomas

Brandner, Wolfgang

Delacroix, Christian ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > PSILab

Feldt, Markus

Kenworthy, Matthew

Kulas, Martin

Milli, Julien

Neureuther, Philip

More authors (6 more)

Language :

English

Title :

High contrast imaging with ELT/METIS: The wind driven halo, from SPHERE to METIS

Publication date :

2019

Event name :

AO4ELT6 Conference

Event date :

10-06-2019 to 14-06-2019

Audience :

International

Main work title :

AO4ELT6 Conference proceedings

Additional URL :

https://ui.adsabs.harvard.edu/abs/2019arXiv191111241C/abstract

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since 02 January 2020

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