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[en] With the advent of 30- to 40-m class ground-based telescopes in the mid-2020s, direct imaging of exoplanets is bound to take a new major leap. Among the approved projects, the Mid-infrared Extremely Large Telescope (ELT) Imager and Spectrograph (METIS) instrument for the ELT holds a prominent spot; by observing in the mid-infrared regime, it will be perfectly suited to study a variety of exoplanets and protoplanetary disks around nearby stars. Equipped with two of the most advanced coronagraphs, the vortex coronagraph and the apodizing phase plate, METIS will provide high-contrast imaging (HCI) in L-, M- and N-bands, and a combination of high-resolution spectroscopy and HCI in L- and M-bands. We present the expected HCI performance of the METIS instrument, considering realistic adaptive optics residuals, and investigate the effect of the main instrumental errors. The most important sources of degradation are identified and realistic sensitivity limits in terms of planet/star contrast are derived.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Carlomagno, Brunella ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > PSILab
Delacroix, Christian ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > PSILab
Absil, Olivier ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > PSILab
Cantalloube, Faustine; Max-Planck-Institut für Astronomie, Heidelberg, Germany
Orban De Xivry, Gilles ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > PSILab
Pathak, Prashant; European Southern Observatory, Garching, Germany
Agocs, Tibor; ASTRON, NOVA Optical Infrared Instrumentation Group, Dwingeloo, The Netherlands
Bertram, Thomas; Max-Planck-Institut für Astronomie, Heidelberg, Germany
Brandl, Bernhard; Leiden University, Leiden Observatory, RA Leiden, The Netherlands
Burtscher, Leonard; Leiden University, Leiden Observatory, RA Leiden, The Netherlands
Feldt, Markus; Max-Planck-Institut für Astronomie, Heidelberg, Germany
Glauser, Adrian; ETH Zürich, Institute for Particle Physics and Astrophysics, Zürich, Switzerland
Hippler, Stefan; Max-Planck-Institut für Astronomie, Heidelberg, Germany
Kenworthy, Matthew; Leiden University, Leiden Observatory, RA Leiden, The Netherlands
Stuik, Remko; Leiden University, Leiden Observatory, RA Leiden, The Netherlands
van Boekel, Roy; Max-Planck-Institut für Astronomie, Heidelberg, Germany)
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