Séminaire IPAG

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Designing the high-contrast mode of HARMONI: towards exoplanet observations with the ELT

jeudi 5 janvier 2023 - 11h00

Alexis Carlotti et Laurent Jocou - IPAG
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HARMONI is the first-light, visible and near-IR integral field spectrograph for the ELT. It covers a large spectral range (450nm-2450nm) with 3500-18000 resolving powers. It benefits from a 70-80% Strehl ratio provided by its single-conjugate AO system. Its high-contrast imaging mode that is developed at IPAG enables exoplanets and disks observations using a series of pupil and image plane masks, and a dedicated nanometric-precision wavefront sensor. We will present in this talk the analysis and design process of the high-contrast subsystem - and the large team that it relies on - as well as performance estimates, and some science cases.

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Hôtes : Lucie Leboulleux

Salle Manuel Forestini, 414 rue de la piscine, 38400 Saint Martin d'Hères