MAVIS: astrometric calibration technique

Jesse Cranney; Dionne Haynes; Israel Vaughn; Trevor Mendel; Stephanie Monty; Davide Greggio; David Brodrick; François Rigaut

doi:10.1117/12.2629678

29 August 2022 MAVIS: astrometric calibration technique

Jesse Cranney, Dionne Haynes, Israel Vaughn, Trevor Mendel, Stephanie Monty, Davide Greggio, David Brodrick, François Rigaut

Author Affiliations +

Proceedings Volume 12185, Adaptive Optics Systems VIII; 1218567 (2022) https://doi.org/10.1117/12.2629678
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Conference Poster

Abstract

The MCAO Assisted Visible Imager and Spectrograph (MAVIS) is currently in preliminary design for the ESO VLT in Chile, and is set to deliver diffraction limited science in V-band over a wide (30”x30”) field of view. In order for MAVIS to capitalise on its high angular resolution over a large science field, a sensitive astrometric calibration process will be employed. The stringent requirements on this calibration process require the development of an astrometric calibration technique which is insensitive to manufacturing errors in the calibration mask, while still able to detect a broad range of distortions present in the MAVIS optical path. We derive one such calibration method along with simulations in the MAVIS context, using the open-source MAVISIM tool with realistic errors present.

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Jesse Cranney, Dionne Haynes, Israel Vaughn, Trevor Mendel, Stephanie Monty, Davide Greggio, David Brodrick, and François Rigaut "MAVIS: astrometric calibration technique", Proc. SPIE 12185, Adaptive Optics Systems VIII, 1218567 (29 August 2022); https://doi.org/10.1117/12.2629678

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