@inproceedings{0df74cd0e2d6432589db490b25ce3ffa,
title = "The MAVIS image simulator: Predicting the astrometric performance of MAVIS",
abstract = "We present initial results from the Multi-conjugate Adaptive-optics Visible Imager-Spectrograph Image Simulator (MAVISIM) to explore the astrometric capabilities of the next generation instrument MAVIS. A core scientific and operational requirement of MAVIS will be to achieve highly accurate differential astrometry, with accuracies on the order that of the extremely large telescopes. To better understand the impact of known and anticipated astrometric error terms, we have created an initial astrometric budget which we present here to motivate the creation of MAVISIM. In this first version of MAVISIM we include three major astrometric error sources; point spread function (PSF) field variability due to high order aberrations, PSF degradation and field variability due to tip-tilt residual error, and field distortions due to non-common path aberrations in the AO module. An overview of MAVISIM is provided along with initial results from a study using MAVISIM to simulate an image of a Milky Way-like globular cluster. Astrometric accuracies are extracted using PSF-fitting photometry with encouraging results that suggest MAVIS will deliver accuracies of 150µas down to faint magnitudes.",
keywords = "Adaptive optics, Astrometry, Multi-conjugate adaptive optics",
author = "Stephanie Monty and Fran{\c c}ois Rigaut and Richard McDermid and Jesse Cranney and Guido Agapito and Cedric Plantet and Davide Greggio and Mendel, {J. Trevor} and Mojtaba Taheri and Daniele Vassallo and Christian Schwab and Giuliana Fiorentino and Giuseppe Bono and Dionne Haynes",
note = "Publisher Copyright: {\textcopyright} 2020 SPIE; Ground-Based and Airborne Instrumentation for Astronomy VIII 2020 ; Conference date: 14-12-2020 Through 22-12-2020",
year = "2020",
doi = "10.1117/12.2561433",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Evans, {Christopher J.} and Bryant, {Julia J.} and Kentaro Motohara",
booktitle = "Ground-Based and Airborne Instrumentation for Astronomy VIII",
address = "United States",
}