Performance characterization and near-real-time monitoring of MUSE adaptive optics modes at Paranal

T. Wevers; F. Selman; A. Reyes; M. Vega; J. Hartke; F. Bian; O. Beltramo-Martin; R. J. L. Fétick; S. Kamann; J. Kolb; T. Kravtsov; C. Moya; B. Neichel; S. Oberti; C. Reyes; E. Valenti

doi:10.1117/12.2630835

25 August 2022 Performance characterization and near-real-time monitoring of MUSE adaptive optics modes at Paranal

T. Wevers, F. Selman, A. Reyes, M. Vega, J. Hartke, F. Bian, O. Beltramo-Martin, R. J. L. Fétick, S. Kamann, J. Kolb, T. Kravtsov, C. Moya, B. Neichel, S. Oberti, C. Reyes, E. Valenti

Author Affiliations +

Proceedings Volume 12186, Observatory Operations: Strategies, Processes, and Systems IX; 121860T (2022) https://doi.org/10.1117/12.2630835
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

The Multi Unit Spectroscopic Explorer (MUSE) is an integral field spectrograph on the Very Large Telescope Unit Telescope 4, capable of laser guide star assisted and tomographic adaptive optics using the GALACSI module. Its observing capabilities include a wide field (1 square arcmin), ground layer AO mode (WFM-AO) and a narrow field (7.5”×7.5”), laser tomography AO mode (NFM-AO). The latter has had several upgrades in the 4 years since commissioning, including an optimization of the control matrices for the AO system and a new sub-electron noise detector for its infra-red low order wavefront sensor. We set out to quantify the NFM-AO system performance by analysing ∼230 spectrophotometric standard star observations taken over the last 3 years. To this end we expand upon previous work, designed to facilitate analysis of the WFM-AO system performance. We briefly describe the framework that will provide a user friendly, semi-automated way for system performance monitoring during science operations. We provide the results of our performance analysis, chiefly through the measured Strehl ratio and full width at half maximum (FWHM) of the core of the point spread function (PSF) using two PSF models, and correlations with atmospheric conditions. These results will feed into a range of applications, including providing a more accurate prediction of the system performance as implemented in the exposure time calculator, and the associated optimization of the scientific output for a given set of limiting atmospheric conditions.

Conference Presentation

Citation Download Citation

T. Wevers, F. Selman, A. Reyes, M. Vega, J. Hartke, F. Bian, O. Beltramo-Martin, R. J. L. Fétick, S. Kamann, J. Kolb, T. Kravtsov, C. Moya, B. Neichel, S. Oberti, C. Reyes, and E. Valenti "Performance characterization and near-real-time monitoring of MUSE adaptive optics modes at Paranal", Proc. SPIE 12186, Observatory Operations: Strategies, Processes, and Systems IX, 121860T (25 August 2022); https://doi.org/10.1117/12.2630835

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available