# NAOMI: the adaptive optics system of the Auxiliary Telescopes of the VLTI **Authors:** Woillez J., Abad J.A., Abuter R., Aller Carpentier E., Alonso J.,, Andolfato L., Barriga P., Berger J.-P., Beuzit J.-L., Bonnet H., Bourdarot, G., Bourget P., Brast R., Caniguante L., Cottalorda E., Darr\'e P., Delabre, B., Delboulb\'e A., Delplancke-Str\"obele F., Dembet R., Donaldson R., Dorn, R., Dupeyron J., Dupuy C., Egner S., Eisenhauer F., Fischer G., Frank C.,, Fuenteseca E., Gitton P., Gont\'e F., Guerlet T., Guieu S., Gutierrez P.,, Haguenauer P., Haimerl A., Haubois X., Heritier C., Huber S., Hubin N.,, Jolley P., Jocou L., Kirchbauer J.-P., Kolb J., Kosmalski J., Krempl P., Le, Bouquin J.-B., Le Louarn M., Lilley P., Lopez B., Magnard Y., Mclay S.,, Meilland A., Meister A., Merand A., Moulin T., Pasquini L., Paufique J.,, Percheron I., Pettazzi L., Pfuhl O., Phan D., Pirani W., Quentin J., Rakich, A., Ridings R., Riedel M., Reyes J., Rochat S., Santos Tom\'as G., Schmid C.,, Schuhler N., Shchekaturov P., Seidel M., Soenke C., Stadler E., Stephan C.,, Su\'arez M., Todorovic M., Valdes G., Verinaud C., Zins G.,, Z\'u\~niga-Fern\'andez S arXiv: 1908.06651 · 2019-08-20 ## TL;DR NAOMI is an adaptive optics system designed for the VLTI Auxiliary Telescopes to enhance wavefront correction, enabling more robust fringe tracking and improved observational performance under various atmospheric conditions. ## Contribution This paper introduces the design and implementation of NAOMI, a new adaptive optics module for VLTI Auxiliary Telescopes, improving fringe tracking robustness. ## Key findings - NAOMI improves wavefront correction capabilities. - Enhanced fringe tracking under degraded atmospheric conditions. - Better coupling efficiency into single-mode fibres. ## Abstract The tip-tilt stabilisation system of the 1.8 m Auxiliary Telescopes of the Very Large Telescope Interferometer was never dimensioned for robust fringe tracking, except when atmospheric seeing conditions are excellent. Increasing the level of wavefront correction at the telescopes is expected to improve the coupling into the single-mode fibres of the instruments, and enable robust fringe tracking even in degraded conditions. We deployed a new adaptive optics module for interferometry (NAOMI) on the Auxiliary Telescopes. We present its design, performance, and effect on the observations that are carried out with the interferometric instruments. ## Full text _Full body text omitted from this summary view._ Fetch the complete paper as Markdown: https://tomesphere.com/paper/1908.06651/full.md ## Figures 20 figures with captions in the complete paper: https://tomesphere.com/paper/1908.06651/full.md ## References 34 references — full list in the complete paper: https://tomesphere.com/paper/1908.06651/full.md --- Source: https://tomesphere.com/paper/1908.06651