Issue |
A&A
Volume 629, September 2019
|
|
---|---|---|
Article Number | A41 | |
Number of page(s) | 10 | |
Section | Astronomical instrumentation | |
DOI | https://doi.org/10.1051/0004-6361/201935890 | |
Published online | 03 September 2019 |
NAOMI: the adaptive optics system of the Auxiliary Telescopes of the VLTI
1
European Southern Observatory Headquarters, Karl-Schwarzschild-Straße 2, 85748 Garching bei München, Germany
e-mail: jwoillez@eso.org
2
European Southern Observatory Vitacura, Alonso de Córdova 3107, Vitacura, Casilla 19001, Santiago, Chile
3
Université Grenoble Alpes, CNRS, IPAG, 38000 Grenoble, France
4
KRP Mechatec GmbH, Boltzmannstraße 2, 85748 Garching bei München, Germany
5
Pactum LTD, PO Box 71035, London, W4 9GZ, UK
6
Max Planck Institute for extraterrestrial Physics, Giessenbachstr., 85741 Garching, Germany
7
Lab. Lagrange, Univ. Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, France
8
Universidad de Valparaíso, Instituto de Física y Astronomía (IFA), Avenida Gran Bretaña 1111, Casilla 5030, Valparaíso, Chile
9
Núcleo Milenio de Formación Planetaria (NPF), Valparaíso, Chile
Received:
15
May
2019
Accepted:
2
July
2019
Context. 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.
Aims. 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.
Methods. We deployed a new adaptive optics module for interferometry (NAOMI) on the Auxiliary Telescopes.
Results. We present its design, performance, and effect on the observations that are carried out with the interferometric instruments.
Key words: instrumentation: interferometers / instrumentation: adaptive optics
© ESO 2019
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