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Proceedings Paper

MAD on sky results in star-oriented mode
Author(s): Enrico Marchetti; Roland Brast; Bernard Delabre; Rob Donaldson; Enrico Fedrigo; Christoph Frank; Norbert Hubin; Johann Kolb; Jean-Louis Lizon; Massimiliano Marchesi; Sylvain Oberti; Roland Reiss; Christian Soenke; Sebastien Tordo; Andrea Baruffolo; Paolo Bagnara; Antonio Amorim; Jorge Lima
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Paper Abstract

The Multi-Conjugate Adaptive Optics Demonstrator (MAD) built by ESO with the contribution of two external consortia is a powerful test bench for proving the feasibility of Multi-Conjugate (MCAO) and Ground Layer Adaptive Optics (GLAO) techniques both in the laboratory and on the sky. MAD is based on a two deformable mirrors correction system and on two multi-reference wavefront sensors (Star Oriented and Layer Oriented) capable to observe simultaneously some pre-selected configurations of Natural Guide Stars. MAD corrects up to 2 arcmin field of view in K band. After a long laboratory test phase, it has been installed at the VLT and it successfully performed on-sky demonstration runs on several astronomical targets for evaluating the correction performance under different atmospheric turbulence conditions. In this paper we present the results obtained on the sky in Star Oriented mode for MCAO and GLAO configurations and we correlate them with different atmospheric turbulence parameters. Finally we compare some of the on-sky results with numerical simulations including real turbulence profile measured at the moment of the observations.

Paper Details

Date Published: 7 July 2008
PDF: 12 pages
Proc. SPIE 7015, Adaptive Optics Systems, 70150F (7 July 2008); doi: 10.1117/12.787240
Show Author Affiliations
Enrico Marchetti, European Southern Observatory (Germany)
Roland Brast, European Southern Observatory (Germany)
Bernard Delabre, European Southern Observatory (Germany)
Rob Donaldson, European Southern Observatory (Germany)
Enrico Fedrigo, European Southern Observatory (Germany)
Christoph Frank, European Southern Observatory (Germany)
Norbert Hubin, European Southern Observatory (Germany)
Johann Kolb, European Southern Observatory (Germany)
Jean-Louis Lizon, European Southern Observatory (Germany)
Massimiliano Marchesi, European Southern Observatory (Germany)
Sylvain Oberti, European Southern Observatory (Germany)
Roland Reiss, European Southern Observatory (Germany)
Christian Soenke, European Southern Observatory (Germany)
Sebastien Tordo, European Southern Observatory (Germany)
Andrea Baruffolo, Osservatorio Astronomico di Padova (Italy)
Paolo Bagnara, Osservatorio Astronomico di Padova (Italy)
Antonio Amorim, Univ. de Lisboa (Portugal)
Jorge Lima, Univ. de Lisboa (Portugal)

Published in SPIE Proceedings Vol. 7015:
Adaptive Optics Systems
Norbert Hubin; Claire E. Max; Peter L. Wizinowich, Editor(s)

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