28 July 2008 Fringe tracking at VLTI: status report
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Abstract
FINITO (the VLTI three beam fringe-tracker) has been offered in September 2007 to the astronomical community for observations with the scientific instruments AMBER and MIDI. In this paper, we describe the last improvements of the fringe-tracking loop and its actual performance when operating with the 1.8m Auxiliary Telescopes. We demonstrate the gain provided to the scientific observations. Finally, we discuss how FINITO real-time data could be used in post-processing to enhance the scientific return of the facility.
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Jean-Baptiste Le Bouquin, Jean-Baptiste Le Bouquin, Roberto Abuter, Roberto Abuter, Bertrand Bauvir, Bertrand Bauvir, Henri Bonnet, Henri Bonnet, Pierre Haguenauer, Pierre Haguenauer, Nicola di Lieto, Nicola di Lieto, Serge Menardi, Serge Menardi, Sébastien Morel, Sébastien Morel, Fredrik Rantakyrö, Fredrik Rantakyrö, Markus Schoeller, Markus Schoeller, Anders Wallander, Anders Wallander, Stefan Wehner, Stefan Wehner, } "Fringe tracking at VLTI: status report", Proc. SPIE 7013, Optical and Infrared Interferometry, 701318 (28 July 2008); doi: 10.1117/12.788414; https://doi.org/10.1117/12.788414
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