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Proceedings Paper

New horizons for VLTI 10 micron interferometry: first scientific measurements with external PRIMA fringe tracking
Author(s): J.-U. Pott; A. Müller; I. Karovicova; F. Delplancke
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Paper Abstract

We report recent success to stabilize the VLTI/MIDI-10um beam-combiner with K-band fringe tracking, provided by PRIMA (FSU). After encouraging commissioning results, presented during the last SPIE, we accomplished in November 2011 a successful run of science demonstration. A broad range of targets were observed, from planet-hosting stars over YSO disks to AGN. We will present first results, focussing on the improvements on sensitivity and precision with respect to classical MIDI stand-alone observations. MIDI broad-band dispersion and group-delay can be reliably predicted by the fringe tracker to enable coherent integration beyond coherence time at the lambda/10 precision level.

Paper Details

Date Published: 12 September 2012
PDF: 4 pages
Proc. SPIE 8445, Optical and Infrared Interferometry III, 84450Q (12 September 2012); doi: 10.1117/12.927027
Show Author Affiliations
J.-U. Pott, Max-Planck-Institut für Astronomie (Germany)
A. Müller, Max-Planck-Institut für Astronomie (Germany)
I. Karovicova, Max-Planck-Institut für Astronomie (Germany)
F. Delplancke, European Southern Observatory (Germany)

Published in SPIE Proceedings Vol. 8445:
Optical and Infrared Interferometry III
Françoise Delplancke; Jayadev K. Rajagopal; Fabien Malbet, Editor(s)

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