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Proceedings Paper

VLTI image alignment monitoring
Author(s): Philippe B. Gitton; Michael Cantzler; Bertrand Koehler; P. Kervella
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Paper Abstract

In its current configuration, the VLT Interferometer (VLTI) combines the light collected by two telescopes and directs it towards the commissioning instrument called VINCI. In an interferometer, the optical path ranging from a telescope to the point where beams are combined is referred as an arm of the interferometer. This arm contains a large number of optics that have to be aligned at installation time and kept aligned during the period of use of the interferometer. The method used to perform the initial alignment is reported in a separate article. This paper is focussed on the methods used to assess the stability of the image alignment of each interferometer arm. Collected data sets are presented and interpreted.

Paper Details

Date Published: 21 February 2003
PDF: 11 pages
Proc. SPIE 4838, Interferometry for Optical Astronomy II, (21 February 2003); doi: 10.1117/12.459741
Show Author Affiliations
Philippe B. Gitton, European Southern Observatory (Germany)
Michael Cantzler, European Southern Observatory (Germany)
Bertrand Koehler, European Southern Observatory (Germany)
P. Kervella, European Southern Observatory (Germany)

Published in SPIE Proceedings Vol. 4838:
Interferometry for Optical Astronomy II
Wesley A. Traub, Editor(s)

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