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Proceedings Paper

PRIMA FSU: a fringe sensor unit for the VLTI
Author(s): Sergio Mottini; Stefano Cesare; Gianalfredo Nicolini
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Paper Abstract

The capability to perform Phased-Reference Imaging and Narrow-Angle Astrometry with the VLTI will be given by the PRIMA instrument, which is based on the simultaneous observation of two celestial objects separated by 2 to 60 arcsec. PRIMA facility will allow VLTI instruments like MIDI and AMBER to observe objects with magnitude fainter than in single field mode. PRIMA astrometric camera will allow to measure relative angular positions of stars with 10 uas accuracy. This paper reviews the concept and the implementation of the Fringe Sensor Unit, the PRIMA fringe sensor/astrometric instrument, which is currently under integration/test at Alenia Spazio.

Paper Details

Date Published: 14 October 2005
PDF: 12 pages
Proc. SPIE 5962, Optical Design and Engineering II, 596222 (14 October 2005); doi: 10.1117/12.624753
Show Author Affiliations
Sergio Mottini, Alcatel Alenia Space Italia (Italy)
Stefano Cesare, Alcatel Alenia Space Italia (Italy)
Gianalfredo Nicolini, Alcatel Alenia Space Italia (Italy)

Published in SPIE Proceedings Vol. 5962:
Optical Design and Engineering II
Laurent Mazuray; Rolf Wartmann, Editor(s)

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