Share Email Print

Proceedings Paper

Simultaneous observation of two stars using the PRIMA Star Separator
Author(s): J. Nijenhuis; H. Visser; H. de Man; B. Dekker; J. Mekking; F. Kamphues
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

ESO is building the Phase Referenced Imaging and Microarcsecond Astronomy (PRIMA) facility for the Very Large Telescope Interferometer (VLTI) in Chile. PRIMA will enable interferometric imaging of very faint objects and high precision astrometry with both Unit (UT) and Auxiliary (AT) telescopes. The PRIMA facility consists of four major sub systems: Star Separators, Differential Delay Lines, Metrology and Fringe Sensor Units. TNO has developed the PRIMA Star Separator (STS) subsystems for both the UT and AT telescopes. The STS separates the light of two astronomical objects and feeds it into the long stroke delay line. The STS compensates for field rotation, stabilizes the beam tip tilt and adjust the lateral and axial alignment of the pupil. Chopping and/or counter-chopping on the science object or the guide star has also been implemented.

Paper Details

Date Published: 28 July 2008
PDF: 13 pages
Proc. SPIE 7013, Optical and Infrared Interferometry, 70133F (28 July 2008); doi: 10.1117/12.789943
Show Author Affiliations
J. Nijenhuis, TNO Science & Industry (Netherlands)
H. Visser, TNO Science & Industry (Netherlands)
H. de Man, TNO Science & Industry (Netherlands)
B. Dekker, TNO Science & Industry (Netherlands)
J. Mekking, TNO Science & Industry (Netherlands)
F. Kamphues, TNO Science & Industry (Netherlands)

Published in SPIE Proceedings Vol. 7013:
Optical and Infrared Interferometry
Markus Schöller; William C. Danchi; Françoise Delplancke, Editor(s)

© SPIE. Terms of Use
Back to Top