Title
Simultaneous observation of two stars using the PRIMA Star Separator
Author
TNO Industrie en Techniek
Nijenhuis, J.
Visser, H.
de Man, H.
Dekker, B.
Mekking, J.
Kamphues, F.G.
Publication year
2008
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.
Subject
Aperture synthesis
Astrometry
ESO
European southern observatory
Interferometry
PRIMA
Scan mechanism
Star separator
STS
Very large telescope interferometer
VLTI
Astronomical satellites
Astrophysics
Electric delay lines
Geodetic satellites
Imaging techniques
Optical instruments
Optical telescopes
Waves
Astronomical objects
Axial alignment
Differential delay lines
Guide star
High-precision
Infra Red interferometry
Interferometric imaging
Phase referenced imaging
Sensor units
Simultaneous observation
Sub systems
Tip-tilt
Telescopes
To reference this document use:
http://resolver.tudelft.nl/uuid:805e5920-58ed-49bc-99fc-4a7dec05a9d6
TNO identifier
241033
ISBN
9780819472236
ISSN
0277-786X
Source
Optical and Infrared Interferometry, 23-27 June 2008, Marseille, France, 7013 (7013)
Series
Proceedings of SPIE - The International Society for Optical Engineering
Document type
conference paper