PIONIER: a visitor instrument for the VLTI

Details PIONIER: a visitor instrument for the VLTI PIONIER: a visitor instrument for the VLTI

2010-08-31

arxiv.org/abs/1008.5352v1

Astronomy and Astrophysics

Astrophysics

Instrumentation and Methods for Astrophysics

Proceedings of SPIE conference Optical and Infrared Interferometry II (Conference 7734) San Diego 2010

Scientific paper

PIONIER is a 4-telescope visitor instrument for the VLTI, planned to see its first fringes in 2010. It combines four ATs or four UTs using a pairwise ABCD integrated optics combiner that can also be used in scanning mode. It provides low spectral resolution in H and K band. PIONIER is designed for imaging with a specific emphasis on fast fringe recording to allow closure-phases and visibilities to be precisely measured. In this work we provide the detailed description of the instrument and present its updated status.

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