Commissioning Results From The VLTI PRIMA Facility

Details Commissioning Results From The VLTI PRIMA Facility Commissioning Results From The VLTI PRIMA Facility

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21730206v&link_type=abstract

American Astronomical Society, AAS Meeting #217, #302.06; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

Commissioning work on the Phase Referenced Imaging and Microarcsecond Astrometry (PRIMA) Facility for ESO's Very Large Telescope Interferometer (VLTI) has been ongoing at Paranal Observatory. Intensive commissioning activity at the subsystem level has been taking place, testing the dual fringe sensor units, telescope star separators, internal system metrology, and differential delay lines. Results at the system level from the first commissioning runs will be presented, including dual simultaneous fringe tracking of PRIMA's twin fringe sensor units. Near-term prospects for PRIMA to achieve astrometric operations will also be presented, producing narrow-angle astrometry at the level of tens of microarseconds.

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