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| Paper: |
Software for Astrometry with PRIMA at the VLTI |
| Volume: |
487, Resolving The Future Of Astronomy With Long-Baseline Interferometry |
| Page: |
321 |
| Authors: |
Köhler, R.; Launhardt, R.; Quirrenbach, A.; Henning, T.; Queloz, D. |
| Abstract: |
PRIMA (Phase-Referenced Imaging and Microarcsecond Astrometry) is an
ESO/VLTI instrument designed for phase-referenced imaging and
narrow-angle astrometry, dedicated to exoplanet detection. Astrometric
detection of planets requires a precision of 10–30 μarcsec.
For an interferometer with a baseline of 100 m, this corresponds to
measuring the (differential) optical path difference with a precision
of 5–15 nanometers. This precision can only be achieved with
careful calibration of the instrument, including effects that are
irrelevant for almost any other scientific application.
Here we describe the data reduction software that will apply all these
calibrations and corrections. |
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