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ESPRI data-reduction strategy and error budget for PRIMA

Published online by Cambridge University Press:  01 October 2007

R. Tubbs ,
N. M. Elias II ,
R. Launhardt ,
S. Reffert ,
F. Delplancke ,
A. Quirrenbach ,
T. Henning  and
D. Queloz
R. Tubbs
Affiliation:
Max Planck Institute for Astronomy (MPIA), Königstuhl 17, D-69117 Heidelberg, Germany email: [email protected]
N. M. Elias II
Affiliation:
Max Planck Institute for Astronomy (MPIA), Königstuhl 17, D-69117 Heidelberg, Germany email: [email protected] Landessternwarte (LSW), Heidelberg University Centre for Astronomy (ZAH), Königstuhl 12, D-69117 Heidelberg, Germany
R. Launhardt
Affiliation:
Max Planck Institute for Astronomy (MPIA), Königstuhl 17, D-69117 Heidelberg, Germany email: [email protected]
S. Reffert
Affiliation:
Landessternwarte (LSW), Heidelberg University Centre for Astronomy (ZAH), Königstuhl 12, D-69117 Heidelberg, Germany
F. Delplancke
Affiliation:
European Southern Observatory (ESO), Karl-Schwarzschild-Straße 2, D-85748 Garching bei München, Germany
A. Quirrenbach
Affiliation:
Landessternwarte (LSW), Heidelberg University Centre for Astronomy (ZAH), Königstuhl 12, D-69117 Heidelberg, Germany
T. Henning
Affiliation:
Max Planck Institute for Astronomy (MPIA), Königstuhl 17, D-69117 Heidelberg, Germany email: [email protected]
D. Queloz
Affiliation:
Observatoire Astronomique de l'Université de Genève1290 Sauverny, Switzerland
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Abstract

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The Exoplanet Search with PRIma (ESPRI) will use the PRIMA dual-feed astrometric capability on the Very Large Telescope Interferometer (VLTI) to perform astrometric detections of extra-solar planets. We present an overview of our data-reduction strategy for achieving 10-μarcsecond accuracy narrow-angle astrometry using the PRIMA instrument. We discuss the error budget for astrometric measurements, and those aspects of our strategy which are designed to minimise the astrometric measurement errors.

Keywords

astrometryplanetary systemsinstrumentation: interferometerstechniques: interferometricmethods: data analysistechniques: high angular resolutioninfrared: stars
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S248: A Giant Step: from Milli- to Micro-arcsecond Astrometry , October 2007 , pp. 132 - 133
Copyright
Copyright © International Astronomical Union 2008

References

Elias, N. M. II, Tubbs, R., Köhler, R., Reffert, S., Stilz, I., Launhardt, R., de Jong, J., Quirrenbach, A., Delplancke, F., Henning, T., Queloz, D. & ESPRI Consortium 2008. Astrometric Data Reduction Software and error budget for PRIMA. In: Proc. IAUS 249 (in press).CrossRefGoogle Scholar
Launhardt, R., Henning, Th., Queloz, D. et al. , 2008, this volume p. 417.CrossRefGoogle Scholar