The data-reduction software for micro-arcsecond astrometry with PRIMA at the VLTI

Rainer Koehler; Ingo Stilz; Andreas Quirrenbach; Adrian Kaminski; Tim Schulze-Hartung; Ralf Launhardt; Nicholas M. Elias II; Thomas Henning; Didier Queloz

doi:10.1117/12.857276

21 July 2010 The data-reduction software for micro-arcsecond astrometry with PRIMA at the VLTI

Rainer Koehler, Ingo Stilz, Andreas Quirrenbach, Adrian Kaminski, Tim Schulze-Hartung, Ralf Launhardt, Nicholas M. Elias II, Thomas Henning, Didier Queloz

Author Affiliations +

Proceedings Volume 7734, Optical and Infrared Interferometry II; 77344B (2010) https://doi.org/10.1117/12.857276
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

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. The astrometric datareduction software (ADRS) is a key component of the system, calculating very precise (~ 10 μas) differential angular separations projected on the sky. For an interferometer with a baseline of 100 m, this separation 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. PRIMA is currently being commissioned on Paranal, and we expect to obtain the first astrometric data in September 2010. These data will provide a new insight into the operation and calibration of the instrument.

Citation Download Citation

Rainer Koehler, Ingo Stilz, Andreas Quirrenbach, Adrian Kaminski, Tim Schulze-Hartung, Ralf Launhardt, Nicholas M. Elias II, Thomas Henning, and Didier Queloz "The data-reduction software for micro-arcsecond astrometry with PRIMA at the VLTI", Proc. SPIE 7734, Optical and Infrared Interferometry II, 77344B (21 July 2010); https://doi.org/10.1117/12.857276

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available