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The ESO radial velocity program. Status and results

Published online by Cambridge University Press:  26 May 2016

Martin Kürster ,
Michael Endl ,
Sebastian Els ,
Artie P. Hatzes ,
Willam D. Cochran ,
Frédéric Rouesnel ,
Konrad Dennerl  and
Stefan Döbereiner
Martin Kürster
Affiliation:
European Southern Observatory, Casilla 19001, Santiago, Chile
Michael Endl
Affiliation:
nstitut für Astronomie, Universität Wien, Türkenschanzstr. 17, A-1180 Wien, Austria
Sebastian Els
Affiliation:
Institut für Theoretische Astrophysik, Universität Heidelberg, Tiergartenstr. 15, D-69121 Heidelberg, Germany
Artie P. Hatzes
Affiliation:
Thüringer Landessternwarte Tautenburg, Sternwarte 5, D-07778 Tautenburg, Germany
Willam D. Cochran
Affiliation:
McDonald Observatory, The University of Texas at Austin, Austin, TX 78718-1083, USA
Frédéric Rouesnel
Affiliation:
Université de Paris-Sud, Bâtiment 470, F-91405 Orsay Cedex, France
Konrad Dennerl
Affiliation:
Max-Planck-Institut für extraterrestrische Physik, Giessenbachstr., D-85740 Garching, Germany
Stefan Döbereiner
Affiliation:
Max-Planck-Institut für extraterrestrische Physik, Giessenbachstr., D-85740 Garching, Germany

Abstract

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We present results from our precision radial velocity (RV) program at ESO La Silla. The achievable RV precision after the upgrade of the CES spectrograph is demonstrated. We apply the method of pooled variance diagrams to compare our short-term with our long-term precision. For the active planet-hosting star ι Hor we determine the influence of stellar activity and the rotation period, and address the question of a second long-period planet. For the RV signal in ∊ Eri we demonstrate the distinctness of the time scales present in the RV and Call data, providing further support for the planetary interpretation in this active star.

Type
Part I: Discovery and study of extrasolar planets - current
Information
Symposium - International Astronomical Union , Volume 202: Planetary Systems in the Universe – Observation, Formation and Evolution , 2004 , pp. 36 - 43
Copyright
Copyright © Astronomical Society of the Pacific 2004 

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