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Are there Jupiters in the α Centauri system?

Published online by Cambridge University Press:  26 May 2016

Michael Endl ,
Martin Kürster ,
Sebastian Els ,
Artie P. Hatzes ,
William D. Cochran ,
Konrad Dennerl  and
Stefan Döbereiner
Michael Endl
Affiliation:
1. European Southern Observatory, Casilla 19001, Santiago, Chile 2. Institut für Astronomie, Universität Wien, Türkenschanzstr. 17, A-1180 Wien, Austria
Martin Kürster
Affiliation:
European Southern Observatory, Casilla 19001, Santiago, Chile
Sebastian Els
Affiliation:
1. European Southern Observatory, Casilla 19001, Santiago, Chile 2. 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
William D. Cochran
Affiliation:
McDonald Observatory, The University of Texas at Austin, Austin, TX 78712-1083, USA
Konrad Dennerl
Affiliation:
Max-Planck-Institut für extraterretrische Physik, Giessenbachstr., D-85748 Garching, Germany
Stefan Döbereiner
Affiliation:
Max-Planck-Institut für extraterretrische Physik, Giessenbachstr., D-85748 Garching, Germany

Abstract

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We present the results of five years of high precision radial velocity (RV) monitoring of the α Centauri system. Observations were performed with the ESO 1.4m CAT telescope and the Coudé Echelle Spectrometer (CES) on La Silla. From the achieved RV precision we establish the detection threshold for Jovian planets in orbit around α Centauri A & B. Together with the known dynamical limits for stable planetary orbits we can set strong constraints on the presence of giant planets in our neighbouring binary system.

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. 78 - 80
Copyright
Copyright © Astronomical Society of the Pacific 2004 

References

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