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What we learn from TGAS about the moving groups of the Solar neighbourhood

Published online by Cambridge University Press:  07 March 2018

B. Goldman ,
E. Schilbach ,
S. Röser ,
P. Schöfer ,
A. Derekas ,
A. Moor ,
W. Brandner  and
T. Henning
B. Goldman
Affiliation:
Max Planck Institute for Astronomy, Königstuhl 17, D–69117 Heidelberg, Germany email: goldman@mpia.de, brandner@mpia.de, henning@mpia.de Observatoire astronomique de Strasbourg, Université de Strasbourg, CNRS, UMR 7550, 11 rue de l'Université, F-67000 Strasbourg, France
E. Schilbach
Affiliation:
Max Planck Institute for Astronomy, Königstuhl 17, D–69117 Heidelberg, Germany email: goldman@mpia.de, brandner@mpia.de, henning@mpia.de Astronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg, Möchhofstrasse 12–14, D–69120 Heidelberg, Germany email: roeser@ari.uni-heidelberg.de, schilbach@ari.uni-heidelberg.de
S. Röser
Affiliation:
Astronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg, Möchhofstrasse 12–14, D–69120 Heidelberg, Germany email: roeser@ari.uni-heidelberg.de, schilbach@ari.uni-heidelberg.de
P. Schöfer
Affiliation:
Institut für Astrophysik, Friedrich-Hund-Platz 1, 37077, Göttingen, Germany schoefer@astro.physik.uni-goettingen.de
A. Derekas
Affiliation:
Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, P.O. Box 67, H-1525 Budapest, Hungary moor@konkoly.hu, derekas@konkoly.hu
A. Moor
Affiliation:
Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, P.O. Box 67, H-1525 Budapest, Hungary moor@konkoly.hu, derekas@konkoly.hu
W. Brandner
Affiliation:
Max Planck Institute for Astronomy, Königstuhl 17, D–69117 Heidelberg, Germany email: goldman@mpia.de, brandner@mpia.de, henning@mpia.de
T. Henning
Affiliation:
Max Planck Institute for Astronomy, Königstuhl 17, D–69117 Heidelberg, Germany email: goldman@mpia.de, brandner@mpia.de, henning@mpia.de
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Abstract

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We use the TGAS proper motions and parallaxes as well as published and new radial velocities to study the dynamics of nearby moving groups. In particular we try to determine their age using backtracing of the individual members to a common origin. We find that the current data, probably the radial velocities, do not allow to reach a successful conclusion.

Keywords

Galaxy: kinematics and dynamicsopen clusters and associations: general
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S330: Astrometry and Astrophysics in the Gaia sky , April 2017 , pp. 214 - 215
Copyright
Copyright © International Astronomical Union 2018 

References

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