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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: [email protected], [email protected], [email protected] 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: [email protected], [email protected], [email protected] Astronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg, Möchhofstrasse 12–14, D–69120 Heidelberg, Germany email: [email protected], [email protected]
S. Röser
Affiliation:
Astronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg, Möchhofstrasse 12–14, D–69120 Heidelberg, Germany email: [email protected], [email protected]
P. Schöfer
Affiliation:
Institut für Astrophysik, Friedrich-Hund-Platz 1, 37077, Göttingen, Germany [email protected]
A. Derekas
Affiliation:
Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, P.O. Box 67, H-1525 Budapest, Hungary [email protected], [email protected]
A. Moor
Affiliation:
Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, P.O. Box 67, H-1525 Budapest, Hungary [email protected], [email protected]
W. Brandner
Affiliation:
Max Planck Institute for Astronomy, Königstuhl 17, D–69117 Heidelberg, Germany email: [email protected], [email protected], [email protected]
T. Henning
Affiliation:
Max Planck Institute for Astronomy, Königstuhl 17, D–69117 Heidelberg, Germany email: [email protected], [email protected], [email protected]
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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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