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The eye of Gaia on globular cluster kinematics: Internal rotation

Published online by Cambridge University Press:  11 March 2020

A. Sollima Open the ORCID record for A. Sollima [Opens in a new window] ,
H. Baumgardt  and
M. Hilker Open the ORCID record for M. Hilker [Opens in a new window]
A. Sollima
Affiliation:
Osservatorio di Astrofisica e Scienza dello Spazio, via Gobetti 93/3, 40129Bologna email: [email protected]
H. Baumgardt
Affiliation:
School of Mathematics and Physics, The University of Queensland, St. Lucia, QLD4072,Australia
M. Hilker
Affiliation:
European Southern Observatory, Karl-Schwarzschild-Str. 2, 85748Garching, Germany
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Abstract

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I present the results of a survey of the kinematics of a large sample of Galactic globular clusters performed thanks to the synergy between the 2nd Gaia data release and the most extensive collection of radial velocities. This unprecedented dataset of 3D velocities of thousand of stars in 62 globular clusters has been used to investigate the rotation patterns of these stellar systems providing insight into the impact of two-body relaxation and tides on the formation and evolution of their rotation.

Keywords

methods: data analysismethods: statisticalproper motionstechnique: radial velocitiesstars: kinematics and dynamicsglobular clusters: general
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S351: Star Clusters: From the Milky Way to the Early Universe , May 2019 , pp. 516 - 519
Copyright
© International Astronomical Union 2020

References

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