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The Status of Absolute Proper Motions and the Kinematics of Globular Clusters

Published online by Cambridge University Press:  07 August 2017

M. Geffert ,
B. Dauphole ,
J. Colin ,
M. Odenkirchen ,
H.-J. Tucholke  and
C. Ducourant
M. Geffert
Affiliation:
Sternwarte der Univ. Bonn, D-53121 Bonn, and Observatoire de l'Univ. de Bordeaux, F-33270 Floirac
B. Dauphole
Affiliation:
Sternwarte der Univ. Bonn, D-53121 Bonn, and Observatoire de l'Univ. de Bordeaux, F-33270 Floirac
J. Colin
Affiliation:
Sternwarte der Univ. Bonn, D-53121 Bonn, and Observatoire de l'Univ. de Bordeaux, F-33270 Floirac
M. Odenkirchen
Affiliation:
Sternwarte der Univ. Bonn, D-53121 Bonn, and Observatoire de l'Univ. de Bordeaux, F-33270 Floirac
H.-J. Tucholke
Affiliation:
Sternwarte der Univ. Bonn, D-53121 Bonn, and Observatoire de l'Univ. de Bordeaux, F-33270 Floirac
C. Ducourant
Affiliation:
Sternwarte der Univ. Bonn, D-53121 Bonn, and Observatoire de l'Univ. de Bordeaux, F-33270 Floirac

Extract

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We have studied a sample of 26 globular clusters for which so far absolute proper motions exist in the literature. The proper motions were combined with distances and radial velocities for a determination of the space motion of the clusters. Using different galactic potentials (see Dauphole & Colin 1994 and references therein) we calculated the orbits of the globular clusters and their time averaged eccentricities, total energies, and apo- and perigalactic distances. The relation of the orbital quantities to the metallicities of the globular clusters has been studied. Preliminary results of this study were presented in Geffert et al. (1993).

Type
Poster Papers
Information
Symposium - International Astronomical Union , Volume 164: Stellar Populations , 1995 , pp. 406
Copyright
Copyright © Kluwer 1995 

References

Dauphole, B., Colin, J., 1994, A&A (in press) Google Scholar
Dauphole, B., Geffert, M., Colin, J., Ducourant, C., Odenkirchen, M., Tucholke, H.-J., 1994, A&A (submitted) Google Scholar
Geffert, M., Colin, J., Dauphole, B., Ducourant, C., Odenkirchen, M., Tucholke, H.-J., 1993, AG Abstr. Ser. 9, 168 CrossRefGoogle Scholar
Majewski, S.R., 1994, ApJ 431, L17 CrossRefGoogle Scholar