A RAVE investigation on Galactic open clusters: I. radial velocities and metallicities

C. Conrad, R. D. Scholz, N. V. Kharchenko, A. E. Piskunov, E. Schilbach, S. Röser, C. Boeche, G. Kordopatis, A. Siebert, M. Williams, U. Munari, G. Matijevič, E. K. Grebel, T. Zwitter, R. S. De Jong, M. Steinmetz, G. Gilmore, G. Seabroke, K. Freeman, J. F. NavarroQ. Parker, W. Reid, F. Watson, B. K. Gibson, O. Bienaymé, R. Wyse, J. Bland-Hawthorn, A. Siviero

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Context. Galactic open clusters (OCs) mainly belong to the young stellar population in the Milky Way disk, but are there groups and complexes of OCs that possibly define an additional level in hierarchical star formation? Current compilations are too incomplete to address this question, especially regarding radial velocities (RVs) and metallicities ([M/H]).

Aims. Here we provide and discuss newly obtained RV and [M/H] data, which will enable us to reinvestigate potential groupings of open clusters and associations.

Methods. We extracted additional RVs and [M/H] from the RAdial Velocity Experiment (RAVE) via a cross-match with the Catalogue of Stars in Open Cluster Areas (CSOCA). For the identified OCs in RAVE we derived RV and [M/H] from a cleaned working sample and compared the results with previous findings.

Results. Although our RAVE sample does not show the same accuracy as the entire survey, we were able to derive reliable RV for 110 Galactic open clusters. For 37 OCs we publish RV for the first time. Moreover, we determined [M/H] for 81 open clusters, extending the number of OCs with [M/H] by 69.

Original languageEnglish
Article numberA54
Pages (from-to)1-16
Number of pages16
JournalAstronomy and Astrophysics
Publication statusPublished - Feb 2014

Bibliographical note

Copyright ESO 2014. First published in Astronomy and astrophysics 562, A54, 2014, published by EDP Sciences. The original publication is available at http://doi.org/10.1051/0004-6361/201322070


  • open clusters and associations: general
  • solar neighborhood
  • galaxy: kinematics and dynamics
  • stars: kinematics and dynamics
  • stars: abundances

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