AAOmega spectroscopy of 29 351 stars in fields centered on ten Galactic globular clusters^⋆

¹ Departamento de AstronomíaUniversidad de Concepción, Casilla 160 C, Concepción, Chile
e-mail: rlane@astro-udec.cl
² Sydney Institute for Astronomy, School of Physics, A28, The University of Sydney, NSW, 2006, Australia
³ Konkoly Observatory of the Hungarian Academy of Sciences, PO Box 67, 1525 Budapest, Hungary
⁴ Observatoire Astronomique, Université de Strasbourg, CNRS, 67000 Strasbourg, France
⁵ Department of Experimental Physics, University of Szeged, Szeged 6720, Hungary

Received: 4 February 2011
Accepted: 4 April 2011

Abstract

Galactic globular clusters have been pivotal in our understanding of many astrophysical phenomena. Here we publish the extracted stellar parameters from a recent large spectroscopic survey of ten globular clusters. A brief review of the project is also presented. Stellar parameters have been extracted from individual stellar spectra using both a modified version of the RAdial Velocity Experiment (RAVE) pipeline and a pipeline based on the parameter estimation method of RAVE. We publish here all parameters extracted from both pipelines. We calibrate the metallicity and convert this to [Fe/H] for each star and, furthermore, we compare the velocities and velocity dispersions of the Galactic stars in each field to the Besançon Galaxy model. We find that the model does not correspond well with the data, indicating that the model is probably of little use for comparisons with pencil beam survey data such as this.