AAOmega spectroscopy of 29351 stars in fields centered on ten Galactic globular clusters
Identifieur interne : 006D72 ( Main/Exploration ); précédent : 006D71; suivant : 006D73AAOmega spectroscopy of 29351 stars in fields centered on ten Galactic globular clusters
Auteurs : R. R. Lane [Chili, Australie] ; L. L. Kiss [Australie, Hongrie] ; G. F. Lewis [Australie] ; R. A. Ibata [France] ; A. Siebert [France] ; T. R. Bedding [Australie] ; P. Szekely [Hongrie] ; G. M. Szabo [Hongrie]Source :
- Astronomy and astrophysics : (Berlin. Print) [ 0004-6361 ] ; 2011.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Spectrométrie.
English descriptors
- KwdEn :
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.
Affiliations:
- Australie, Chili, France, Hongrie
- Alsace (région administrative), Grand Est, Hongrie centrale, Nouvelle-Galles du Sud
- Budapest, Strasbourg, Sydney
- Université de Strasbourg, Université de Sydney
Links toward previous steps (curation, corpus...)
- to stream PascalFrancis, to step Corpus: 001912
- to stream PascalFrancis, to step Curation: 004644
- to stream PascalFrancis, to step Checkpoint: 001D88
- to stream Main, to step Merge: 007239
- to stream Main, to step Curation: 006D72
Le document en format XML
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<term>Models</term>
<term>Parameter estimation</term>
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<term>Vitesse radiale</term>
<term>Estimation paramètre</term>
<term>Métallicité</term>
<term>Dispersion vitesse</term>
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<front><div type="abstract" xml:lang="en">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.</div>
</front>
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