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Cepheids in Galactic Open Clusters: An All-sky Census

Published online by Cambridge University Press:  20 April 2012

Richard I. Anderson ,
Laurent Eyer  and
Nami Mowlavi
Richard I. Anderson
Affiliation:
Observatoire de Genève, CH-1290 Versoix, Swizterland email: [email protected]
Laurent Eyer
Affiliation:
Observatoire de Genève, CH-1290 Versoix, Swizterland email: [email protected]
Nami Mowlavi
Affiliation:
Observatoire de Genève, CH-1290 Versoix, Swizterland email: [email protected]
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Abstract

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We perform an all-sky search for classical (type I) Cepheids that are members of Galactic Open Clusters. Our approach is multi-dimensional, using all available spatial and kinematic parameters. The quantification of errors is crucial for this analysis, so care is taken to find adequate and realistic representations of parameter uncertainties. The data employed in the calculation are taken from published catalogues and the literature, supplemented by specific radial-velocity observations. Our work in progress is outlined here, and issues related to the inhomogeneity of cluster radii in the literature are discussed in some detail.

Keywords

(stars: variables:) Cepheids(Galaxy:) open clusters and associations: generalstars: evolutionstars: distancesastrometrystars: kinematicscataloguesastronomical data bases: miscellaneous(cosmology:) distance scale
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S285: New Horizons in Time-Domain Astronomy , September 2011 , pp. 275 - 277
Copyright
Copyright © International Astronomical Union 2012

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