SIMBAD references

2005MNRAS.357..265S - Mon. Not. R. Astron. Soc., 357, 265-274 (2005/February-2)

On the discrete nature of the red giant branch of ω Centauri.

SOLLIMA A., FERRARO F.R., PANCINO E. and BELLAZZINI M.

Abstract (from CDS):

We report on the results of an extensive Very Large Telescope high-resolution imaging campaign of the central region of the giant globular cluster ω Centauri. More than 100000 stars have been measured in the inner 9x9 arcmin2 region of the cluster. On the basis of multiband colour-magnitude diagrams, we confirm the existence of multiple stellar populations along the red giant branch (RGB). Moreover, thanks to the high precision of this data set, we conclude that the RGB does not present a smooth and continuous distribution, but shows a discrete structure: besides the metal-poor and the extreme metal-rich population (anomalous RGB), the existence of three metal intermediate populations is shown.

Abstract Copyright: 2005 RAS

Journal keyword(s): techniques: photometric - stars: evolution - stars: Population II - globular clusters: individual: ω Centauri

VizieR on-line data: <Available at CDS (J/MNRAS/357/265): catalog.dat>

Nomenclature: Catalog: Cl* NGC 5139 SGP NNNNNN (Nos 1-106186).

Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.

Simbad objects: 1

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