The second and third parameters of the horizontal branch in globular clusters

Context. The second parameter (the first being metallicity) defining the distribution of stars on the horizontal branch (HB) of globular clusters (GCs) has long been one of the major open issues in our understanding of the evolution of normal stars. Large photometric and spectroscopic databases are...

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Veröffentlicht in:	Astronomy and astrophysics (Berlin) 2010-07, Vol.517, p.A81
Hauptverfasser:	Gratton, R. G., Carretta, E., Bragaglia, A., Lucatello, S., D'Orazi, V.
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Earth, ocean, space Exact sciences and technology globular clusters: general stars: abundances
Online-Zugang:	Volltext
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