Some clues on the tilt of the Horizontal Branches in metal-rich clusters

E. Brocato (1); G. Piotto (3) ((1) INAF-Osservatorio Astronomico di Collurania; G. Raimondo (1); Italy); Italy; (2) INAF-Osservatorio Astronomico di Monte Porzio; Italy; (3) Universita' di Padova; Roma; S. Cassisi (1); Teramo; V. Castellani (2)

arxiv: astro-ph/0209574 · v1 · submitted 2002-09-27 · 🌌 astro-ph

Some clues on the tilt of the Horizontal Branches in metal-rich clusters

G. Raimondo (1) , V. Castellani (2) , S. Cassisi (1) , E. Brocato (1) , G. Piotto (3) ((1) INAF-Osservatorio Astronomico di Collurania , Teramo , Italy; (2) INAF-Osservatorio Astronomico di Monte Porzio , Roma

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Italy; (3) Universita' di Padova Italy)

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classification 🌌 astro-ph

keywords cluesclustershorizontalmetal-richsometiltbranchbranches

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We discuss some clues on the large tilt observed in the Horizontal Branch of the metal-rich galactic globular clusters NGC 6388 and NGC 6441. This not yet understood feature is investigated from theoretical and observational sides.

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Some clues on the tilt of the Horizontal Branches in metal-rich clusters

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