Wednesday, July 17, 2013

1307.4324 (M. Fabrizio et al.)

On the He burning phases of the Carina dSph    [PDF]

M. Fabrizio, A. Pietrinferni, G. Bono, P. B. Stetson, A. R. Walker, R. Buonanno, S. Cassisi, I. Ferraro, G. Iannicola, M. Monelli, M. Nonino, L. Pulone, F. Thevénin
We performed a detailed comparison between predicted He burning phases and multiband photometry of the Carina dwarf spheroidal galaxy. We found a good agreement with the predictions computed assuming an {\alpha}-enhanced chemical mixture, indicating a mean metallicity [Fe/H] ~ -1.8 with a raw observed peak-to-peak spread in iron abundance of 0.4\pm0.2 dex.
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