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Yields of AGB and SAGB models with chemistry of low- and high-metallicity globular clusters
We present yields from stars of mass in the range Mo<M<8Mo of metallicities Z=0.0003 and Z=0.008, thus encompassing the chemistry of low- and high-Z Globular Clusters. The yields are based on fullExpand
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Multiple stellar populations in 47 Tucanae
We use Hubble Space Telescope (HST) and ground-based imaging to study the multiple populations of 47 Tucanae (47 Tuc), combining high-precision photometry with calculations of synthetic spectra.Expand
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NGC 2419: a large and extreme second generation in a currently undisturbed cluster
We analyse complementary Hubble Space Telescope and Subaru data for the globular cluster NGC 2419. We make a detailed analysis of the horizontal branch (HB), which is composed of two main groups ofExpand
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A NEW CENSUS OF THE VARIABLE STAR POPULATION IN THE GLOBULAR CLUSTER NGC 2419
We present B, V, and I CCD light curves for 101 variable stars belonging to the globular cluster NGC 2419, 60 of which are new discoveries, based on data sets obtained at the Telescopio NazionaleExpand
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On the Remote Galactic Globular Cluster NGC 2419
We present a new, deep (V ~ 26) study of the Galactic globular cluster NGC 2419 based on B, V, I time-series CCD photometry over about 10 years and extending beyond the cluster published tidalExpand
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RR Lyrae Stars in Galactic Globular Clusters. II. A Theoretical Approach to Variables in M3
We present predicted relations connecting pulsational (period and amplitude of pulsation) and evolutionary (mass, absolute magnitude, and color) parameters, as based on a wide set of convectiveExpand
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The Star Formation Main Sequence in the Hubble Space Telescope Frontier Fields
We investigate the relation between star formation rate (SFR) and stellar mass (M), i.e. the Main Sequence (MS) relation of star-forming galaxies, at 1.3 ≤ z < 6 in the first four HST FrontierExpand
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The helium spread in the globular cluster 47 Tuc
Spectroscopy has shown the presence of CN band dichotomy and Na–O anticorrelations for 50–70 per cent of the investigated samples in the cluster 47 Tuc, otherwise considered a ‘normal’ prototype ofExpand
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Dust formation around AGB and SAGB stars: a trend with metallicity?
We calculate the dust formed around asymptotic giant branch (AGB) and super-AGB stars of metallicity Z = 0.008 by following the evolution of models with masses in the range 1 M⊙ ≤ M ≤ 8 M⊙ throughExpand
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Dust production rate of asymptotic giant branch stars in the Magellanic Clouds
We compare theoretical dust yields for stars with mass 1 Msun 3 Msun and Z > 0.001. When compared to the most recent observations, our models support a stellar origin for the existing dust mass, ifExpand
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