M. Bellazzini

Publications336
h-index56
Citations15,106
Highly Influential Citations1,465
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Na-O anticorrelation and HB. VII. The chemical composition of first and second-generation stars in 1
We present abundances of Fe, Na, and O for 1409 red giant stars in 15 galactic globular clusters (GCs), derived from the homogeneous analysis of high-resolution FLAMES/GIRAFFE spectra. Combining the…
Gaia Data Release 2
Context. We present the second Gaia data release, Gaia DR2, consisting of astrometry, photometry, radial velocities, and information on astrophysical parameters and variability, for sources brighter…
Detailed abundances of a large sample of giant stars in M 54 and in the Sagittarius nucleus
Homogeneous abundances of light elements, α-elements, and Fe-group elements from high-resolution FLAMES spectra are presented for 76 red giant stars in NGC 6715 (M 54), a massive globular cluster…
A Step toward the Calibration of the Red Giant Branch Tip as a Standard Candle
The absolute I magnitude of the tip of the red giant branch (M) is one of the most promising standard candles actually used in astrophysics as a fundamental pillar for the cosmological distance…
2MASS NIR photometry for 693 candidate globular clusters in M 31 and the Revised Bologna Catalogue
We have identified in the 2MASS database 693 known and candidate globular clusters in M 31. The 2MASS J, H, K magnitudes of these objects have been transformed to the same homogeneous photometric…
M54 + Sagittarius = ω Centauri
We derive homogeneous abundances of Fe, O, Na, and α-elements from high-resolution FLAMES spectra for 76 red giant stars in NGC 6715 (M54) and for 25 red giants in the surrounding nucleus of the…
The calibration of the RGB Tip as a Standard Candle Extension to Near Infrared colors and higher metallicity
New empirical calibrations of the Red Giant Branch Tip in the I, J, H and K bands based on two fundamental pillars, namely ω Centauri and 47 Tucanae, have been obtained by using a large optical and…
Metallicities, Relative Ages, and Kinematics of Stellar Populations in ω Centauri*
We present results of an extensive spectroscopic survey of subgiant stars in the stellar system ω Cen. Using infrared Ca II triplet lines, we derived metallicities and radial velocities for more than…
The Nucleus of the Sagittarius dSph Galaxy and M54: A Window on the Process of Galaxy Nucleation
We present the results of a thorough study of the nucleus of the Sgr dwarf spheroidal galaxy (Sgr dSph) and of the bright globular cluster M54 (NGC 6715) that resides within the same nucleus (Sgr,N).…
The age of the main population of the Sagittarius dwarf spheroidal galaxy. Solving the "M giant conundrum"
We present a statistically decontaminated Color Magnitude Diagram of a $1\degr\times 1\degr$ field in the core of the Sagittarius dSph galaxy. Coupling this CMD with the most recent metallicity…
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