153 citations · 1.2k across the 24 of their papers we have counts for
6 papers · 1 filter
A Method to Derive the Absolute Composition of the Sun, the Solar System and the Stars
L. Piersanti, O. Straniero, S. Cristallo
The knowledge of isotopic and elemental abundances of the pristine solar system material provides a fundamental test of galactic chemical evolution models, while the composition of…
Deep FORS1 observations of the double Main Sequence of omega Centauri
A. Sollima, F. R. Ferraro, M. Bellazzini +3
We present the results of a deep photometric survey performed with FORS1@VLT aimed at investigating the complex Main Sequence structure of the stellar system omega Centauri. We con…
Activation measurement of the 3He(alpha,gamma)7Be cross section at low energy
D. Bemmerer, F. Confortola, H. Costantini +27
The nuclear physics input from the 3He(alpha,gamma)7Be cross section is a major uncertainty in the fluxes of 7Be and 8B neutrinos from the Sun predicted by solar models and in the…
Short-lived isotopes and 23Na production in low mass AGB Stars
S. Cristallo, R. Gallino, O. Straniero +2
We discuss the synthesis of some short-lived isotopes and of 23Na in thermally pulsing AGB stars with initial mass of 2 Msun and two different metallicities (Z=1.5e-2, correspondin…
First measurement of the 14N(p,gamma)15O cross section down to 70 keV
A. Lemut, D. Bemmerer, F. Confortola +28
In stars with temperatures above 20*10^6 K, hydrogen burning is dominated by the CNO cycle. Its rate is determined by the slowest process, the 14N(p,gamma)15O reaction. Deep underg…
An empirical calibration of the mixing-length parameter alpha
F. R. Ferraro, E. Valenti, O. Straniero +1
We present an empirical calibration of the Mixing-Length free parameter based on a homogeneous Infrared database of 28 Galactic globular clusters spanning a wide metallicity ra…