190 citations · 570 across the 7 of their papers we have counts for
11 papers · 1 filter
The evolution of the Galactic metallicity gradient from high-resolution spectroscopy of open clusters
Laura Magrini, Paola Sestito, Sofia Randich +1
Open clusters offer a unique possibility to study the time evolution of the radial metallicity gradients of several elements in our Galaxy, because they span large intervals in age…
Open clusters as key tracers of Galactic chemical evolution. III. Element abundances in Berkeley 20, Berkeley 29, Collinder 261, and Melotte 66
P. Sestito, A. Bragaglia, S. Randich +3
Galactic open clusters are since long recognized as one of the best tools for investigating the radial distribution of iron and other metals. We employed FLAMES at VLT to collect U…
An assessment of Li abundances in weak-lined and classical T Tauri stars of the Taurus-Auriga association
P. Sestito, F. Palla, S. Randich
Accurate measurements of lithium abundances in young low-mass stars provide an independent and reliable age diagnostics. Previous studies of nearby star forming regions have identi…
Tracing mixing in stars: new beryllium observations of the open clusters NGC 2516, Hyades, and M67
S. Randich, F. Primas, L. Pasquini +2
Determinations of beryllium abundance in stars, together with lithium, provide a key tool to investigate the so far poorly understood extra-mixing processes at work in stellar inte…
Element abundances in the metal rich open cluster NGC6253
P. Sestito, S. Randich, A. Bragaglia
We have carried out a big FLAMES survey of 10 Galactic open clusters aiming at different goals. One of them is the determination of chemical abundances, in order to put constraints…
The effect of heavy element opacity on pre-main sequence Li depletion
P. Sestito, S. Degl Innocenti, P. G. Prada Moroni +1
Recent 3-D analysis of the solar spectrum data suggests a significant change of the solar chemical composition. This may affect the temporal evolution of the surface abundance of l…