198 citations · 316 across the 9 of their papers we have counts for
6 papers · 1 filter
Kinematics of the disk population in the GAIA era
G. Bertelli, A. Vallenari, S. Pasetto +1
GAIA data will create a precise 3-dimensional map of the Galaxy, providing positional information, radial velocities, luminosity, temperature and chemical composition of a represen…
Automatic Observation Rendering (AMORE) I. On a synthetic stellar population's colour-magnitude diagram
Y. K. Ng, E. Brogt, C. Chiosi +1
A new method, AMORE - based on a genetic algorithm optimizer, is presented for the automated study of colour-magnitude diagrams. The method combines several stellar population synt…
The Star Formation History of the Local Group dwarf galaxy Leo I
Carme Gallart, Wendy Freedman, Antonio Aparicio +2
We present a quantitative analysis of the star formation history (SFH) of the Local Group dSph galaxy Leo I, from the information in its HST [(V-I),I] color-magnitude diagram (CMD)…
The galactic disc age-metallicity relation
Y. K. Ng, G. Bertelli, G. Carraro +1
New ages are computed for stars in the Solar Neighbourhood from the Edvardsson et al. (1993) data set. Distances derived from the Hipparcos parallaxes were adopted to obtain reliab…
Revised ages for the stars in the solar neighbourhood
Y. K. Ng, G. Bertelli
New ages are computed for the stars from the Edvardsson et al. (1993) data set. The revised values are systematically larger toward older ages (t>4 Gyr), while they are slightly lo…
On the extinction towards Baade's Window
Y. K. Ng, G. Bertelli
An analysis is made on the morphology of the sequences, formed by stars distributed along the line of sight in (V,V--I) colour-magnitude diagrams from Baade's Window (l=1.0,b=-3.9)…