723 citations · 5.7k across the 104 of their papers we have counts for
6 papers · 1 filter
On a new Near-Infrared method to estimate the absolute ages of star clusters: NGC3201 as a first test case
G. Bono, P. B. Stetson, D. A. VandenBerg +24
We present a new method to estimate the absolute ages of stellar systems. This method is based on the difference in magnitude between the main sequence turn-off (MSTO) and a well d…
Galactic Cepheids with Spitzer: I. Leavitt Law and Colors
M. Marengo, N. R. Evans, P. Barmby +3
Classical Cepheid variable stars have been important indicators of extragalactic distance and Galactic evolution for over a century. The Spitzer Space Telescope has opened the poss…
Stromgren photometry of Galactic Globular Clusters. II Metallicity distribution of red giants in Omega Centauri
A. Calamida, G. Bono, P. B. Stetson +23
We present new intermediate-band Stroemgren photometry based on more than 300 u,v,b,y images of the Galactic globular cluster Omega Cen. Optical data were supplemented with new mul…
The Dependency of the Cepheid Period-Luminosity Relation on Chemical Composition
M. Romaniello, F. Primas, M. Mottini +6
The dependency of the Cepheid Period-Luminosity Relation on chemical composition at different wavelengths is assessed via direct detailed abundance analysis of Galactic and Magella…
On the stellar content of the starburst galaxy IC10
N. Sanna, G. Bono, P. B. Stetson +17
We investigate the stellar content of the starburst dwarf galaxy IC10 using accurate and deep optical data collected with the Advanced Camera for Surveys and with the Wide Field Pl…
On the radial distribution of horizontal branch stars in ngc2808
G. Iannicola, M. Monelli, G. Bono +17
We present accurate new ultraviolet and optical BVI photometry for the Galactic globular cluster ngc2808, based on both ground-based and archival HST imagery. From this we have sel…