93 citations · 1.4k across the 46 of their papers we have counts for
4 papers · 1 filter
Stroemgren photometry of the Bulge: the Baade's Window and the globular cluster NGC 6522
A. Calamida, G. Bono, C. E. Corsi +11
We present Ca-uvby Stroemgren photometry of the Baade's Window, including the Galactic globular cluster NGC 6522. We separate field and cluster stars by adopting color-color planes…
On a new theoretical calibration of the Stroemgren hk metallicity index: NGC6522 as a first test case
A. Calamida, G. Bono, C. Corsi +11
We present a new theoretical calibration of the Stroemgren metallicity index hk by using alpha-enhanced evolutionary models transformed into the observational plane by using atmosp…
On a new parameter to estimate the helium content in old stellar systems
F. Troisi, G. Bono, P. B. Stetson +19
We introduce a new parameter Δξ - the difference in magnitude between the red giant branch (RGB) bump and a point on the main sequence (MS) at the same color as the bump, the "benc…
The Carina Project. IV. radial velocity distribution
M. Fabrizio, M. Nonino, G. Bono +16
We present new and accurate radial velocity (RV) measurements of luminous stars of all ages (old horizontal branch, intermediate--age red clump, and young blue plume, as well as re…