76 citations · 675 across the 22 of their papers we have counts for
22 papers
On the RR Lyrae stars in globulars: IV. Centauri Optical UBVRI Photometry
V. F. Braga, P. B. Stetson, G. Bono +31
New accurate and homogeneous optical UBVRI photometry has been obtained for variable stars in the Galactic globular Cen (NGC 5139). We secured 8202 CCD images covering a time i…
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…
A 3-D study of the photosphere of HD99563: I. Pulsation analysis
L. M. Freyhammer, D. W. Kurtz, V. G. Elkin +5
We have used high-speed spectroscopy of the rapidly oscillating Ap (roAp) star HD99563 to study the pulsation amplitude and phase behaviour of elements in its stratified atmosphere…
Relative distances of Omega Centauri and 47 Tucanae
G. Bono, P. B. Stetson, N. Sanna +18
We present precise optical and near-infrared ground-based photometry of two Globular Clusters (GCs): Omega Cen and 47 Tuc. These photometric catalogs are unbiased in the Red Giant…
A search for rapid pulsations in the magnetic cool chemically peculiar star HD3980
V. G. Elkin, D. W. Kurtz, L. M. Freyhammer +2
The Ap star HD3980 appears to be a promising roAp candidate based on its fundamental parameters, leading us to search for rapid pulsations with the VLT UV-Visual Echelle Spectrogra…
On the spectroscopic nature of the cool evolved Am star HD151878
L. M. Freyhammer, V. G. Elkin, D. W. Kurtz
Recently, Tiwari, Chaubey, & Pandey (2007) detected the bright component of the visual binary HD151878 to exhibit rapid photometric oscillations through a Johnson B filter with a p…