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Structure of the Galactic Halo towards the North Galactic Pole
T. D. Kinman, A. Bragaglia, C. Cacciari +2
We have used RR Lyrae and Blue HB stars as tracers of the old Galactic halo, in order to study the halo structure and the galactic rotation as a function of height above the plane.…
A multi-color and Fourier study of RR Lyrae variables in the globular cluster NGC 5272 (M3)
C. Cacciari, T. M. Corwin, B. W. Carney
We have performed a detailed study of the pulsational and evolutionary characteristics of 133 RR Lyrae stars in the globular cluster NGC5272 (M3) using highly accurate BVI data tak…
Star-to-star Na and O abundance variations along the red giant branch in NGC 2808
Eugenio Carretta, Angela Bragaglia, Carla Cacciari
We report for the first time Na and O abundances from high-resolution, high S/N echelle spectra of 20 red giants in NGC 2808, taken as part of the Science Verification program of t…