3 papers
astro-ph2002
Anomalous RR Lyrae stars(?). III. CM Leonis
L. Di Fabrizio, G. Clementini, M. Marconi +8
Time series of B,V,I CCD photometry and radial velocity measurements from high resolution spectroscopy (R=30,000) covering the full pulsation cycle are presented for the field RR L…
astro-ph2000
CU Comae: a new field double-mode RR Lyrae, the most metal poor discovered to date
G. Clementini, S. Di Tomaso, L. Di Fabrizio +12
We report the discovery of a new double-mode RR Lyrae variable (RRd) in the field of our Galaxy: CU Comae. CU Comae is the sixth such RRd identified to date and is the most metal-p…
astro-ph1998
Homogeneous photometry and metal abundances for a large sample of Hipparcos metal-poor stars
G. Clementini, R. G. Gratton, E. Carretta +1
Homogeneous photometric data (Johnson V, B-V, V-K, Cousins V-I and Stromgren b-y), radial velocities, and abundances of Fe, O, Mg, Si, Ca, Ti, Cr and Ni are presented for 99 stars…