4 papers
Revised Baade-Wesselink Analysis of RR Lyrae Stars
Carla Cacciari, Gisella Clementini, Fiorella Castelli +1
We have applied the Baade-Wesselink method to two field RR Lyrae stars, i.e. SW And and RR Cet, and derived their distances and physical parameters. With respect to previous B-W an…
Isotopic composition of Hg and Pt in slowly rotating HgMn stars
S. Hubrig, F. Castelli, G. Mathys
Preliminary results from a study of the isotopic compositions of the elements Hg and Pt in a number of HgMn stars are presented. This work represents an improvement over previous s…
New beryllium observations in low-metallicity stars
P. Molaro, P. Bonifacio, F. Castelli +1
We present observations of the Be II 313.0 nm resonance doublet in 14 halo and old disk stars with metallicities ranging from [Fe/H]=-0.4 to about -3.0 obtained with the CASPEC spe…
Abundances of four very metal-poor stars of the BPS survey
Francesca Primas, Paolo Molaro, Fiorella Castelli
High resolution CASPEC and EMMI spectra (R10) of the faint metal- deficient candidates CS 22891--209, CS 22897--8, CS 22948--66 and CS 22968--14 taken from the survey…