Elemental abundances in the atmospheres of three metal-deficient giants.

Details Elemental abundances in the atmospheres of three metal-deficient giants. Elemental abundances in the atmospheres of three metal-deficient giants.

Mar 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26as..109..471m&link_type=abstract

Astronomy and Astrophysics Suppl. 109, 471-477 (1995)

Astronomy and Astrophysics

Astrophysics

5

Stars: Hd 170737, Hd 175305, Hd 232078, Stars: Abundances, Galaxy: Evolution, Abundances

Scientific paper

High dispersion high resolution CCD spectra have been used for the determination of the elemental abundances in three metal-deficient stars. The following results were obtained: 1) an overabundance of O is found; 2) Si, Ca, Ti are overabundant with respect to iron in stars with [Fe/H]= -1.5; 3) halo stars show an underabundance of the odd elements Na and Al relative to the abundance of the even element Mg); 4) Ni and Mn are slightly overdeficient; 5) an underabundance of Cu is found in all three stars ; 6) s-process elements are slightly overabundant.

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