INVESTIGADORES
COLLADO Ana Elisa
artículos
Título:
Chemical Abundances of the Magnetic CP Star HD 168733
Autor/es:
A. COLLADO; Z. LÓPEZ GARCÍA
Revista:
REVISTA MEXICANA DE ASTRONOMíA Y ASTROFíSICA
Editorial:
Instituto de Astronomía, UNAM (Universidad Autónoma de México)
Referencias:
Lugar: México; Año: 2009 vol. 45 p. 95 - 105
ISSN:
0185-1101
Resumen:
A detailed abundance analysis has been carried out for the magnetic CPstar HD 168733 using high-resolution spectra obtained with the EBASIM echelle spectrograph at the 2.1 m CASLEO telescope in Argentina. The spectral coverage is 382-700 nm. It is neither a silicon nor a mercury-manganese star. Compared to the Sun, C and N are slightly overabundant, while Mg and S are deficient, Si is normal and P and Cl are overabundant. The iron peak elements Sc, Ti, Cr and Fe are overabundant. Lines of Ti III and Fe III are also identified. HD 168733 shows a great overabundance of Ga, Sr, Y, Zr, Xe, Pt, Hg and of some rare earths.