Chemical Abundances Calculations Using Synthetic Spetra

PINTADO, O.I.; ADELMAN, S.J.

Isla Margarita, Venezuela

Congreso; XII Reunion Regional Laatinoamericana de la IAU; 2007

Elemental abundance analysis are derived for a Mercury-Manganese starHR4817 (B8II/III) using CCDrecorded exposures obtained with the EBASIM echelle spectrograph from 2.1mCASLEO (Complejo Astron´{o}mico El Leoncito) telescope in Argentina. The spectra coverage is 390-900 nm. The abundances and microturbulence are calculated using synthetic spectra. The results are compared with previous analyses made withspectra taken using the REOSC echelle spectrograph at CASLEO. With this method we could make betterdeterminations of abundances and microturbulence and find new chemical elements.(B8II/III) using CCDrecorded exposures obtained with the EBASIM echelle spectrograph from 2.1mCASLEO (Complejo Astron´{o}mico El Leoncito) telescope in Argentina. The spectra coverage is 390-900 nm. The abundances and microturbulence are calculated using synthetic spectra. The results are compared with previous analyses made withspectra taken using the REOSC echelle spectrograph at CASLEO. With this method we could make betterdeterminations of abundances and microturbulence and find new chemical elements.