Stellar spectral synthesis in the ultraviolet

A computer program for spectral synthesis has been developed, based on a list of data for atomic lines described by Kurucz, Peytremann, and Avrett. To demonstrate the usefulness of this program, we present a sample calculation of the region around the C w resonance doublet at 155 nm, which is a feature in rocket and satellite spectra of B stars. The calculation indicates that the observed feature is a blend of many lines in addition to C iv, so that detailed calculations are necessary for the correct interpretation of the observational data. Subject headings: atmospheres, stellar-line profiles-ultraviolet