Abstract
Abstract
The synthesis of spectral intervals in the optical range allows the determination of LTE abundances of several chemical elements lighter than titanium for HD 110073. Compared to the solar abundances, helium, magnesium, oxygen, aluminum, silicon and calcium are underabundant by factors of 0.4, 0.25, 0.90, 0.20, 0.85, 0.5 times the respective solar abundances. Carbon and sulfur have solar abundances. Phosphorus and scandium are overabundant by factors of 10 and 30 times their solar abundances. These new determinations differ from previous determinations partly because the atomic data have changed. A non-uniform distribution of the elements over the surface of HD 110073 could also account for the differences.
Publisher
American Astronomical Society