Abstract
Abstract Line variations are studied in the far-ultraviolet spectra of 78 Vir collected with International Ultraviolet Explorer at phases of far-UV maximum and at phases of far-UV minimum. The far-UV spectrum of 78 Vir is populated with low-excitation transitions of light elements and iron-peak elements. The low excitation C i and N i lines are stronger at phases of far-UV minimum. Carbon appears to be underabundant and aluminum very underabundant in the atmosphere of 78 Vir. The lines of Si i and Si ii are stronger at phases of far-UV minimum. Many lines which strengthen at phases of far-UV minimum are due to low-excitation lines of Fe ii and Cr ii which suggests that both iron and chromium are unevenly distributed over the surface of 78 Vir.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call