The IUE-UV spectrum of the CP2 star HR 465.

Abstract

Consideration is given to eleven high resolution IUE spectra of the chemically peculiar star HR 465 obtained between 1979 and 1982. The spectra are compared to those of Pi Cet, Nu Cap, Vega, HD 101065, alpha exp 2 CVn, Kappa Cnc, HR 4072, and HR 7775. About 2500 lines are identified in the HR 465 spectra. Most of these lines belong to iron-peak elements, especially Fe II. The presence of other ions, including Ni II, Zn II, Ga II, Nb II, Eu II, and Eu III, is examined. It is shown that the rare-earth elements that are strong in the optical spectra of HR 465 are very weak, if present, in the IUE region. Lines of Pt II are found for HR 465. The results also suggest that Au II, Hg II, and Bi II are probably present.