IUE observations of W UMA systems AE Phoenicis and TY Mensae.

Abstract

SWP spectra of AE Phe and TY Men are presented and discussed. The spectrum of AE Phe is typical in showing strong emission lines which originate in the chromosphere and transition region. On the basis of the strength of the He II emission line the author predicts that AE Phe should be a moderately strong X-ray source. The spectrum of TY Men is too weakly exposed for a full discussion. It is pointed out that this star is one of the most important for understanding of the activity in W UMa systems.