Spectral line identification of the ultraviolet spectrum of the peculiar post-AGB star HD101584 (F0Iape)

Abstract

The high-resolution (R = 10^4) near-ultraviolet IUE spectrum of the peculiar post Asymptotic Giant Branch (post-AGB) supergiant HD101584 (F0Iape) has been analyzed. In the wavelength range between 2500 and 3000ang, 291 out of 332 absorption features are identified. The main contribution comes from FeII, CrII and MnII. Most of the absorption features are blends from several absorption lines. This is mainly due to the intrinsic broad line profiles in the spectrum of HD101584 in combination with the many absorption lines which occur in the UV for a F-type spectrum. The list compiled gives for all measured absorption features between 2500 and 3000ang the measured central wavelength of the core of the profile, the equivalent width of the profile if this could be determined, the depth of the profile, an asymmetry factor, a quality factor and lists the transitions which are responsible for the feature. An analysis of the radial velocities of the absorption profiles will be give in a separate paper.