Line identifications in the spectrum of $\ddot{I}‡$ Lupi A

Abstract

We present new abundance determinations for the sharp-lined HgMn star χ Lupi A from archival FEROS spectra. Selected unblended lines with accurate atomic data have been synthesized to derive new abundances for χ Lupi A. These spectra show evidence of the presence of blue-shifted lines of the companion χ Lupi B. The synthesis of the spectrum of χ Lupi B confirms that this star is cooler, probably an early A star with normal abundances.

2 pages, 1 figure, accepted proceeding (poster) of SF2A2018