High-resolution spectroscopy of the variable hot post-AGB star LS 4331 (IRAS 17381-1616)

N. P. Ikonnikova, M. Parthasarathy, I. A. Shaposhnikov +2

An analysis of high-resolution ($R\sim 48000$) optical spectrum of hot (B1Ibe) post-AGB star LS 4331 (IRAS 17381-1616) is presented. The detailed identification of the observed ab…