Thévenin, F; Jasniewicz, G; Parthasarathy, M
(Kluwer Academic Publishers, 2001-08)
HD 179821 (IRAS 19114+0002) is classified as a moderately metal-poor ([Fe/H] = - 0.5) post-AGB star of Teff = 5660 K and also as a very massive supergiant of Teff = 6750 K. Recent detailed studies of this star are not able ...