000002073 001__ 2073
000002073 005__ 20160701171658.0
000002073 0247_ $$2DOI$$a10.1051/0004-6361:20042097
000002073 037__ $$aASTROimport-230
000002073 100__ $$aReyniers, M.
000002073 245__ $$aThe evolutionary status of the bright high-latitude supergiant HD 190390
000002073 260__ $$c2005
000002073 520__ $$aDespite its mean apparent magnitude of mV = 6.39, the evolutionary status of HD 190390 (HR 7671), a luminous F-type supergiant at high galactic latitude, is still not very clear, but in most papers a post-AGB classification is assumed. New observational material has been obtained with four different instruments and is presented here. An extensive abundance analysis based on high resolution, high signal-to-noise NTT+EMMI spectra confirms the metal deficiency of this object ([Fe/H] = -1.6), together with a high lithium content (log ɛ(Li) = 1.9). A variability analysis based on Geneva photometry over seven years reveals beating with a period of ~3000 days. It is, however, not clear whether this beating is caused by a stable triplet, or it is the consequence of small changes in the main frequency. More recent data obtained with the HIPPARCOS satellite and the Mercator telescope not only confirm the main period, but also support the presence of a second periodicity of 11 days, which was also found in the Geneva photometry. A conclusive evolutionary status of this object is not given, but alternative to the UU Her (i.e. post-AGB) status, a W Vir classification is discussed. Based on observations collected at the European Southern Observatory, La Silla, Chile (programme 61.E-0426), and at the Observatorio del Roque de los Muchachos, La Palma, Spain. 
000002073 700__ $$a Cuypers, J.
000002073 773__ $$c595-608$$i2$$pAstronomy and Astrophysics$$v432$$y2005
000002073 85642 $$ahttp://esoads.eso.org/abs/2005A%26A...432..595R
000002073 905__ $$apublished in
000002073 980__ $$aREFERD