000008066 001__ 8066
000008066 005__ 20260313095811.0
000008066 0247_ $$2DOI$$a10.3390/galaxies13020017
000008066 037__ $$aSCART-2026-0139
000008066 100__ $$aBakhytkyzy, Aigerim 
000008066 245__ $$aAS 314: A Massive Dusty Hypergiant or a Low-Mass Post-Asymptotic Giant Branch Object?
000008066 260__ $$c2025
000008066 520__ $$aAS 314 (V452 Sct) is a poorly studied early-type emission-line star, which exhibits an infrared excess at wavelengths longer than 10 μm. Its earlier studies have been limited to small amounts of observational data and led to controversial conclusions about its fundamental parameters and evolutionary status. Comparison of high-resolution spectra of AS 314 taken over 20 years ago with those of Luminous Blue Variables and other high-luminosity objects suggested its observed properties can be explained by a strong stellar wind from a distant (D∼10 kpc) massive star, possibly in a binary system. However, a recent assessment of its low-resolution spectrum along with a new distance from a Gaia parallax (∼1.6 kpc) resulted in an alternative hypothesis that AS 314 is a low-mass post-asymptotic giant branch (post-AGB) star. The latter hypothesis ignored the high-resolution data, which gave rise to the former explanation. We collected over 30 mostly high-resolution spectra taken in 1997─2023, supplemented them with results of long-term photometric surveys, compared the spectra and the spectral energy distribution with those of post-AGB objects and B/A supergiants, and concluded that the observed properties AS 314 are more consistent with those of the latter.
000008066 594__ $$aNO
000008066 700__ $$aMiroshnichenko, Anatoly S.
000008066 700__ $$aKlochkova, Valentina G.
000008066 700__ $$aPanchuk, Vladimir E.
000008066 700__ $$aZharikov, Sergey V.
000008066 700__ $$aMahy, Laurent
000008066 700__ $$aVan Winckel, Hans
000008066 700__ $$aAgishev, Aldiyar T. 
000008066 700__ $$aKhokhlov, Serik A.
000008066 773__ $$n2$$pGalaxies$$v13$$y2025
000008066 8560_ $$flaurent.mahy@ksb-orb.be
000008066 8564_ $$s564093$$uhttps://publi2-as.oma.be/record/8066/files/galaxies-13-00017.pdf
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000008066 8564_ $$s4708$$uhttps://publi2-as.oma.be/record/8066/files/galaxies-13-00017.jpg?subformat=icon-180$$xicon-180
000008066 905__ $$apublished in
000008066 980__ $$aREFERD