In: Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 50, no. 3
V. Andreoli - U. Munari
Detaily:
Rok, strany: 2020, 672 - 680
Jazyk: eng
Kľúčové slová:
binaries : symbiotic, surveys : LAMOST
URL originálneho zdroja: http://www.astro.sk/caosp/Eedition/Abstracts/2020/Vol_50/No_3/pp672-680_abstract.html
O článku:
LAMOST J202629.80+423652.0 has been recently classified as a new symbiotic star containing a long-period Mira, surrounded by dust (D-type) and displaying in the optical spectra high ionization emission lines, including the Raman-scattered OVI at 6825 Å. We have observed LAMOST J202629.80+423652.0 photometrically in the BVRI bands and spectroscopically over the 3500-8000 Å range. We have found it to be a normal G8 IV sub-giant star, deprived of any emission line in its spectrum, and reddened by EB-V=0.35 mag. Combining our photometry with data from all-sky patrol surveys, we find LAMOST J202629.80+423652.0 to be non variable, so not pulsating as a Mira. We have compiled from existing sources its spectral energy distribution, extending well into the mid-Infrared, and found it completely dominated by the G8 IV photospheric stellar emission, without any sign of circumstellar dust. We therefore conclude that LAMOST J202629.80+423652.0 is not a symbiotic star, nor it is pulsating or been enshrouded in dust.
Ako citovať:
ISO 690:
Andreoli, V., Munari, U. 2020. LAMOST J202629.80+423652.0 is not a symbiotic star. In Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 50, no.3, pp. 672-680. 1335-1842. DOI: https://doi.org/10.31577/caosp.2020.50.3.672
APA:
Andreoli, V., Munari, U. (2020). LAMOST J202629.80+423652.0 is not a symbiotic star. Contributions of the Astronomical Observatory Skalnaté Pleso, 50(3), 672-680. 1335-1842. DOI: https://doi.org/10.31577/caosp.2020.50.3.672
O vydaní:
Vydavateľ: Astronomical Institute, Slovak Academy of Sciences
Publikované: 1. 7. 2020
Verejná licencia:
