Recent Progress in Finding Binary Systems with the B[e] Phenomenon
نویسندگان
چکیده
This paper describes recent studies of the FS CMa-type objects, a group stars showing B[e] phenomenon defined in 2007. The objects exhibit strong emission-line spectra with both permitted and forbidden lines suggesting presence B-type star as well IR excesses due to radiation circumstellar dust. These properties are hard explain framework evolution single luminosities between ~300 ~30,000 L? typical most stars. We explore hypothesis that gaseous-and-dusty envelopes CMa either earlier or ongoing mass transfer binary system components. It is detect secondary components these systems because veiling distortions by matter relative faintness companions. Nevertheless, we detected regular radial velocity variations spectral MWC 728, 3 Pup, AS 386 found absorption cool 645, 174, several other objects. diversity discussed context non-conservative evolution.
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ژورنال
عنوان ژورنال: Galaxies
سال: 2023
ISSN: ['2075-4434']
DOI: https://doi.org/10.3390/galaxies11010036