SIMBAD references

2018A&A...617A..79P - Astronomy and Astrophysics, volume 617A, 79-79 (2018/9-1)

Time-dependent spectral-feature variations of stars displaying the B[e] phenomenon. IV. V2028 Cygni: modelling of Hα bisector variability.


Abstract (from CDS):

We present an alternative model of V2028 Cyg, a B[e] star of FS CMa type. The star V2028 Cyg is atypical among FS CMa stars due to its composite spectra of B4III and K2II-Ib type. Our modelling of the temporal variability of the Hα line bisectors indicates as the most probable model a geometrically and optically thick disc, which is surrounded by a dusty ring seen almost edge-on. This provides a possibility that the K-spectral component is formed in the disc.

Abstract Copyright: © ESO 2018

Journal keyword(s): stars: emission-line, Be - stars: mass-loss - accretion, accretion disks - binaries: spectroscopic - stars: individual: MWC 623

Simbad objects: 14

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