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

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F18%3A00111631" target="_blank" >RIV/00216224:14310/18:00111631 - isvavai.cz</a>
Result on the web
<a href="https://www.aanda.org/articles/aa/pdf/2018/09/aa32772-18.pdf" target="_blank" >https://www.aanda.org/articles/aa/pdf/2018/09/aa32772-18.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/201832772" target="_blank" >10.1051/0004-6361/201832772</a>

Result language
angličtina
Original language name
Time-dependent spectral-feature variations of stars displaying the B[e] phenomenon IV. V2028 Cygni: modelling of H alpha bisector variability
Original language description
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 H alpha 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.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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