Is the B[e] Star V2028 Cyg a Binary?
| Autor: | D. Korčáková, Viktor Votruba, Miroslav Šlechta, Blanka Kučerová, Petr Škoda, Jan Polster |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Physics
B(e) star 010504 meteorology & atmospheric sciences Binary number Astronomy Astronomy and Astrophysics Astrophysics Star (graph theory) 01 natural sciences Spectral line Space and Planetary Science 0103 physical sciences H-alpha 010303 astronomy & astrophysics 0105 earth and related environmental sciences |
| Zdroj: | Proceedings of the International Astronomical Union. 7:309-310 |
| ISSN: | 1743-9221 1743-9213 |
| DOI: | 10.1017/s1743921311027657 |
| Popis: | V2028 Cyg shows a B[e] phenomenon. Due to the presence of both cool (K7III) and hot (B4III) components in the spectra, it is supposed to be a binary. Our modelling of the time variability of Hα line bisectors shows, however, that this hybrid spectrum can originate in one star, which is surrounded by a disc. |
| Databáze: | OpenAIRE |
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