Low-resolution spectroscopy of the chromospherically active stars 61 Cyg AB with small telescopes
We carried out high-speed low-resolution spectroscopy of two stars, 61 Cyg A and B with small telescopes. They are known as chromospherically active stars of the K5V (A) and K7V (B) spectral types. These two stars are supposed to have high-powered chromospheres. Spectroscopic monitoring of both star...
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| Datum: | 2014 |
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| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | English |
| Veröffentlicht: |
Головна астрономічна обсерваторія НАН України
2014
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| Schriftenreihe: | Advances in Astronomy and Space Physics |
| Online Zugang: | http://dspace.nbuv.gov.ua/handle/123456789/119806 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Low-resolution spectroscopy of the chromospherically active stars 61 Cyg AB with small telescopes / S.M. Pokhvala, B.E. Zhilyaev, V.M. Reshetnyk, V.I. Shavlovskij // Advances in Astronomy and Space Physics. — 2014. — Т. 4., вип. 1-2. — С. 25-27. — Бібліогр.: 5 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | We carried out high-speed low-resolution spectroscopy of two stars, 61 Cyg A and B with small telescopes. They are known as chromospherically active stars of the K5V (A) and K7V (B) spectral types. These two stars are supposed to have high-powered chromospheres. Spectroscopic monitoring of both stars showed variations of intensity in the Balmer lines and the Mg b triplets at time intervals ranging from seconds to several minutes. From the spectrum data one can find that relative variations in the Hα, Hβ lines and the Mg b triplets are about 1% and the relative power of chromospheric activity about 2 · 10⁻⁴. |
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