Publication details
Preliminary analysis of light curves of the seven carbon stars
| Authors | |
|---|---|
| Year of publication | 2003 |
| Type | Article in Periodical |
| Magazine / Source | Contributions of the Astronomical Observatory Skalnaté Pleso |
| MU Faculty or unit | |
| Citation | |
| Field | Astronomy and astrophysics |
| Keywords | AGB stars; carbon stars; individual stars; stellar pulsations; periods; UBV photometry; Hipparcos photometry |
| Description | We present a preliminary analysis of light curves of the following carbon stars: WZ Cas, VY UMa, Y CVn, RY Dra, T Lyr, HK Lyr and TT Cyg, constructed on the basis of our own BV photoelectric observations done at the Brno Observatory in 1979-94 and Hipparcos observations. The analysis suggests that "semiregular" light curves of all studied stars can be faithfully expressed by a superposition of long-term changes and a set of medium-term harmonic variations (possibly pulsations) with periods from 50 to 500 days. |
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