FIRST RESULTS FROM TIEN-SHAN SURVEY TO SEARCH FOR VARIABLE STARS: LIGHTCURVE ANALYSIS AND VARIABLE STAR CLASSIFICATION

Авторы

  • A. Serebryanskiy Fesenkov Astrophysical Institute, Almaty, Kazakhstan
  • G. Aimanova Fesenkov Astrophysical Institute, Almaty, Kazakhstan
  • L. Kondat’eva Fesenkov Astrophysical Institute, Almaty, Kazakhstan
  • Ch. Omarov Fesenkov Astrophysical Institute, Almaty, Kazakhstan

Ключевые слова:

methods: light curve analysis, photometry; stars: variable stars.

Аннотация

We present the first results of the light curve analysis of variable stars identified in Tien-Shan survey
conducted on Tien-Shan Observatory (TSO) using Zeiss-1000 telescope. Here we report on 33 high amplitude
variable stars among which 31 is previously uncatalogued variables. Using data from the StarHorse catalog, as well
as results from the MIST project, Color-Magnitude Diagram and appropriate evolutionary tracks were constructed
for each field and individual variable star, corresponding to the star's mass and metallicity. For two objects, we
performed spectral observations on the Zeiss-1000 "Zapadny" telescope using a slit spectrograph. The obtained
spectra were compared with synthesized spectra. The preliminary identification of variability type of each star is
based on parameters of variability (amplitudes and periods) determined from periodograms analysis, evolution stage
based on evolutionary track on Color-Magnitude Diagram and, for some targets, on spectral information.

Загрузки

Опубликован

2020-06-08

Как цитировать

Serebryanskiy, A., Aimanova, G., Kondat’eva, L., & Omarov, C. (2020). FIRST RESULTS FROM TIEN-SHAN SURVEY TO SEARCH FOR VARIABLE STARS: LIGHTCURVE ANALYSIS AND VARIABLE STAR CLASSIFICATION. Известия НАН РК. Серия физико-математическая, (3), 81–91. извлечено от https://journals.nauka-nanrk.kz/physics-mathematics/article/view/465

Выпуск

№ 3 (2020): Известия НАН РК. Серия физико-математическая

Раздел

Статьи