Study of the period changes in SU Hor – an RR Lyrae type star with the Blazhko effectстатья
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 1 октября 2025 г.
Аннотация:In 2012–2014 we acquired 3965 CCD BV Ic frames for the RR Lyrae type variable SU Hor with the 76-cm telescope of the South African Astronomical Observatory (SAAO) Sutherland and 1-m telescopes of Las Cumbres Observatory Global Telescope network (LCOGT). Our observations confirmed the presence of the Blazhko effect, which we suspected earlier, and allowed us to determine the Blazhko period, PBl = 32.27±0.03 d. We used all available observations to construct the O−C diagram spanning a 134-year long time interval and discovered for the first time the evolutionary period change at a rate of dp/dt = −0.0814 ± 0.0016 s/year.