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arXiv 2103.13207astro-ph.SR
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仙王座前主序星OB3的长期$V(RI)_{c}$ CCD测光

Long-term $V(RI)_{c}$ CCD photometry of pre-main-sequence stars in the association Cepheus OB3

Sunay Ibryamov, Gabriela Zidarova, Evgeni Semkov, Stoyanka Peneva

摘要:

介绍了2007年2月至2020年11月期间收集的13颗主序前星的光学CCD光度观测结果。这些恒星位于仙王座OB3星协中,在年轻恒星V733仙王座的区域内。光度观测,特别是关于恒星的长期变化,在文献中缺失。我们提出了第一个长期的$V(RI)_{c}$监测他们,涵盖13年。我们的研究结果表明,所有被调查的恒星都表现出很强的光度变化。本论文是我们对位于活跃恒星形成区的PMS星进行光度研究计划的一部分。

英文摘要:

Results from optical CCD photometric observations of 13 pre-main-sequence stars collected during the period from February 2007 to November 2020 are presented. These stars are located in the association Cepheus OB3, in the field of the young star V733 Cephei. Photometric observations, especially concerning the long-term variability of the stars, are missing in the literature. We present the first long-term $V(RI)_{c}$ monitoring for them, that cover 13 years. Results from our study indicate that all of the investigated stars manifest strong photometric variability. The presented paper is a part of our program for the photometric study of PMS stars located in active star-forming regions.

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