Long-term V(RI) CCD photometry of pre-main-sequence stars in the association Cepheus OB3  

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作  者:Sunay Ibryamov Gabriela Zidarova Evgeni Semkov Stoyanka Peneva 

机构地区:[1]Department of Physics and Astronomy,University of Shumen,115,Universitetska Str.,9700 Shumen,Bulgaria [2]Institute of Astronomy and National Astronomical Observatory,Bulgarian Academy of Sciences,72,Tsarigradsko Shose Blvd.,1784 Sofia,Bulgaria

出  处:《Research in Astronomy and Astrophysics》2021年第8期91-98,共8页天文和天体物理学研究(英文版)

基  金:partly supported by the National Science Fund of the Ministry of Education and Science of Bulgaria under grant DN 18-10/2017;funds of the project RD-08-125/2021 of the University of Shumen。

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 longterm 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 pre-main-sequence stars located in active star-forming regions.

关 键 词:stars:pre-main sequence stars:variables:T Tauri Herbig Ae/Be techniques:photometric methods:observational data analysis stars:individual 

分 类 号:P152[天文地球—天文学]

 

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