A photometric study of two neglected eclipsing binaries

作     者：V.Kudak M.Fedurco V.Perig S.Parimucha V.Kudak;M.Fedurco;V.Perig;(S).Parimucha

作者机构：Laboratory of Space ResearchesUzhhorod National UniversityUzhhorodDaleka Str.2A88000Ukraine Institute of PhysicsFaculty of ScienceUniversity of P.J.SafarikKosicePark Angelinum 904001Slovakia 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2021年第21卷第7期

页      面：192-198页

核心收录：

学科分类：0709[理学-地质学] 07[理学] 0708[理学-地球物理学] 070401[理学-天体物理] 0825[工学-航空宇航科学与技术] 0704[理学-天文学] 

基　　金：supported by national grant 0119U100236 by the Slovak Research and Development Agency under contract No.APVV-15-0458 supported by the internal grant No.VVGS-PF-2019-1392 of the Faculty of Science,P.J.Safarik University in Kosice 

主　　题：binaries:close binaries:eclipsing stars:individual(V1321 Cyg CR Tau) 

摘      要：We present the first BVR photometry,period variation and photometric light curve analysis of two poorly studied eclipsing binaries,V1321 Cyg and CR *** were carried out from November 2017 to January 2020 at the observatory of Uzhhorod National *** variations were studied using all available early published as well as our minima *** used the newly developed ELIS a code for the light curve analysis and determination of photometric parameters for both *** found that V1321 Cyg is a close detached eclipsing system with a low photometric mass ratio of q=0.28 which suggests that the binary is a post-mass transfer *** significant period changes in this system are *** Tau is,on the other hand,a semi-detached system where the secondary component almost fills its Roche *** detected a long-term period increase at a rate of 1.49 × 10^(-7) d yr^(-1),which supports mass transfer from the lower mass secondary component to the more massive primary.