ZTF J060524.16+244923.4的双星解轨和物理参数研究  

Orbital and Physical Parameters of Eclipsing Binary SystemZTF J 060524.16+244923.4

作　　者：代敏 王坤[1] 曹星梅 陈涛[1] DAI Min;WANG Kun;CAO Xing-mei;CHEN Tao(School of Physics and Astronomy,China West Normal University,Nanchong Sichuan 637009,China)

机构地区：[1]西华师范大学物理与天文学院,四川南充637009

出　　处：《西华师范大学学报（自然科学版）》2022年第2期183-188,共6页Journal of China West Normal University(Natural Sciences)

基　　金：四川省科技计划资助项目(2020YFSY0034)。

摘　　要：ZTF J060524.16+244923.4是一颗主星为F型的半相接食双星系统。基于ZTF的测光数据和LAMOST的光谱数据,获得了目标系统的时序光变曲线、主星的大气参数和视向速度曲线。然后使用食双星解轨分析程序PHOEBE(PHysics Of Eclipsing BinariEs)对该系统的光变曲线和视向速度曲线同时进行分析,发现该双星系统是一个次星充满洛希瓣的半相接双星系统,其主要物理参数如下:双星系统的质量比q=0.45^(+0.05)_(-0.05)(M_(2)/M_(1)),主星的质量M_(1)=3.1^(+0.8)_(-0.8) M⊙、半径R^(1)=2.63^(+0.22)_(-0.24) R⊙、有效温度T_(1)≈6679.5 K、光度L_(1)=12^(+2_)_(-2) L⊙,次星的质量M_(2)=1.4^(+0.2)_(-0.2) M⊙、半径R^(2)=2.49^(+0.13)_(-0.14) R⊙、有效温度T_(2)=5924^(+51)_(-65) K、光度L_(2)=8^(+1)_(-1) L⊙。最后根据所获得的物理参数,对该双星系统接下来的演化进行了讨论。ZTF J060524.16+244923.4 is a semidetached eclipsing binary system with F-type primary star.The time-series light curves,atmosphere parameters and the radial velocity of the primary star are obtained on the basis of the photometric data from ZTF(Zwicky Transient Telescope)and the spectrum data from LAMOST(Large Sky Area Multi-Object Fiber Spectroscopic Telescope).PHOEBE(PHysics Of Eclipsing BinariEs)software is employed to analyze the light curve and radial velocity curve of this eclipsing binary system.It is found that the eclipsing binary system is a semidetached binary system with secondary stars filled with Roche lobe.The main physical parameters are as follows:the mass ratio of the binary system is q=0.45^(+0.05)_(-0.05) M_(2)/M_(1);the primary star has a mass of M_(1)=3.1^(+0.8)_(-0.8) M⊙,a radius of R^(1)=2.63^(+0.22)_(-0.24) R⊙,an effective temperature of T_(1)≈6679.5 K,and a luminosity of L_(1)=12^(+2_)_(-2) L⊙;the secondary star has a mass of M_(2)=1.4^(+0.2)_(-0.2) M⊙,a radius of R^(2)=2.49^(+0.13)_(-0.14) R⊙,an effective temperature of T_(2)=5924^(+51)_(-65) K,and a luminosity of L_(2)=8^(+1)_(-1) L⊙.Finally,the next evolution of the binary system is discussed in accordance with the obtained physical parameters.

关 键 词：食双星 光变曲线 PHOEBE 解轨分析 视向速度 

分 类 号：P141[天文地球—天体物理]