论文标题
双胞胎的详细进化模型，以了解新的光谱数据：凸轮，RS ARI和V455 AUR
Detailed Evolutionary Models for Twins in Sight of New Spectral Data: AN Cam, RS Ari, and V455 Aur
论文作者
论文摘要
我们使用其组合的光谱数据和光度计数据介绍了三个黯然失色的双胞胎（$ Q（M_2/M_1）\ SIM $ 1）二进制系统的进化场景。使用准确的\ textIt {Tess}光度数据，RV测量和光谱数据使我们能够计算基本参数，例如质量和半径，高于2％。每个组件的温度和系统的金属性是通过高分辨率光谱获得的。根据我们的频谱分析，cam，rs ari和v455 aur的金属性值分别为\ text {[m/h]} = \，0.00 $ \ pm $ 0.12，0.05 $ \ pm $ 0.08和-0.07 $ \ pm pm $ 0.07。使用每个系统的派生金属性，通过使用\ textsc {mesa}来计算这三个系统的初始轨道参数和详细的进化状态。根据我们的分析，CAM的两个组成部分都通过了末端年龄的主要序列，RS ARI的主要成分处于巨大阶段，而二级成分已经通过了末端年龄的主要序列，最后，V455 AUR的两个组件仍在主要序列上。这三个系统的当前年龄和凸轮，RS ARI和V455 AUR分别为3.0、3.3和1.4 Gyrs，它们将大约开始在400、250和2700 MYR的组件之间转移质量。
We present the evolutionary scenarios for three eclipsing twin ($q(M_2/M_1)\sim$1) binary systems using their combined spectroscopic and photometric data. Using accurate \textit{TESS} photometric data, RV measurements, and spectroscopic data enabled us to calculate fundamental parameters, such as mass and radius, better than 2 percent. The temperature of each component and metallicity of the systems have been obtained via high-resolution spectra. According to our spectral analysis, the metallicity values of AN Cam, RS Ari, and V455 Aur are \text{[M/H]}=\,0.00$\pm$0.12, 0.05$\pm$0.08, and -0.07$\pm$0.07, respectively. Using the derived metallicity for each system, initial orbital parameters and detailed evolutionary status of these three systems are calculated with high precision by using \textsc{mesa}. According to our analysis, both components of AN Cam have passed the terminal age main-sequence, the primary component of RS Ari is in the giant phase while the secondary component has passed the terminal age main-sequence, finally, both components of V455 Aur are still on the main-sequence. The current ages of the three systems AN Cam, RS Ari, and V455 Aur are 3.0, 3.3, and 1.4 Gyrs, respectively, and they will approximately start to transfer mass between components in 400, 250, and 2700 Myrs, respectively.
