Algol型双星的观测研究  

An Observational Study of Algol-Type Binary System

作　　者：张嘉[1] 

机构地区：[1]中国科学院云南天文台,昆明650011

出　　处：《天文学报》2015年第1期91-92,共2页Acta Astronomica Sinica

摘　　要：Algol型双星是双星的一种，其独特的半接结构使它拥有丰富的物理现象，包括严重畸变的充满子星、强磁活动现象，物质转移的各种形式，完全迥异于单星的演化状态和特有的形成历史．本文对双星光变曲线的基础物理做了介绍，同时介绍了历史上的各个模型或程序．展示了各个物理参数对光变曲线的影响，包括倾角、温度、金属丰度、表面重力加速度、第3光、半径、轨道椭率和轨道近点角等．根据已有星表统计了Algol型双星的性质，并对3颗样本星进行了具体的观测和分析，结果如下：The Algol-Type binary systems are a subtype of binary systems. Their unique semidetached structure leads to have abundant physical phenomena, including the dramatically distorted donor star, strong magnetic activities, various ways of mass transfer, the evolution stage quite different from that of single stars, and specific formation tracks. In this paper, we introduce the fundamental physics of light curves, as well as the models or programs used in the past. We show the influence of different parameters on the light curves, including the inclination, temperature, abundance, surface gravity, the third light, radius, orbital eccentricity, and the argument of periastron. Based on the current catalog of Algols, we investigate their statistic characteristics. We observe three Algols and analyze the data in detail. The results are as follows：

关 键 词：双星 l型 观测 光变曲线 重力加速度 物理现象 活动现象 物质转移 

分 类 号：P153[天文地球—天文学]