jianjie

中国天文学会学术期刊

天文学进展

PROGRESS IN ASTRONOMY

　

大质量恒星演化研究

田　斌¹，邓李才¹，熊大闰²
(1. 中国科学院　国家天文台，北京 100012；2. 中国科学院　紫金山天文台，南京 210008)

摘要

由于高光度和高质量损失率等特性，大质量恒星在星系形成和演化等现代天体物理学的研究中扮演着重要的角色。自上世纪中叶以来，恒星物理研究揭示了大质量恒星内部结构和演化的主要特性，并且构造了一些大质量恒星的演化模型。然而，近年来对大质量恒星的观测表明，已有的这些理论演化模型与观测结果之间存在着严重的分歧。在主导大质量恒星演化最主要因素(即质量损失、内部对流等问题)的处理上，现有的理论有很大的缺陷。综述了目前对上述这些问题的研究现状，并探讨了今后的研究方向。

　

Progress in Study on the Evolution of Massive Stars

TIAN Bin ¹， DENG Li-cai ¹， XIONG Da-run ²
(1. National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China;
2. Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, China)

Abstract

Due to their high luminosity and high mass-loss rates, massive stars are playing an important role in the studies of modern astrophysics, such as the formation and the evolution of galaxies. Since the middle of the twentieth century, we have been cognizant of the main characters of the structure and evolution of massive stars approximately and some evolution models have been constructed. However, in recent years, some observations on massive stars indicate that there are serious discrepancies between observations and theoretical models. These discrepancies show us many defects in present theoretical models dealing some leading factors in the evolution of massive stars, such as mass loss and convection. Current research of these problems is reviewed and future perspectives are proposed in this paper.

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