超高速星搜寻研究进展

发布时间：2018-03-06 04:03

本文选题：超高速星　切入点：分光巡天　出处：《天文学进展》2012年04期 　论文类型：期刊论文

【摘要】：超高速星是一类能够从银河系逃逸的恒星,它们是银心存在超大质量黑洞的有力证据,也是研究银河系晕的形状、银河系引力势模型以及银心初始质量函数等问题的有力工具。首先介绍了最早发现的3颗早型大质量超高速星,其次介绍了海量测光和光谱数据中早型大质量超高速星、晚型小质量超高速星以及处于恒星演化晚期的sdB型超高速星的系统搜寻及起源研究。
[Abstract]:Hypervelocity stars are a class of stars that can escape from the Milky way. They are strong evidence of the existence of supermassive black holes in the center of silver. They are also a study of the shape of the Milky way halo. The gravitational potential model of the Milky way Galaxy and the initial mass function of the center of silver are used as force tools. First, three early massive hypervelocity stars with large mass are introduced, then the massive photometry and spectral data of the early type of large mass superhigh speed stars are introduced. The systematic search and origin study of late small mass hypervelocity stars and sdB type hypervelocity stars in the late stage of stellar evolution.
【作者单位】：中国科学院光学天文重点实验室国家天文台;中国科学院研究生院;
【基金】：国家自然科学基金(10821061,10973021)
【分类号】：P152

【共引文献】