天文学进展2017,Vol.35Issue(2):175-189,15.DOI:10.3969/j.issn.1000-8349.2017.02.02
太阳邻域晕流的研究进展
Research Progresses of Halo Streams in the Solar Neighborhood
摘要
Abstract
When stellar streams from the halo of the Milky Way pass by the solar neighbor-hood, they are likely to be detected. They still keep some information of their progenitor.Thus, the investigation of halo streams in the solar neighborhood is very important for the understanding of the formation and evolution of our Milky Way. In this paper, we briefly reviewed researches on halo streams in the solar neighborhood, introduced how to detect halo streams and identify their member stars. A list of stellar streams found recently in the solar vicinity is tabled in this paper. Then, the progresses in observing members of halo streams and investigating their origin are summarized. Next, we introduced how to analyse stellar streams with numerical simulation and chemical abundance. It is proved that kinematics with chemical abundance pattern together will deduce the reliable origin of a stream. In the end, we discussed about feasible scientific goals and the prospect of studying halo streams in the solar neighborhood with LAMOST and GAIA.关键词
恒星星流/晕流/元素丰度Key words
stellar streams/halo streams/abundances分类
天文与地球科学引用本文复制引用
梁熙龙,赵景昆,陈玉琴,赵刚..太阳邻域晕流的研究进展[J].天文学进展,2017,35(2):175-189,15.基金项目
国家自然科学基金(U1431106, 11390371, 11625313, 11233004) (U1431106, 11390371, 11625313, 11233004)
973项目(2014CB845701/03) (2014CB845701/03)