星系中轴子暗物质分布的研究  

Study on Distribution for Axion Dark Matter in Galaxies

作　　者：肖斗玉[1] 颜骏[1] 李宝霖 田红金[1] 

机构地区：[1]四川师范大学物理与电子工程学院,四川成都610066

出　　处：《四川师范大学学报（自然科学版）》2014年第1期108-114,共7页Journal of Sichuan Normal University（Natural Science）

基　　金：四川省教育厅自然科学重点基金(11ZA100)资助项目

摘　　要：通过测量星云旋转速度与其到星系盘中心的距离的关系,发现实际的观测结果与牛顿的引力理论相矛盾,为了解释这一现象,假设星系中存在轴子暗物质,而轴子玻色子在低温下可产生凝聚.首先找到轴子的宏观波函数,通过这一波函数得出星系晕中轴子暗物质的质量,再根据牛顿引力理论推导出星云的速度与距离关系,结果发现得出的理论计算与实际观测在定性上比较符合.The actual observation is conflicting to the Newton＇ s theory of gravitation by measuring the relation of the rotation veloc- ity of nebulas and the distance from the center of the galactic disk. The existence of axion dark matter in galaxies is assumed to explain this phenomenon, and the axion boson can produce condensation at low temperature. First, the macroscopical wave functions of the ax- ion are found in this investigation, and the mass of axion in the galaxy halo can be obtained via the macroscopical wave functions. Then the relation of the rotation velocity of nebulas and the distance is derived via the Newton＇ s theory of gravitation, and the result shows that the theoretical calculation qualitatively conforms to the actual observation.

关 键 词：暗物质 轴子 GP方程 玻色凝聚 

分 类 号：O412.1[理学—理论物理]