奇怪的恒星脉动
发布时间:2018-01-06 20:07
本文关键词:奇怪的恒星脉动 出处:《物理》2015年04期 论文类型:期刊论文
更多相关文章: 恒星脉动 混沌吸引子 分形结构 初值敏感性 太空望远镜 开普勒 夏威夷大学 白蓝 时间间隔 分形特征
【摘要】:正英国的海岸线具有分形结构:将海岸线放大或缩小后,其崎岖程度看起来不变。最近物理学家声称,从某些白蓝恒星的脉动过程中发现了呈现时间(而非空间)结构的分形特征。据夏威夷大学John Lindner及其同事们分析,这些恒星可能是至今在自然界中发现的首例系统,表现出研究混沌的理论家们所言"奇异非混沌吸引子"的行为;这类系统具有分形结构,但不具备混沌系统(如气象)那样的初值敏感性。依据开普勒太空望远镜采集的数据,作者绘制了恒星KIC 5520878的亮度在4年内的改变,时间间隔约半小时。有若干原
[Abstract]:The coastline is the UK has a fractal structure: the coastline to enlarge or shrink after the bumps seem unchanged. Physicists have recently claimed that some white and blue stars from the fluctuation process have been found in the present time (and space) fractal structure. According to the analysis of John Lindner of University of Hawaii and colleagues, these stars may be the first the system has been found in nature, they exhibit chaos theorists study the words "strange nonchaotic attractors" behavior; this kind of system is a fractal structure, but does not have the chaotic systems (such as weather) as initial value sensitivity. According to the Kepler Space Telescope data, the author draws the star KIC 5520878 in brightness 4 years of change, the time interval for about half an hour. There are a number of original
【作者单位】: 北京大学;
【分类号】:P152
【正文快照】: 英国的海岸线具有分形结构:将海岸线放大或缩小后,其崎岖程度看起来不变。最近物理学家声称,从某些白蓝恒星的脉动过程中发现了呈现时间(而非空间)结构的分形特征。据夏威夷大学John Lindner及其同事们分析,这些恒星可能是至今在自然界中发现的首例系统,表现出研究混沌的理论,
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