太阳磁学中的近跨年现象
Near-transyear in solar magnetism.
作者信息
Cornélissen G, Otsuka K, Halberg F
机构信息
Halberg Chronobiology Center, University of Minnesota, MMC 8609, 420 Delaware Street SE, Minneapolis, MN 55455, USA.
出版信息
Biomed Pharmacother. 2005 Oct;59 Suppl 1(Suppl 1):S5-9. doi: 10.1016/s0753-3322(05)80002-2.
Daily data on solar magnetism, available from May 1975 to April 2002, were analyzed by linear-nonlinear rhythmometry, with particular focus on the near-transyear, slightly longer than the calendar year. The time structure of solar magnetism is compared to that of solar activity, gauged by Wolf numbers. An about 27-day component corresponding to the solar rotation period, is common to both variables but differs in harmonic content. About 10-year component characterizes solar activity but not solar magnetism. A near-transyear with a period of about 1.05 years is detected in solar magnetism. In solar activity, a near-transyear is also found but its period of about 1.10 years is longer than that characterizing solar magnetism, and it may be paired with an about 0.9-year component to correspond to an about 10-year modulation in amplitude or phase of an about-yearly component.
利用线性 - 非线性节律测量法对1975年5月至2002年4月期间的太阳磁学每日数据进行了分析，特别关注了接近跨年的情况，即略长于日历年。将太阳磁学的时间结构与通过沃尔夫数衡量的太阳活动的时间结构进行了比较。两个变量都存在一个对应太阳自转周期的约27天的分量，但谐波含量不同。约10年的分量表征太阳活动而非太阳磁学。在太阳磁学中检测到一个周期约为1.05年的接近跨年的情况。在太阳活动中也发现了一个接近跨年的情况，但其约1.10年的周期比表征太阳磁学的周期长，并且它可能与一个约0.9年的分量配对，以对应约年度分量在幅度或相位上的约10年调制。
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