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arXiv 0904.0202astro-ph.SRphysics.space-ph
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行星际磁场中的底:根据1976-2000年期间太阳风中ICME观测的相对持续时间的估计

The floor in the interplanetary magnetic field: Estimation on the basis of relative duration of ICME observations in solar wind during 1976-2000

Yu. I. Yermolaev, I. G. Lodkina, N. S. Nikolaeva, M. Yu. Yermolaev

摘要:

为了测量行星际磁场的底和估算太阳的时不变开放磁通量,需要知道太阳的一部分磁场被日冕物质抛射带走。与以前的论文相比,我们没有使用全球太阳参数:我们确定了1976-2000年间隔的不同大尺度类型的太阳风,获得了行星际日冕物质抛射(ICME)的一部分,并计算了行星际磁场B的大小平均超过2卡林顿旋转。磁场的下限估计为未观测到ICME时太阳活动周期极小期的B值,计算值为4,65 \pm 6,0 nT。得到的值是在一个很好的协议与以前的结果。

英文摘要:

To measure the floor in interplanetary magnetic field and estimate the time- invariant open magnetic flux of Sun, it is necessary to know a part of magnetic field of Sun carried away by CMEs. In contrast with previous papers, we did not use global solar parameters: we identified different large-scale types of solar wind for 1976-2000 interval, obtained a fraction of interplanetary CMEs (ICMEs) and calculated magnitude of interplanetary magnetic field B averaged over 2 Carrington rotations. The floor of magnetic field is estimated as B value at solar cycle minimum when the ICMEs were not observed and it was calculated to be 4,65 \pm 6,0 nT. Obtained value is in a good agreement with previous results.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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