Rotation of the large-scale solar magnetic fields in the equatorial region

被引：3
|
作者：
Latushko, S
机构：
[1] Institute of Solar-Terrestrial Physics, 664033 Irkutsk
来源：
SOLAR PHYSICS | 1996年 / 166卷 / 02期
关键词：
D O I：
10.1007/BF00149398
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A study is made of the rotation of large-scale magnetic fields using the synoptic maps from the Kitt Peak National Observatory for the time interval 1976-1985. The auto-correlation method and the mass-centers method of magnetic structures was applied to infer mean differential rotation profiles and rotation profiles separately for each magnetic field polarity. It has been found that in both hemispheres the leading polarity rotates faster than the following polarity at all latitudes by about 0.04 degrees day(-1). The maximum rotation rate of the leading polarity is reached at about 6 degrees latitude. In the mean profile for both polarities, this brings about two angular velocity maxima at 6 degrees latitudes in both hemispheres. Such a profile appears as to have a 'dimple' on the equator.
引用
收藏
页码：261 / 266
页数：6
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