کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1768155 | 1020216 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Large-scale solar cycle features of solar photospheric magnetic field
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم فضا و نجوم
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![عکس صفحه اول مقاله: Large-scale solar cycle features of solar photospheric magnetic field Large-scale solar cycle features of solar photospheric magnetic field](/preview/png/1768155.png)
چکیده انگلیسی
It is well accepted that the solar cycle originates from a magnetohydrodynamics dynamo deep inside the Sun. Many dynamo models have long been proposed based on a lot of observational constraints. In this paper, using 342 NSO/Kitt Peak solar synoptic charts we study the solar cycle phases in different solar latitudinal zones to set further constraints. Our results can be summarized as follows: (1) The variability of solar polar regions' area has a correlation with total unsigned magnetic flux in advance of 5Â years. (2) The high-latitude region mainly appears unipolar in the whole solar cycle and its flux peak time lags sunspot cycle for 3Â years. (3) For the activity belt, it is not surprised that its phase be the same as sunspot's. (4) The flux peak time of the low-latitude region shifts forward with an average gradient of 32.2Â day/deg. These typical characteristics may provide some hints for constructing an actual solar dynamo.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advances in Space Research - Volume 39, Issue 11, 2007, Pages 1749-1752
Journal: Advances in Space Research - Volume 39, Issue 11, 2007, Pages 1749-1752
نویسندگان
W.B. Song,