太陽黑子的世紀周期以及太陽較差自轉(zhuǎn)的研究
[Abstract]:In this paper, two important problems in the sun physics are studied, one is the long period of the solar activity and the other is the poor rotation of the sun. There is a close link between the two issues. The solar activity cycle has been studied for more than 150 years The sunspot is the most important symbol of the solar activity, and other activities are closely related to the sunspots. The solar activity has an extremely complex periodicity, in which the 11-year cycle of the sunspot is an undisputed view. With the continuous enrichment of the observation data and the improvement of the analytical method, the period of the sunspot has also been widely accepted universal recognition. However, the change in the length of the twenty-first century, and how the period of the twenty-first century has affected the change in the 11-year cycle, does not It is sufficient. We have used more than 300 years of average annual sunspot number, and further study the world of sunspot by means of Fourier analysis and wavelet analysis. The results not only confirm some of the results obtained by the predecessors, but also the length of the period over the course of the more than 300 years The period of the twenty-first century has a modulating effect on the 11-year period, compared with the cycle of the solar activity in the period of the first-century period. The weak week. We found the six solar weeks in the mid-century period in the 300 years, and demonstrated that the 24-week and the future 25-week period from 2008 should also be a century-old. At the end of the valley, the 24,25-week, and great-year activities were predicted by the similarity of the level of activity in the valley. The level of motion. The sun is a gas ball consisting of a plasma, and its self-rotation speed is presented as a function of latitude and depth. In this paper, we first give the longitudinal time map of the positive field, the negative field and the total field of the solar optical ball through the comprehensive magnetic chart of the magnetic field of the solar optical ball, and then the slope of some magnetic structures on the longitude time chart is used to find out the different polarities of the different latitudes of the surface of the sun. The rotation speed of the magnetic field is also studied, and the difference of the rotation speed of the positive field and the negative field is also studied. The variation law of the latitude is the most important dynamic foundation of the theory of the sun-generator, and the non-uniform rotation of the sun causes the polar field of the sun to be converted into a ring-directed field, and the winding of the magnetic field The magnetic field inside the sun is gradually enhanced, collecting the magnetic flow tube of the strong magnetic field to emerge. The sun spot is formed by the light-out ball. The magnetic field of the solar periodic change is the intrinsic reason of the solar periodic activity. The study of the change of the rotation speed of the magnetic field of the solar optical ball is beneficial to the disclosure. The physical nature of the periodicity of the yang activity. The main results of the research work are as follows:1. By using the data of the average annual sunspot number of the 1700-2008, the method of Fourier analysis and wavelet analysis is used to confirm that the number of the annual sunspots is significant. A period of 11 years and a period of about 100 years, and the smooth value of the number of sunspots in the very small year and the year of each week of activity for each solar week. The sum of the number of sunspots is about a century of a century. In addition, the change of the length of the century is also studied by the wavelet analysis, and we estimate the period of the first century. the change in length is a longer-scale activity of the sun. With the change in the length of the twenty-first century over the course of more than 300 years, we speculate that the 24,25 solar cycle is in the valley of the twenty-first period, so the number of sunspots in the 24,25 and the very small years It's very low, similar to the first-fourth,-3,5, and 6-week history of history. By averaging the valley during the different century, we predict that the maximum number of sunspots in the 24th and twenty-five weeks is 63. .6-21.1, the number of sunspots in the very small year is 2.2%. The prediction value of the number of sunspots in the 24-week minimum compared with the actual annual sunspot number in 2008, the number of sunspots is in the range of 1.3, the longitude time of different polar magnetic fields with different latitude is first constructed by using the combined magnetic chart of the 21st-23 week, and then, according to the longitude and time, The average rotation speed of the positive and negative magnetic fields and the total magnetic field is calculated in the figures 21-23. We find that the rotation speed of the leading polarity is the leading polarity at each active cycle and each hemisphere And the rotation speed of the total magnetic field is between the two. It can be seen that at the 22nd week, the rotation speed has a distinct asymmetry in the different hemisphere. 4. The difference of the rotation speed of the leading and trailing polarity magnetic fields in the 21-23 week is calculated. We find that this difference varies slightly with the latitude, and this difference is very small in the vicinity of the equator and between 5 擄 and 20 擄, reaching 0. At about 0.05 deg/ day, this difference is gradually reduced after more than 20 擄. This is compared with Gilman and Howard's in 1985 sunspots. The result is that the difference of the rotation speed of the leading and the back sunspots does not change with the latitude. The period of the study is also short, and the sample is too small for statistical work to affect the accuracy of the forecast results.
【學位授予單位】:山東師范大學
【學位級別】:碩士
【學位授予年份】:2010
【分類號】:P182.9
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