Blazar的长周期光变分析研究
发布时间：2018-12-12 06:54
【摘要】：Blazar是当今天体物理学研究的前沿，特别理论和观测的研究，进展速度很快。Blazar是特别的星系之一，其上存在着猛烈的活动现象和剧烈的物理过程[1]。研究Blazar的辐射流量，能量来源，对我们研究宇宙具有重要作用研究。研究Blazar的光变能解释活动星系核的运动，中间构造，观测特征，亮温度，理论模型等重要性质。对活动星系核的理论模型研究也有很大作用。 本文主要介绍AGN的分类，，辐射机制，理论模型和光变。然后重点对活动星系核的几种计算长周期的方法进行介绍。比如，结构函数法，DCF法，功率谱，Jurkevich,和小波分析法。首次利用周期4软件对3C446进行周期分析。从文献中我们收集了大量的3C446的有效数据点，获得了其光变曲线，可以从曲线中看出，此天体有剧烈变化，但不能从曲线中看出天体的长周期变化。本文利用Period04软件对天体射电4.8GHz、8GHz、14GHz、22GHz数据进行周期计算，发现其周期为7.4年。并且通过其结果对其黑洞质量和辐射区域进行计算和研究。
[Abstract]:Blazar is the frontier of astrophysics, and the research of special theory and observation is developing rapidly. Blazar is one of the special galaxies, and there are violent phenomena and physical processes on it [1]. The study of the radiation flow and energy source of Blazar plays an important role in our study of the universe. In this paper, we study the phototropic energy of Blazar to explain the motion, intermediate structure, observational characteristics, brightness temperature, theoretical model and other important properties of Agalactic Nuclei (AGNs). The theoretical model of active galactic nuclei is also of great importance. This paper mainly introduces the classification, radiation mechanism, theoretical model and photovariation of AGN. Then, several methods of calculating long period of AGNs are introduced. For example, structural function method, DCF method, power spectrum, Jurkevich, and wavelet analysis. Period 4 software is used to analyze the cycle of 3C446 for the first time. We have collected a large number of effective data points of 3C446 in the literature and obtained the light variation curve. It can be seen from the curve that the object has a sharp change, but the long-period variation of the celestial body can not be seen from the curve. In this paper, Period04 software is used to calculate the periodicity of the celestial radio data of 4.8GHz (4.8GHz) ~ 8GHz ~ 8GHz ~ (14) GHz ~ (14) GHz. It is found that the period is 7.4 years. The mass and radiation region of black hole are calculated and studied by the results.
【学位授予单位】：云南师范大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：P157.7
本文编号：2374134
[Abstract]:Blazar is the frontier of astrophysics, and the research of special theory and observation is developing rapidly. Blazar is one of the special galaxies, and there are violent phenomena and physical processes on it [1]. The study of the radiation flow and energy source of Blazar plays an important role in our study of the universe. In this paper, we study the phototropic energy of Blazar to explain the motion, intermediate structure, observational characteristics, brightness temperature, theoretical model and other important properties of Agalactic Nuclei (AGNs). The theoretical model of active galactic nuclei is also of great importance. This paper mainly introduces the classification, radiation mechanism, theoretical model and photovariation of AGN. Then, several methods of calculating long period of AGNs are introduced. For example, structural function method, DCF method, power spectrum, Jurkevich, and wavelet analysis. Period 4 software is used to analyze the cycle of 3C446 for the first time. We have collected a large number of effective data points of 3C446 in the literature and obtained the light variation curve. It can be seen from the curve that the object has a sharp change, but the long-period variation of the celestial body can not be seen from the curve. In this paper, Period04 software is used to calculate the periodicity of the celestial radio data of 4.8GHz (4.8GHz) ~ 8GHz ~ 8GHz ~ (14) GHz ~ (14) GHz. It is found that the period is 7.4 years. The mass and radiation region of black hole are calculated and studied by the results.
【学位授予单位】：云南师范大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：P157.7
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