活动星系核吸积盘辐射的研究
发布时间：2019-03-13 17:23
【摘要】：本文主要对活动星系核（AGN）的吸积盘辐射的研究，在标准吸积盘的基础上考虑中心黑洞的类型及其旋转和最小稳定轨道的变化对吸积盘辐射的影响。利用标准吸积盘、双温盘、物质流主导和坡印廷流主导的吸积盘模型对3个源进行的拟合。 第一章，简单介绍了活动星系核的基本概念及特征；活动星系核的产能机制和模型；光学紫外波段的大蓝包及其形成的原因；四种吸积盘各自的优点及不足和其相互之间的比较。 第二章，主要介绍了标准吸积盘的辐射模型和黑洞吸积盘最小稳定轨道半径的演化；考虑相对论作用下的吸积盘辐射模型；不同黑洞类型对吸积盘辐射影响的模型；坡印廷流主导和物质流主导的吸积盘模型。坡印廷流主导和物质流主导的吸积盘的磁场与MHD的张量有关，所以还对MHD吸积盘进行了简单介绍；以及考虑几种影响吸积盘辐射的因素，考虑这些参数变化对吸积盘辐射谱的影响。 第三章，主要是把相关模型用于拟合几个源在光学紫外波段的辐射，，对双温盘模型的辐射中做了一小部分的修改，并比较各个模型得到的黑洞质量、质量吸积率等参数之间的不同。
[Abstract]:This paper mainly studies the radiation of the accretion disk of the active galactic nuclei (AGN), and on the basis of the standard accretion disk, the influence of the type of the central black hole and the change of the rotation and the minimum stable orbit on the radiation of the accretion disk is considered. The fitting of three sources was carried out using a standard accretion disk, a double-temperature disk, a material flow-leading and a slope-printing-flow-dominated accretion disk model. The first chapter briefly introduces the basic concept and characteristics of the active galactic nuclei, the capacity mechanism and model of the active galactic nuclei, the large blue package of the optical ultraviolet band and the reasons for their formation, the respective advantages and disadvantages of the four kinds of accretion disks and their ratio to each other The second chapter mainly introduces the radiation model of the standard accretion disk and the evolution of the minimum stable orbit radius of the black hole accretion disk, and takes into account the radiation model of the accretion disk under the effect of relativity, and the effect of different black hole types on the radiation of the accretion disk a model of the leading and substance flow dominated by the pottingt flow The disk model is related to the tensor of MHD, which is dominated by the flow-of-slope and substance flow, so the MHD accretion disk is briefly introduced, and several factors which influence the radiation of the accretion disk are considered, and the radiation spectrum of the accretion disk is considered in consideration of the changes of these parameters. In the third chapter, the correlation model is used to fit the radiation of several sources in the optical ultraviolet band, a small part of the radiation of the double-temperature disk model is modified, and the parameters such as the black hole quality and the mass absorption rate of each model are compared.
【学位授予单位】：云南师范大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：P145.8
本文编号：2439603
[Abstract]:This paper mainly studies the radiation of the accretion disk of the active galactic nuclei (AGN), and on the basis of the standard accretion disk, the influence of the type of the central black hole and the change of the rotation and the minimum stable orbit on the radiation of the accretion disk is considered. The fitting of three sources was carried out using a standard accretion disk, a double-temperature disk, a material flow-leading and a slope-printing-flow-dominated accretion disk model. The first chapter briefly introduces the basic concept and characteristics of the active galactic nuclei, the capacity mechanism and model of the active galactic nuclei, the large blue package of the optical ultraviolet band and the reasons for their formation, the respective advantages and disadvantages of the four kinds of accretion disks and their ratio to each other The second chapter mainly introduces the radiation model of the standard accretion disk and the evolution of the minimum stable orbit radius of the black hole accretion disk, and takes into account the radiation model of the accretion disk under the effect of relativity, and the effect of different black hole types on the radiation of the accretion disk a model of the leading and substance flow dominated by the pottingt flow The disk model is related to the tensor of MHD, which is dominated by the flow-of-slope and substance flow, so the MHD accretion disk is briefly introduced, and several factors which influence the radiation of the accretion disk are considered, and the radiation spectrum of the accretion disk is considered in consideration of the changes of these parameters. In the third chapter, the correlation model is used to fit the radiation of several sources in the optical ultraviolet band, a small part of the radiation of the double-temperature disk model is modified, and the parameters such as the black hole quality and the mass absorption rate of each model are compared.
【学位授予单位】：云南师范大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：P145.8
【参考文献】
相关期刊论文 前1条
1 卢炬甫;黑洞吸积盘理论进展[J];天文学进展;2001年03期
本文编号：2439603
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