Quasars are a class type of the most characteristics in active galactic nuclei (AGN). The colorful observation and extreme physical characteristics reflects that the structure and physical process of quasars are very complex. The study of central black hole accretion and jets of Fermi quasars will solve the major problems of the structure, evolution, energy radiation mechanism and the formation of jets, transmission and acceleration for Fermi quasars, and have great significance to understand the nature of accretion and jets of Fermi quasars. This project combines the observational and theoretical to research the central black hole mass, accretion and jets of Fermi quasars. By spectral data and optical variability to calculate black hole mass, and analyze the difference between the multi-band observation data of optical variability and the central black hole, jets and accretion for Fermi selected quasars, the peak time delay between radiation optical variability of each peak, contrast observation value and theoretical value of the delay timescale between the optical variability in each band. Using multiband observed data to analyze the discussion of optical variability and accretion theory model, validate the model of “black hole +accretion disks + jet", and limit some parameters, such as the central black hole mass, producing area of disturbance on accretion disks, etc. From some physical parameters to find Eddington accretion and intrinsic bolometric luminosity (Lbol), core-dominance parameters are the physical parameters of driving evolution of AGN. Analyze the relationship between variability timescale at multiband, accretion and jets. Use the statistical analysis of the optical variability at multiband to study radiation structure and mechanism in jets. And estimate the physical parameter of radiation region, study the radiation process in jets.
费米(Fermi)类星体中心黑洞的吸积与喷流研究, 将解决类星体的结构、演化、能源辐射机制和喷流的产生、传播、加速等重大难题,对理解费米(Fermi)类星体吸积与喷流的本质具有十分重要的意义。本项目将观测和理论相结合研究费米(Fermi)类星体的中心黑洞质量、吸积与喷流。分析费米(Fermi)选类星体多波段光变观测数据与中心黑洞质量、喷流、吸积差异, 各峰值辐射光变之间的时间延迟,对比各波段光变之间延迟时标的观测值与理论值,用多波段光变观测数据做光变分析与吸积的理论模型探讨,验证“黑洞+吸积盘+喷流”模型,并限制一些参数,如中心黑洞质量、吸积盘上扰动的产生区域等。拟从众多的物理参数中,找到Eddington 吸积率﹑核优参数等为驱动 AGN 演化的物理参数。分析多波段光变时标、吸积、喷流之间的相互关系. 用统计分析方法研究喷流中的辐射结构和机制.估算辐射区的物理参数,研究喷流的辐射过程.
费米(Fermi)类星体中心黑洞的吸积与喷流研究,对理解费米(Fermi)类星体吸积与喷流的本质具有十分重要的意义。本项目观测和理论相结合研究了费米(Fermi)类星体的中心黑洞质量、吸积与喷流,分析费米(Fermi)选类星体多波段光变观测数据与中心黑洞质量、喷流、吸积差异, 各峰值辐射光变之间的时间延迟,对比各波段光变之间延迟时标的观测值与理论值,用多波段光变观测数据做光变分析与吸积的理论模型探讨,验证“黑洞+吸积盘+喷流”模型,研究工作获得若干重要结果,在国内外学术刊物发表论文13篇,其中SCI收录论文共计4篇。从众多的物理参数中,找到Eddington 吸积率﹑核优参数等为驱动 AGN 演化的物理参数,分析多波段光变时标、吸积、喷流之间的相互关系, 用统计分析方法研究喷流中的辐射结构和机制.估算辐射区的物理参数,研究喷流的辐射过程, 并限制一些参数,如中心黑洞质量、吸积盘上扰动的产生区域等. 研究工作获得国内外同行广泛关注,获得多项省级以上奖励。
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数据更新时间:2023-05-31
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