本文關(guān)鍵詞：活動星系核黑洞質(zhì)量、偏振及噴流特性研究　出處：《云南師范大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 活動星系核 偏振 噴流 吸積 黑洞質(zhì)量

【摘要】：本文對費米耀變體偏振特性和聚束效應(yīng)的關(guān)系,活動星系核中心黑洞質(zhì)量、噴流和吸積的關(guān)系,平譜射電類星體(FSRQs)和FRI型射電星系,蝎虎天體(BL Lacs)和FRII型射電星系的統(tǒng)一模型等一系列問題進行了主要的研究。首先,簡單介紹了活動星系核的一些基本特性,例如活動星系核的分類和統(tǒng)一模型;活動星系核中心黑洞質(zhì)量的計算方法;活動星系核的偏振、噴流和吸積;費米伽馬射線空間望遠鏡。隨后,通過費米伽馬射線望遠鏡探測的耀變體樣本,我們研究了費米耀變體(FBlazars)和非費米耀變體(NFBlazars)的偏振和聚束效應(yīng)的特性,得到如下的結(jié)論:(1)費米耀變體具有高的核主導(dǎo)參數(shù)和偏振比非費米耀變體;(2)費米FSRQs的核主導(dǎo)參數(shù)和f(聚束光度比上非聚束光度)比費米BL Lacs的低;(3)在偏振和多普勒因子的關(guān)系圖表中,費米FSRQs有,費米BL Lacs有。上述結(jié)果表明:偏振和聚束效應(yīng)之間有關(guān)系;聚束效應(yīng)和噴流模型導(dǎo)致了費米FSRQs和費米BL Lacs的偏振和核主導(dǎo)參數(shù)的不同。此外,我們研究了費米耀變體和射電星系的噴流功率與黑洞質(zhì)量和吸積率之間的關(guān)系。得到如下結(jié)論:(1)FSRQs和FRII型高激發(fā)射電星系(HEG)的噴流功率依靠于黑洞質(zhì)量,這個結(jié)果表明FSRQs和FRII-HEG在輻射壓主導(dǎo)的區(qū)域。BL Lacs和FRI型低激發(fā)射電星系(LEG)的噴流功率依靠于吸積率,這個結(jié)果表明BL Lacs和FRI-LEG在氣體壓主導(dǎo)的區(qū)域;(2)大多數(shù)的吸積模式是不同的。最后,我們研究了費米和非費米耀變體(Blazars)的噴流功率和吸積之間的關(guān)系。結(jié)果如下:(1)費米和非費米耀變體間的紅移,黑洞質(zhì)量和寬線光度的分布有顯著性差異;(2)和非費米耀變體比,費米耀變體有高的核主導(dǎo)參數(shù),這個結(jié)果表明費米耀變體有強的聚束效應(yīng);(3)費米和非費米耀變體的噴流功率和寬線光度之間的強相關(guān)性表明噴流和吸積之間有緊密的聯(lián)系;(4)費米和非費米耀變體的吸積和黑洞質(zhì)量可能有不同的貢獻對它們的噴流功率。
[Abstract]:This paper deals with the relationship between the polarization characteristics of Fermiyao variant and the bunching effect, the mass of the black hole at the center of the active galaxy nucleus, the relationship between jet and accretion, the flat-spectrum radio quasar FSRQs) and the FRI type radio galaxy. BL-Lacs) and the unified model of FRII radio galaxies are studied in this paper. Firstly, some basic characteristics of AGNs are briefly introduced. For example, the classification and unified model of active galactic nuclei; A method for calculating the mass of a black hole at the center of an active galaxy nucleus; Polarization, jet and accretion of active galactic nuclei; Fermi Gamma-ray Space Telescope. Subsequently, a sample of a brilliant variety detected through the Fermi Gamma-Ray Telescope. The polarization and bunching effects of FBlazars and NFBlazars) have been studied. The following conclusions are obtained: 1) Fermiyao variant has high nuclear dominant parameter and polarization ratio. (2) the nuclear dominant parameters of Fermi FSRQs are lower than those of Fermi BL Lacs. (3) in the diagram of the relationship between polarization and Doppler factor, Fermi FSRQs and Fermi BL Lacs have. The above results show that there is a relationship between polarization and bunching effect. The spotlight effect and jet model lead to the difference of polarization and nuclear dominant parameters between Fermi FSRQs and Fermi BL Lacs. We have studied the relationship between jet power of Fermiyao variants and radio galaxies and black hole mass and accretion rate. The following conclusions are obtained: 1 FSRQs and FRII type highly excited radio galaxies (HEGs). The power of the jet depends on the mass of the black hole. The results show that the jet power of FSRQs and FRII-HEG in the radiation-pressure-dominated region. BL Lacs and FRI type low excited radio galaxy (LEG) depends on the accretion rate. The results show that BL Lacs and FRI-LEG are in the region dominated by gas pressure. Most accretion patterns are different. Finally. We have studied the relationship between jet power and accretion of Fermi and non-Fermiyao variants. The results are as follows: 1) Redshift between Fermi and non-Fermiyao variants. The distribution of black hole mass and wide-line luminosity is significantly different. Compared with the non-Fermiyao variant, the Fermiyao variant has a high nuclear dominant parameter, which indicates that the Fermiyao variant has a strong bunching effect. 3) the strong correlation between jet power and wide line luminosity of Fermi and non-Fermiyao variants indicates that there is a close relationship between jet and accretion. 4) the accretion and black hole mass of Fermi and non-Fermiyao variants may have different contributions to their jet power.
【學(xué)位授予單位】：云南師范大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：P145.8;P157.6

【參考文獻】

相關(guān)期刊論文 前4條

1 Luigi Foschini;;Accretion and jet power in active galactic nuclei[J];Research in Astronomy and Astrophysics;2011年11期

2 ;Brightness temperature for 166 radio sources[J];Research in Astronomy and Astrophysics;2009年07期

3 ;The relation between black hole masses and Lorentz factors of the jet components in blazars[J];Research in Astronomy and Astrophysics;2009年03期

4 ;The debeamed luminosity, sychrotron peak frequency and black hole mass of BL Lac objects[J];Research in Astronomy and Astrophysics;2009年02期

，

本文編號：1374827