摘要
通过收集数据,用标准α盘模型法、短时标光变法、连续波混响滞后法、微引力透镜法分析了活动星系核吸积盘辐射区半径,并对4种方法进行分析讨论。结果表明:(1)将耀变体和类星体参数比较,发现两个子类的中心黑洞质量、光度和吸积盘辐射区半径都没有明显差别。选择高光度源进行研究,出现了两个子类以上参数无明显区别的情况;(2)短时标光变法得到的吸积盘辐射区半径比和黑洞质量没有明显的相关性;(3)连续波混响滞后法得到的吸积盘辐射区半径比对黑洞质量的依赖性高于标准α盘模型法,对于无法确定中心黑洞质量的源,可以利用连续波混响滞后法得到吸积盘辐射区半径;(4)微引力透镜法得到的吸积盘辐射区半径比和黑洞质量没有明显的相关性,且该方法只适用于存在微引力透镜效应的类星体;(5)这些方法从观测上证明了吸积盘辐射区半径与黑洞质量存在相关性,验证了标准模型成立。为进一步在观测上寻找这4种方法所需要的源提供了理论指导,对活动星系核的吸积盘辐射区半径研究有重要意义。
We analyzed the radius of the radiation area of AGN accretion disk by standardαdisk method,short time optical variation method,continuum reverberation lag method and gravitational microlensing method.The results show that:(1)there is no significant difference in the M BH,the luminosity or the radius of the radiation area of the accretion disk between the blazars and the quasars.This paper selects the high luminosity source for research,so there is no obvious difference among parameters of the subcategory;(2)The radius ratio of the radiation area of AGN accretion disk obtained by the short time optical variability has no dependence on the M BH;(3)The radius ratio of radiation area of AGN accretion disk obtained by the continuous reverberation lag method is more dependent on the black hole than that obtained by standardαdisk model method.For the source that cannot determine the M BH,the radius of radiation area of AGN accretion disk can be obtained by the continuous reverberation lag method;(4)There is no obvious correlation between the radius of radiation area of AGN accretion disk by the gravitational microlensing method and the M BH,and the method is only applicable to quasars with micro-gravitational lens effects;(5)These methods prove that the radius of the radiation area of AGN accretion disk is directly proportional to the mass of the black hole,which verifies that the standard model is established.It provides theoretical guidance for further exploration of the sources needed for these four methods,which is of significant value for the study on the radius of the radiation area of AGN accretion disk.
作者
李富婷
张雄
张皓晶
余莲
徐小林
任国伟
吴月承
晏培琳
Li Futing;Zhang Xiong;Zhang Haojing;Yu Lian;Xu Xiaolin;Ren Guowei;Wu Yuecheng;Yan Peilin(College of Physics and Electronics,Yunnan Normal University,Kunming 650500,China)
出处
《天文研究与技术》
CSCD
2019年第4期381-389,共9页
Astronomical Research & Technology
基金
国家自然科学天文联合基金(U1231203)
国家自然科学基金(11663009)
云南省高校高能天体物理重点实验室资助
关键词
吸积盘辐射区半径
黑洞质量
吸积盘
短时标光变
连续波混响滞后
微引力透镜
Radius of the accretion disk radiation area
Black hole mass
Accretion disks
Short time optical variability
Continuum reverberation lag
Gravitational microlensing
