射电类星体辐射压的研究  

Study of Radiation Pressure For Radio Quasars

作　　者：陈永云[1] 张雄[1] 熊定荣[1] 

机构地区：[1]云南师范大学物理与电子信息学院

出　　处：《云南师范大学学报（自然科学版）》2014年第1期15-20,共6页Journal of Yunnan Normal University:Natural Sciences Edition

基　　金：国家自然科学基金资助项目(111231203);云南省引力理论创新团队及云南省高校高能天体物理创新团队资助项目

摘　　要：收集了20个射电宁静类星体(radio quiet quasars,RQQs)和97个射电噪类星体(radio loud quasars,RLQs)的红移、5 100的单色光度、Hβ发射线宽度、射电噪度、5 GHz射电光学流量密度、热光度.分别计算了考虑辐射压影响和没有考虑辐射压影响的黑洞质量和爱丁顿比,利用总的5GHz射电光学流量密度计算了射电光度.分析了它们之间的相关性,得到如下结论:RQQs考虑辐射压的黑洞质量与射电噪度、5 GHz射电光度、热光度的相关性比RLQs考虑辐射压的黑洞质量和射电噪度、5 GHz射电光度、热光度的相关性弱;考虑辐射压后,RQQs的黑洞质量和红移的相关性比RLQs的强,RQQs的黑洞质量Mma>108 M☉,而且它的吸积未超爱丁顿吸积;由于辐射压对宽线云有影响,且大多数人认为RQQs可能来自吸积盘,表明宽线区和吸积盘可能有关联;考虑辐射压的RQQs和RLQs的黑洞质量与射电噪度、5 GHz射电光度、热光度的相关性比没有考虑辐射压黑洞质量与射电噪度、5GHz射电光度、热光度的相关性好;考虑辐射压后,RQQs和RLQs的黑洞质量—射电噪度分布、黑洞质量—Ηβ发射线宽度分布、射电噪度—爱丁顿比分布的不同说明辐射压对RQQs和RLQs的不同会产生影响.The redshift,monochromatic luminosity at 5 100 （A）,full-width at half maximum （FWHM） of Hβ,radio loudnessR,total 5 GHz radio-optical flow density and bolometric luminosity of 20 radio quiet quasars （RQQs） and 97 radio loud quasars （RLQs） were collected.The black hole masses and Eddington ratio with and without radiation pressure considered were calculated.The radio luminosity was also obtained by using the total 5 GHz radio flow density.It is found that compared with RLQs,there are weak correlations between black hole masses of RQQs with radiation pressure considered and radio loudness R,5 GHz radio luminosity,bolometric luminosity.After considering radiation pressure,there is a strong correlation between black hole masses and redshift for RQQs than that of RLQs.Considering the impact of radiation pressure,the black hole masses of RQQs are larger than 108 M☉ and the accretion is not beyond Eddington accretion for RQQs.Because of the wide-line cloud was influenced by radiation pressure,and most people believe RQQs is likely from the accretion disk.It may indicate that wide-line area and accretion disk have a correlation.After considering the influence of radiation pressure,black hole masses of RQQs and RLQs have between correlations with radio loudness R,5 GHz radio luminosity,bolometric luminosity.Taking into account the radiation pressure,the different distribution of black hole masses-radio loudness R,black hole massesHβ （FWHM）,and radio loudness R-Eddington ratio may indicate the difference between RQQs and RLQs.

关 键 词：辐射压 黑洞质量 射电类星体 

分 类 号：P158[天文地球—天文学]