耀变体亮温度与黑洞喷流能量的相关性讨论

Discussion on the Correlation between the Brightness Temperature of the Blazars and the Jet Energy of the Black Hole

耀变体(Blazars)的亮温度与黑洞喷流能量和吸积率有重要关系。搜集了53个耀变体源样本,包括22个蝎虎天体(BL Lacs)和31个平谱射电类星体(Flat Spectrum Radio Quasars,FSRQs),研究了耀变体亮温度与黑洞喷流能量的分布,并对子类中亮温度与黑洞喷流能量的相关性进行了讨论。研究结果表明:(1)蝎虎天体与平谱射电类星体的亮温度与黑洞喷流能量的分布存在明显差异,这可能与蝎虎天体与平谱射电类星体的内禀性质有关,也可能与其有无发射线及发射线的强弱有关;(2)蝎虎天体的亮温度与黑洞喷流能量之间的相关性较强,亮温度可以在一定程度上描述蝎虎天体的黑洞喷流能量,亮温度大的蝎虎天体喷流携带的能量也较大;(3)平谱射电类星体的亮温度与黑洞喷流能量之间有弱相关性,平谱射电类星体的亮温度不能清楚地描述黑洞喷流能量,黑洞喷流能量受亮温度影响较小,平谱射电类星体的黑洞喷流能量可能受到其他因素的影响;(4)耀变体的亮温度与黑洞吸积率之间有弱的相关性。

The brightness temperature of blazars is extremely important for studying the properties of its black hole jet.In this paper,53 blazars source samples are collected and calculated,including 21 BL Lac objects and 32 flat-spectrum radio quasars.The distribution of brightness temperature and jet energy of the black hole in this sample was studied,and the correlation between the brightness temperature and jet energy of the black hole in each subclass was discussed.The results show that:(1)The brightness temperature of BL Lac and FSRQs is significantly different from the distribution of jet energy of black holes,which may be related to the difference in the intrinsic properties of BL Lac and FSRQs.(2)The correlation between the brightness temperature of the BL Lac object and the jet energy of the black hole is strong.The brightness temperature can describe the jet energy of the black hole of the BL Lac object to a certain extent,and for the BL Lac with a larger brightness temperature,the energy carried by the jet is also greater.(3)Weak correlation exists between the brightness temperature of the FSRQs and the black hole jet energy and the brightness temperature in FSRQs cannot clearly describe the energy of black hole jet,it may be affected by other factors.(4)The correlation between the brightness temperature and the accretion rate of the black hole in the blazer is small.