论文标题
大量费米·布拉兹（Fermi Blazars
Moderate Correlation between the Accretion Disk and Jet Power in a Large Sample of Fermi Blazars
论文作者
论文摘要
我们介绍了研究积聚磁盘与喷气功率的结果，用于Fermi Gamma-ray空间望远镜检测到的所有大部分的大部分。磁盘功率是从发表结果获得的发射线灯具推断出的。作为喷射功率的指标，我们使用了延长喷气机的低频无线电发光度，在VLBA监测PC尺度喷气机中观察到的最大无线电结速度，从其光谱能量分布的最佳理论模型中推导出的射流中电子的动能以及gamma-ray的亮度，并且具有横向横向校正。在大多数情况下，我们获得了显着的相关性。但是，我们发现相关性通常是由比较数量的共同红移依赖性驱动的。为了消除红移偏置并探测磁盘和射流功率之间的固有相关性，我们计算了小型红移箱中的部分相关系数以及相关性，并发现固有的磁盘喷射相关性仍然存在，但较弱。在常见的红移依赖性不会影响结果的情况下，我们发现Blazars对低磁盘发光性没有高射流功率，而高磁盘亮度具有高射流功率。该结果表明，强大的磁盘是生产强大喷气机的必要但不足的条件。
We present the results of studying the accretion disk vs jet power for a large fraction of all the blazars detected by the Fermi Gamma-Ray Space Telescope. The disk power is inferred from the emission line luminosities obtained from published results. As indicators of jet power, we use low frequency radio luminosity from the extended jet, maximum speed of radio knots observed in the VLBA monitoring of the pc-scale jets, kinetic energy of electrons in the jet deduced from the best-fit theoretical models of their spectral energy distribution, and gamma-ray luminosity with and without beaming correction. We obtain a significant correlation in most of those cases. However, we find that the correlations are often driven by the common redshift dependence of the compared quantities. In order to remove the redshift bias and probe the intrinsic correlation between the disk and jet power, we compute the partial correlation coefficient as well as the correlation in small redshift bins, and find that the intrinsic disk-jet correlation is still present but weaker. In the cases, in which the common redshift dependence does not affect the result, we find that blazars do not exhibit high jet power for low disk luminosities while there are both high and low jet power for high disk luminosities. This result indicates that a powerful disk is a necessary but not sufficient condition to produce a powerful jet.
