论文标题
宽线射电星系3C 120的射流的组成和力量
The Composition and Power of the Jet of the Broad-Line Radio Galaxy 3C 120
论文作者
论文摘要
我们使用Compton Gamma Ray观测值对其平均软伽马射线光谱进行了测量，通过热吸积流中的光子碰撞从热吸积流中的光子碰撞计算了3C 120射流的电子峰值生产速率。我们发现，该速率大约等于发射射流芯的观察到的同步射线对IR光谱的瘦素的流速，该速率使用Blandford \＆Konigl后的扩展射流模型计算得出。这种巧合表明，喷射组成可能是成对的。然后，我们计算了离子批量运动中的射流功率，并发现它大大超过了通过磁性倒置的磁盘方案可实现的最大黑洞旋转，除非射流主要包含对。接下来，我们发现通过同步加速器发射射流的磁通量等于可以将黑洞螺纹的最大螺状通量。最后，我们比较了在同步加速器发射开始时磁化参数的两个估计值，并发现仅当对射流含量占主导地位时，它们才一致。
We calculated the electron-positron pair production rate at the base of the jet of 3C 120 by collisions of photons from the hot accretion flow using the measurement of its average soft gamma-ray spectrum by Compton Gamma Ray Observatory. We found that this rate approximately equals the flow rate of the leptons emitting the observed synchrotron radio-to-IR spectrum of the jet core, calculated using the extended jet model following Blandford \& Konigl. This coincidence shows the jet composition is likely to be pair-dominated. We then calculated the jet power in the bulk motion of ions, and found it greatly exceeds that achievable by the magnetically arrested disk scenario for the maximum black hole spin unless the jet contains mostly pairs. Next, we found that the magnetic flux through the synchrotron-emitting jet equals the maximum poloidal flux that can thread the black hole. Finally, we compared two estimates of the magnetization parameter at the onset of the synchrotron emission and found they are in agreement only if pairs dominate the jet content.
