论文标题
关于在3C 279的射流中注入相对论电子
On the Injection of Relativistic Electrons in the Jet of 3C 279
论文作者
论文摘要
通过分析时间依赖性同步加速器自compton +外部康普顿发射模型中的注入电子能量分布（EED），研究了3C 279中电子的加速。在该模型中，假设相对论电子被连续注入发射区域，并且注入的ED [$ q_e^\ prime（γ^\ prime）$]遵循单个幂律形式，具有低 - 和高富集的临界值$ \rmγ_{min}'$和$γ_$γ_$γ_} $quarmγ_$ nmax;即，$ q_e^\ prime（γ^\ prime）\proptoγ^{\ prime-n} $。该模型应用于3C 279的14个准杂音光谱分布（SED）。马尔可夫链蒙特卡洛拟合技术被执行以获得最佳拟合参数和参数的不确定性。结果表明，注入的EED在每个状态中受到良好的约束。 $ n $的值在2.5至3.8范围内，比经典的非权利性冲击加速度所期望的值大。但是，$ n $的巨大价值可以用相对论的倾斜冲击加速度来解释。耀斑的活动似乎与提高的加速度效率有关，反映在增加的$γ'_ {\ rm min} $和电子注入能力中。
The acceleration of electrons in 3C 279 is investigated through analyzing the injected electron energy distribution (EED) in a time-dependent synchrotron self-Compton + external Compton emission model. In this model, it is assumed that relativistic electrons are continuously injected into the emission region, and the injected EED [$Q_e^\prime(γ^\prime)$] follows a single power-law form with low- and high-energy cutoffs $\rm γ_{min}'$ and $\rm γ_{max}'$, respectively, and the spectral index $n$, i.e, $Q_e^\prime(γ^\prime)\proptoγ^{\prime-n}$. This model is applied to 14 quasi-simultaneous spectral energy distributions (SEDs) of 3C 279. The Markov Chain Monte Carlo fitting technique is performed to obtain the best-fitting parameters and the uncertainties on the parameters. The results show that the injected EED is well constrained in each state. The value of $n$ is in the range of 2.5 to 3.8, which is larger than that expected by the classic non-relativistic shock acceleration. However, the large value of $n$ can be explained by the relativistic oblique shock acceleration. The flaring activity seems to be related to an increased acceleration efficiency, reflected in an increased $γ'_{\rm min}$ and electron injection power.
