论文标题
活性银河核的无线电二分法
The radio dichotomy of active galactic nuclei
论文作者
论文摘要
活性银河核（AGN）中无线电二分法的问题仍在争论中，即使已经提出了40多年。为了解决旧的谜语，我们收集了一个带有光学$ b $ band和6厘米波长数据的AGN样本，以分析无线电响度$ {\ rm log} r $。 我们的结果表明，$ {\ rm log} r = \ langle 1.37 \ pm 0.02 \ rangle $之间的分离，Radio-Loud（rl）AGNS和Radio-Quiet（RQ）AGNS之间的分离表明存在RL/RQ二分法。我们首次建议将无线电发光度和无线电响度结合在一起，将AGN分为RLS和RQ，以避免在单一批准方案中可能发生的错误分类问题，我们建议使用双标准划分线$ {\ rm log} l _} l _ {\ rm 6cm 6cm}学习方法。 此外，RL/RQ二分法的关键点是这两个类别的无线电发射的起源，我们建议RLS和RQS的无线电发射具有相同的起源，例如喷气机和迷你射流（流产或流出）通过无线电6厘米发光度和光学$ B $频段发光度之间的相关研究。
The question of radio dichotomy in the active galactic nuclei (AGNs) is still in debate even it has been proposed for more than forty years. In order to solve the old riddle, we collect a sample of AGNs with optical $B$ band and radio 6cm wavelength data to analyze the radio loudness ${\rm log}R$. Our results indicate a separation of ${\rm log}R = \langle 1.37 \pm 0.02 \rangle$ between radio-loud (RL) AGNs and radio-quiet (RQ) AGNs, suggest the existence of an RL/RQ dichotomy. For the first time, we suggest combining radio luminosity and radio loudness as a double-criterion to divide AGNs into RLs and RQs to avoid misclassification problems that may happen in the single-criterion scenario, we propose the double-criterion dividing line ${\rm log}L_{\rm 6cm} = -2.7{\rm log}R +44.3$ by using a machine learning method. In addition, the key point of the RL/RQ dichotomy is the origin of radio emission for the two classes, we suggest the radio emission from RLs and RQs share the same origin, e.g. jets and mini-jets (aborted-jet or outflow), through a correlation study between radio 6cm luminosity and optical $B$ band luminosity.
