论文标题
通过无线电仪查看无线电的AGN
Looking at Radio-Quiet AGN with Radio Polarimetry
论文作者
论文摘要
无线电定价类星体（RQQ）中的主要无线电发射机制是一个悬而未决的问题。主要竞争者包括：低功率无线电喷气机，风，恒星形成和冠状发射。我们的工作表明，无线电两极化和发射线研究可以帮助区分这些情况并确定主要贡献者。 Our multi-frequency, multi-scale radio polarization study has revealed a composite jet and "wind" radio outflow in the radio-intermediate quasar, III Zw 2, as well as in the BALQSO, Mrk 231. Our radio polarization study in conjunction with the [O III] emission-line study of five type 2 RQQs have provided insights on the interplay of jets/winds and emission-line gas.这些来源揭示了极化无线电发射和[O III]发射之间的抗相关性。这类似于文献中一些无线电大风AGN中观察到的，这表明无线电发射可以被发射线气体去极化。总体而言，我们的工作表明，无线电流出与周围气态环境之间的紧密相互作用可能是导致其在RQ和RI AGN中发育迟缓的形式。
The dominant radio emission mechanism in radio-quiet quasars (RQQs) is an open question. Primary contenders include: low-power radio jets, winds, star-formation and coronal emission. Our work suggests that radio polarization and emission-line studies can help to distinguish between these scenarios and determine the primary contributor. Our multi-frequency, multi-scale radio polarization study has revealed a composite jet and "wind" radio outflow in the radio-intermediate quasar, III Zw 2, as well as in the BALQSO, Mrk 231. Our radio polarization study in conjunction with the [O III] emission-line study of five type 2 RQQs have provided insights on the interplay of jets/winds and emission-line gas. These sources reveal an anti-correlation between polarized radio emission and [O III] emission. This is similar to that observed in some radio-loud AGN in the literature and suggests that the radio emission could be depolarized by the emission-line gas. Overall, our work suggests that a close interaction between the radio outflow and the surrounding gaseous environment is likely to be responsible for their stunted form in RQ and RI AGN.
