论文标题
流出运动学与恒星形成速率的相关性 - AGN中的气体流出。 vi
The correlation of outflow kinematics with star formation rate -- Gas outflows in AGNs. VI
论文作者
论文摘要
我们使用具有FAR-IR检测或恒星形成速率(SFR)估计的1型AGN样本(SFR)的估计值1和2类AGN样本研究了电离气体流出和恒星形成活性之间的联系。通过\ oiii \发射线的速度分散体和速度移位测量的离子气体流出的强度清楚地显示了与SFR的相关性。特定的恒星形成速率(SSFR)与\ oiii \气速度色散之间的连接表明,流出较强的AGN由具有较高SFR的星系托管。与主序列中的星形星系相比,类型1和2型AGN均显示出与非AGN星系相似的SSFR,表明没有瞬时的AGN反馈,而SSFR的AGN对于比主序列星系更强的AGN(较弱)的AGN(较弱)。这些结果与延迟的AGN反馈方案一致。但是,气体分数的死亡/增加也可能导致相关性而没有AGN反馈。
We investigate the connection between ionized gas outflows and star formation activity using a large sample of type 1 and 2 AGNs with far-IR detections or star formation rate (SFR) estimates. The strength of ionized gas outflows, measured by the velocity dispersion and velocity shift of the \OIII\ emission line, clearly shows a correlation with SFR. The connection between specific star formation rate (sSFR) and \OIII\ gas velocity dispersion indicates that AGNs with stronger outflows are hosted by galaxies with higher SFR. Compared to star-forming galaxies in the main sequence, both type 1 and type 2 AGNs show sSFR similar to that of non-AGN galaxies, indicating no instantaneous AGN feedback, while sSFR is higher (lower) for AGNs with stronger (weaker) outflows than that of main sequence galaxies. These results are consistent with a delayed AGN feedback scenario. However, it is also possible that a decease/increase of gas fraction may cause the correlation without AGN feedback.