Evidence for quasar fast outflows being accelerated at the scale of tens of parsecs

• DOI: 10.1126/sciadv.abk3291
• Publication Date: 2022-02-11T18:58:36Z
• Authors: Zhicheng He; Guilin Liu; Tinggui Wang; Guobin Mou; Richard Green; Weihao Bian; Huiyuan Wang; Luis C. Ho; Mouyuan Sun; Lu Shen; Nahum Arav; Chen Chen; Qingwen Wu; Hengxiao Guo; Zesen Lin; Junyao Li; Weimin Yi
• Keywords: Outflow

Quasar outflows may play a crucial role in regulating the host galaxy, although spatial scale of quasar remain major enigma, with their acceleration mechanism poorly understood. The kinematic information outflow is key to understanding its origin and mechanism. Here, we report galactocentric distances different components for both sample an individual quasar. We find that distance increases velocity, typical value from several parsecs more than one hundred parsecs, providing direct evidence happening at order 10 parsecs. These carry ∼1% total energy, while kinematics are consistent dust-driven model launching radius comparable dusty torus, indicating coupling between dust radiation produce powerful feedback galaxy evolution.