论文标题
环核分子磁盘：在AGN加油和反馈中的作用
Circum-nuclear molecular disks: role in AGN fueling and feedback
论文作者
论文摘要
现在，使用Alma和Noema的高分辨率可以追溯燃气加油AGN。动力学机制对于交换角动量并将气体驱动到超质量黑洞至关重要。虽然在100％的尺度上，气体有时会停滞在核环中，但在黑洞的影响范围内，最近的观测值达到10％（50Mas），可能会在随机取向的核分子磁盘中引起吸烟的枪支证据。还观察到AGN反馈，以狭窄和准确的分子流出形式，该形式指向无线电模式，或者被无线电射流夹带。已经在分子流出中观察到了进动，表明无线电喷射的进攻。最好的候选者之一是小规模的Bardeen-Petterson效应，该效应在积聚材料上施加了扭矩，并产生了扩展的磁盘经纱。 内部和大规模磁盘之间的错位增强了AGN反馈的耦合，因为射流扫描了分子盘的很大一部分。
Gas inflows fueling AGN are now traceable at high-resolution with ALMA and NOEMA. Dynamical mechanisms are essential to exchange angular momentum and drive the gas to the super-massive black hole. While at 100pc scale, the gas is sometimes stalled in nuclear rings, recent observations reaching 10pc scale (50mas), inside the sphere of influence of the black hole, may bring smoking gun evidence of fueling, within a randomly oriented nuclear molecular disk. AGN feedback is also observed, in the form of narrow and collimated molecular outflows, which point towards the radio mode, or entrainment by a radio jet. Precession has been observed in a molecular outflow, indicating the precession of the radio jet. One of the best candidates for precession is the Bardeen-Petterson effect at small scale, which exerts a torque on the accreting material, and produces an extended disk warp. The misalignment between the inner and large-scale disk, enhances the coupling of the AGN feedback, since the jet sweeps a large part of the molecular disk.
