论文标题
星系核周围的分子气体动力学
Molecular gas dynamics around nuclei of galaxies
论文作者
论文摘要
最近在附近的几个Seyfert中对Alma进行了分子线观测，揭示了分子Tori的存在，并且气流的性质为10-20〜PC量表。在100〜PC量表或KPC尺度上，先前在重力扭矩上的NOEMA作品表明，只有大约三分之一的Seyfert星系经历了分子流入和中央燃料，而在大多数情况下，气体在环中停滞不前。在较高的分辨率（即10-20〜PC量表）下，在某些情况下，由于核尾巴螺旋的燃料，现在有可能看到受黑洞电位影响的AGN加油。这为吸烟枪支提供了核加油的证据。在我们的样品星系中，高达60〜MAS的角度分辨率使我们能够到达黑洞（BH）影响球，并且BH质量可以比M-Sigma关系更直接地得出。
Recent molecular line observations with ALMA in several nearby Seyferts have revealed the existence of molecular tori, and the nature of gas flows at 10-20~pc scale. At 100~pc scale, or kpc-scale, previous NOEMA work on gravitational torques had shown that only about one third of Seyfert galaxies experienced molecular inflow and central fueling, while in most cases the gas was stalled in rings. At higher resolution, i.e. 10-20~pc scale, it is possible now to see in some cases AGN fueling due to nuclear trailing spirals, influenced by the black hole potential. This brings smoking gun evidence for nuclear fueling. In our sample galaxies, the angular resolution of up to 60~mas allows us to reach the black hole (BH) sphere of influence and the BH mass can be derived more directly than with the M-sigma relation.
