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Inflow of the Broad-Line Region and the Fundamental Limitations of Reverberation Mapping

机译:宽线地区的流入和混响映射的基本局限

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The evidence from velocity-resolved reverberation mapping show-ing a net infall of the broad-line region (BLR) of AGNs is reviewed. Differ-ent lines in many objects at different epochs give a consistent picture of BLit motions. The motions are dominated by virialized motion (rotation plus turbu-lence) with significant net inflow. The BLR, mass influx is sufficient to power the AGN. The increasing blueshifting of lines with increasing ionization potential is a consequence of scattering off infalling material. The high blueshiftings of the UV lines in Narrow-Line Seyfert is are due to enhanced BLR, inflow rates rather than strong winds. Seemingly conflicting cases of apparent outflow reverberation mapping signatures are a result of the breakdown of the axial-symmetry assumption in reverberation mapping. There are several plausible causes of this breakdown: high-energy variability tends to be intrinsically anisotropic, regions of variability are necessarily located off-axis, and X-ray observations reveal major changes in line-of-sight column densities close to the black hole. Results from reverberation mapping campaigns dominated by a single event need to be treated with caution.
机译:从节目-ING类星体的宽线区(BLR)的净内落速度分辨混响映射证据综述。在许多不同的对象-ENT线在不同的时代给BLIT运动的一致的画面。该运动是由virialized运动(旋转加turbu-住口)有显著净流入为主。最优惠利率,大规模流入的足够功率的AGN。增加随电离电势线的blueshifting是散射关闭下落的材料的结果。在窄线赛弗特是UV线的高blueshiftings是由于增强BLR,流入率而不是强风。表观流出混响映射签名看似矛盾的情况是在混响映射轴向对称的假设的击穿的结果。有此击穿的几个似是而非的原因:高能量的变异趋于本质各向异性的,可变性的区域必然位于离轴,和X射线观测靠近揭示线的视线柱密度大的变化黑洞。从由单一事件需要为主混响映射广告活动的结果,以谨慎对待。

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