为什么是Windy Torus？
Why a Windy Torus?
摘要：
以风或喷流形式出现的物质抛射似乎与吸积一样是类星体活动的基础，并且可以在许多具有加宽和蓝移紫外吸收特征的物体中直接观察到。在尘埃升华半径范围内，可以提出一个令人信服的论据，说明驱动这种电离外流的辐射压力。除此之外，辐射压力更为重要，因为来自中央引擎的高能光子现在可以推动尘埃颗粒。这种物理学是假定的模糊环面的尘风模型的基础。具体来说，在我们的模型中的尘埃风首先从外部吸积盘发射的磁离心风，然后加速和中央连续辐射压力的形状。这样的风可以合理地解释两种必要的遮蔽介质，以解释宽线和窄线物体的比例，以及在类星体光谱能量分布中常见的中红外辐射。现在需要一个令人信服的证明，即大规模的，有组织的磁场存在于无线电安静的活动星系核中，以支持这一范例。
英文摘要：
Mass ejection in the form of winds or jets appears to be as fundamental to quasar activity as accretion, and can be directly observed in many objects with broadened and blue-shifted UV absorption features. A convincing argument for radiation pressure driving this ionized outflow can be made within the dust sublimation radius. Beyond, radiation pressure is even more important, as high energy photons from the central engine can now push on dust grains. This physics underlies the dusty-wind model for the putative obscuring torus. Specifically, the dusty wind in our model is first launched from the outer accretion disk as a magneto-centrifugal wind and then accelerated and shaped by radiation pressure from the central continuum. Such a wind can plausibly account for both the necessary obscuring medium to explain the ratio of broad-to-narrow-line objects and the mid-infrared emission commonly seen in quasar spectral energy distributions. A convincing demonstration that large-scale, organized magnetic fields are present in radio-quiet active galactic nuclei is now required to bolster the case for this paradigm.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
