用HST观测资料对抗三维时变喷流模拟
Confronting 3 Dimensional Time-dependent Jet Simulations with HST Observations
摘要：
我们执行国家的最先进的，3D的，与时间相关的模拟磁化盘风，进行模拟尺度为60天文单位，以面对光学HST观测的原恒星喷流。我们“放弃”的光学禁行发射产生的冲击在我们的模拟射流，并比较这些与实际观测。我们的模拟再现了丰富的时变喷流结构，包括远离源的喷流旋转，喷流的内部（高达400 km/s）和外部（小于100 km/s）组件，以及与观测到的喷流一致的高达20个天文单位的喷流宽度。这些模拟与数据相比，能够约束盘风模型。特别是，具有盘磁场的模型具有适度的径向空间变化在整个磁盘的青睐。
英文摘要：
We perform state-of-the-art, 3D, time-dependent simulations of magnetized disk winds, carried out to simulation scales of 60 Astronomical Units, in order to confront optical HST observations of protostellar jets. We ``observe'' the optical forbidden line emission produced by shocks within our simulated jets and compare these with actual observations. Our simulations reproduce the rich structure of time varying jets, including jet rotation far from the source, an inner (up to 400 km/s) and outer (less than 100 km/s) component of the jet, and jet widths of up to 20 Astronomical Units in agreement with observed jets. These simulations when compared with the data are able to constrain disk wind models. In particular, models featuring a disk magnetic field with a modest radial spatial variation across the disk are favored.
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