论文标题
df tau和uy aur a的喷气机中的空间分辨速度结构
Spatially resolved velocity structure in jets of DF Tau and UY Aur A
论文作者
论文摘要
年轻的星星质量和角度磁盘的角度动量。其中一些也驱动流出，可以在光学上禁止发射线（FELS）中区分。我们分析了通过哈勃太空望远镜（HST）长时间光谱观察到的二进制T托里星的样品，以寻找空间分辨的外流。我们在二十一例中检测到解决的[O I]排放。在DF Tau中，我们可以在喷气式飞机中解决高速和中速度流出，然后反式爆炸至60 au。流出在内部12 au中加速，并在此后保持恒定速度。在UY AUR中，我们发现了Uy Aur A的蓝色和红移流出，以及Uy Aur B的蓝色偏移喷射。所有这些功能都在[Fe II]中看到了所有这些功能，相距十年，这表明基础流出模式在这些时间标准上都稳定。
Young stars accrete mass and angular momentum from their circumstellar disks. Some of them also drive outflows, which can be distinguished in optical forbidden emission lines (FELs). We analyze a sample of binary T Tauri stars observed with long-slit spectroscopy by the Hubble Space Telescope (HST), searching for spatially resolved outflows. We detect resolved [O I] emission in two cases out of twenty one. In DF Tau we resolve high and medium velocity outflows in a jet and counterjet out to 60 au. The outflows are accelerated within the inner 12 au and retain a constant speed thereafter. In UY Aur, we detect a blue- and a red-shifted outflow from UY Aur A, as well as a blue-shifted jet from UY Aur B. All of these features have been seen in [Fe II] with data taken ten years apart indicating that the underlying outflow pattern is stable on these timescales.
