论文标题
光蒸发风中的灰尘夹带：过渡磁盘的合成观察结果
Dust entrainment in photoevaporative winds: Synthetic observations of transition disks
论文作者
论文摘要
X射线和极端硫酸菌（XEUV-）驱动的光蒸发风在年轻的T-Tauri恒星周围作用于原行星磁盘上，可能会严重影响磁盘的演变，从而影响气体和灰尘分布。我们计算XEUV辐射的过渡盘的尘埃密度，间隙大小为20和30 au，并确定是否可以在波长$ 0.7 \ lyseSimλ_\ mathrm {obs} [μ\ Mathrm {m}] \ sillesim 1.8 $ 1.8 $ 1.8 $中观察到它们。对于XEUV驱动的流出围绕$ m_* = 0.7 \ Mathrm {M} _ \ odot $ t-tauri星，$ l_x = 2 \ cdot 10^{30} \ Mathrm {erg/s} $ 10^{ - 3} \ dot {m} _ \ mathrm {gas} $，如果我们调用垂直沉降，则流出非常准确。合成的图像表现出独特的烟囱样结构。这些烟囱的相对强度很低，但是在最佳条件下，它们的检测仍然可行，例如JWST Nircam和Sphere Irdis。
X-ray- and extreme-ultraviolet- (XEUV-) driven photoevaporative winds acting on protoplanetary disks around young T-Tauri stars may strongly impact disk evolution, affecting both gas and dust distributions. We compute dust densities for the wind regions of XEUV-irradiated transition disks with gap sizes of 20 and 30 AU, and determine whether they can be observed at wavelengths $0.7 \lesssim λ_\mathrm{obs} [μ\mathrm{m}] \lesssim 1.8$ in scattered and polarised light with current instrumentation. For an XEUV-driven outflow around a $M_* = 0.7 \mathrm{M}_\odot$ T-Tauri star with $L_X = 2 \cdot 10^{30} \mathrm{erg/s}$, we find dust mass-loss rates $\dot{M}_\mathrm{dust} \lesssim 2.0 \cdot 10^{-3} \dot{M}_\mathrm{gas}$, and if we invoke vertical settling, the outflow is quite collimated. The synthesised images exhibit a distinct chimney-like structure. The relative intensity of these chimneys is low, but under optimal conditions, their detection may still be feasible with current instrumentation such as JWST NIRCam and SPHERE IRDIS.
