论文标题
部分可观测时空混沌系统的无模型预测
First Images of the Protoplanetary Disk Around PDS 201
论文作者
论文摘要
散射的光成像揭示了在年轻的Herbig ae/be stars $ - $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $上的研究中，对上磁盘层中的结构的研究是持续的行星形成的潜在迹象。我们介绍了围绕变量Herbig AE Star PDS 201（V* V351 ORI）的第一个图像，并通过3D蒙特卡罗辐射传递模拟和正向建模对图像和光谱分布进行分析。 LBT的LBTI/LMIRCAM在三个数据集中检测到该磁盘，包括$ ks $和$ l'U $滤波器中的直接观察，以及360 $^\ circ $ circ $ vector apodector apodection apodizing apodection apodizing apodizing apodizing apodized apodized apodizing apodized apodizing apodized apodized apodized apodized apodized apodizing apodized coronagraph。散落的灯光延伸至非常大的$ \ sim $ 250 au，这将其置于此类磁盘中。磁盘外部，我们在$ \ $ 5 m $ _ {jup} $ at $ \ gtrsim $ 1.5英寸（$ \ gtrsim $ 500 au）上建立了检测极限PC）在光谱能量分布中也很明显。与先前从原始磁盘子结构中推论的行星种群相比，大差距是轨道距离（$ \ sim $ 60-100 au）的多个高质量巨型行星的可能路标，它们异常大且分离。
Scattered light imaging has revealed nearly a dozen circumstellar disks around young Herbig Ae/Be stars$-$enabling studies of structures in the upper disk layers as potential signs of on-going planet formation. We present the first images of the disk around the variable Herbig Ae star PDS 201 (V* V351 Ori), and an analysis of the images and spectral energy distribution through 3D Monte-Carlo radiative transfer simulations and forward modelling. The disk is detected in three datasets with LBTI/LMIRCam at the LBT, including direct observations in the $Ks$ and $L'$ filters, and an $L'$ observation with the 360$^\circ$ vector apodizing phase plate coronagraph. The scattered light disk extends to a very large radius of $\sim$250 au, which places it among the largest of such disks. Exterior to the disk, we establish detection limits on substellar companions down to $\sim$5 M$_{Jup}$ at $\gtrsim$1.5" ($\gtrsim$500 au), assuming the Baraffe et al. (2015) models. The images show a radial gap extending to $\sim$0.4" ($\sim$140 au at a distance of 340 pc) that is also evident in the spectral energy distribution. The large gap is a possible signpost of multiple high-mass giant planets at orbital distances ($\sim$60-100 au) that are unusually massive and widely-separated compared to those of planet populations previously inferred from protoplanetary disk substructures.
