论文标题
PLANT迁移，共振锁定和PDS70中的增生流：比较模型和数据
Planet migration, resonant locking and accretion streams in PDS70: Comparing models and data
论文作者
论文摘要
围绕PDS 70的光盘，具有两个直接成像的嵌入式巨型行星，是研究行星盘相互作用的理想实验室。我们提供了系统的三维平滑粒子流体动力学模拟。在我们的模拟中，可以自由迁移和积聚质量的行星最终以动态稳定的锁定共振配置。我们表明，在红外（散射光）和毫米（热连续体）波长处观察到的特征自然是通过在外行星上的增生流来解释的，而无需围绕行星C周围的圆周盘。我们后处理了我们的近红外合成图像，以说明已知会影响高对比度图像的观察性偏见。我们对观察结果的成功再现表明，仅行星盘动力学相互作用就足以解释PDS 70的观察结果。
The disc surrounding PDS 70, with two directly imaged embedded giant planets, is an ideal laboratory to study planet-disc interaction. We present three-dimensional smoothed particle hydrodynamics simulations of the system. In our simulations, planets, which are free to migrate and accrete mass, end up in a locked resonant configuration that is dynamically stable. We show that features observed at infrared (scattered light) and millimetre (thermal continuum) wavelengths are naturally explained by the accretion stream onto the outer planet, without requiring a circumplanetary disc around planet c. We post-processed our near-infrared synthetic images in order to account for observational biases known to affect high-contrast images. Our successful reproduction of the observations indicates that planet-disc dynamical interactions alone are sufficient to explain the observations of PDS 70.
