论文标题
Im Lupi圆盘中嵌入行星的运动学证据
Kinematic evidence for an embedded planet in the IM Lupi disc
论文作者
论文摘要
我们检验了以下假设：Im lupi Protostellar圆盘中的嵌入式巨型行星可以产生在CO线观测中看到的速度扭结，以及在散射光和连续发射中看到的螺旋臂。我们将行星注射到IM卢比的3D流体动力学模拟中，并使用Monte Carlo辐射转移产生合成观测。我们发现，木星质量的2-3倍的嵌入行星可以在12CO J = 2-1通道图中重现非keplerian速度扰动或“ kinks”。这样的行星还可以解释1.25毫米尘埃连续发射和1.6微米散射的光图像中看到的螺旋臂。我们表明，可以在观察到的峰速度图中追溯到行星的唤醒，该图似乎遵循了我们的模拟和行星盘相互作用的分析模型所期望的形态。
We test the hypothesis that an embedded giant planet in the IM Lupi protostellar disc can produce velocity kinks seen in CO line observations as well as the spiral arms seen in scattered light and continuum emission. We inject planets into 3D hydrodynamics simulations of IM Lupi, generating synthetic observations using Monte Carlo radiative transfer. We find that an embedded planet of 2-3 times the mass of Jupiter can reproduce non-Keplerian velocity perturbations, or `kinks', in the 12CO J=2-1 channel maps. Such a planet can also explain the spiral arms seen in 1.25mm dust continuum emission and 1.6 micron scattered light images. We show that the wake of the planet can be traced in the observed peak velocity map, which appears to closely follow the morphology expected from our simulations and from analytic models of planet-disc interaction.
