论文标题
测试速度扭结作为行星检测方法：表面气体发射中的速度扭结是否是否在平面连续体中的痕量行星螺旋唤醒？
Testing velocity kinks as a planet-detection method: Do velocity kinks in surface gas emission trace planetary spiral wakes in the midplane continuum?
论文作者
论文摘要
通过扰动螺旋臂内的气体运动，通过嵌入的行星产生的螺旋密度波被认为在观察到的CO表面发射的速度通道图中引起``扭结''。如果速度扭结是嵌入行星的可靠探测器，我们应该期望在其他观察示踪剂中看到行星驱动的螺旋臂。我们通过搜索导致所有速度扭结行星候选者的螺旋形的螺旋形中的尘埃连续性来测试这一预测，迄今为止，其轨道位于灰尘连续磁盘中。我们发现，对于我们的样品中的10个速度扭结行星候选物中的6个（DOAR 25，GW LUP，SZ 129，HD 163296＃2，P94和HD 143006）中的10个速度扭结行星中的6个尚未清楚地检测到任何螺旋结构。其余4例包括3个清晰的检测到两臂灰尘螺旋（Elias 27，Im lup和Waoph 6），其中，螺旋臂都不与报道的行星位置唤醒，这表明在行星 - 原孔假说下，在行星 - 原始的原始方法中，是一种准确的方法，用于推断中间层的位置可能包含垂直效果。第10个情况，HD 97048，与当前有关磁盘几何形状的知识尚无定论。
Spiral density waves generated by an embedded planet are understood to cause ``kinks'' in observed velocity channel maps of CO surface emission, by perturbing the gas motion within the spiral arms. If velocity kinks are a reliable probe of embedded planets, we should expect to see the planet-driven spiral arms in other observational tracers. We test this prediction by searching the dust continuum for the midplane counterparts of the spirals responsible for all of the velocity kink planet candidates reported to date, whose orbits lie inside the dust continuum disk. We find no clear detection of any spiral structure in current continuum observations for 6 of the 10 velocity kink planet candidates in our sample (DoAr 25, GW Lup, Sz 129, HD 163296 #2, P94, and HD 143006), despite the high planet masses inferred from the kink amplitude. The remaining 4 cases include 3 clear detections of two-armed dust spirals (Elias 27, IM Lup and WaOph 6) wherein neither spiral arm aligns with a wake originating from reported planet location, suggesting that under the planetary-origin hypothesis, an accurate method for inferring the location of the planet in the midplane may need to encompass vertical effects. The 10th case, HD 97048, is inconclusive with current knowledge of the disk geometry.
