论文标题
一个三星级系统，其磁盘撕裂形状的未对准且扭曲的折叠式磁盘
A triple star system with a misaligned and warped circumstellar disk shaped by disk tearing
论文作者
论文摘要
年轻的恒星周围被气体和尘埃盘包围，可以在其中发生行星形成。多个恒星系统中的重力会破坏磁盘。理论模型预测，如果磁盘与恒星的轨道平面未对准，则磁盘应经扭曲并闯入进攻环，这是一种称为磁盘撕裂的现象。我们介绍了三星级系统Gworionis的观察，发现了磁盘撕裂的证据。我们的图像显示了一个与轨道平面和外盘未对准的怪异环。戒指在磁盘的强烈扭曲的中间区域上投射阴影。如果行星可以在扭曲的磁盘内形成，则磁盘撕裂可以提供一种在斜轨道上形成宽分离行星的机制。
Young stars are surrounded by a circumstellar disk of gas and dust, within which planet formation can occur. Gravitational forces in multiple star systems can disrupt the disk. Theoretical models predict that if the disk is misaligned with the orbital plane of the stars, the disk should warp and break into precessing rings, a phenomenon known as disk tearing. We present observations of the triple star system GWOrionis, finding evidence for disk tearing. Our images show an eccentric ring that is misaligned with the orbital planes and the outer disk. The ring casts shadows on a strongly warped intermediate region of the disk. If planets can form within the warped disk, disk tearing could provide a mechanism for forming wide-separation planets on oblique orbits.
