一个三星系统，其星周盘因盘撕裂而变形，
A triple star system with a misaligned and warped circumstellar disk shaped by disk tearing
摘要：
年轻的恒星被一个由气体和尘埃组成的星周盘所包围，在这个盘中可以形成行星形成。多恒星系统中的引力可以破坏磁盘。理论模型预测，如果圆盘与恒星的轨道平面不对齐，圆盘就会扭曲并破裂成旋进环，这种现象称为圆盘撕裂。我们目前的三星系统GWOrionis的意见，发现磁盘撕裂的证据。我们的图像显示了一个偏心环，与轨道平面和外盘不对齐。环在盘的强烈翘曲的中间区域上投射阴影。如果行星可以在扭曲的盘内形成，盘撕裂可以提供一种在倾斜轨道上形成宽分离行星的机制。
英文摘要：
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.
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