一个由盘撕裂塑造的错位且扭曲的拱星盘的三星系统
太阳与恒星天体物理
2020-09-07 v2 星系天体物理
摘要
年轻恒星被气体和尘埃组成的拱星盘所包围，行星形成可发生于其中。多星系统中的引力作用会破坏该盘。理论模型预言，若盘与恒星轨道平面错位，盘应当发生扭曲并断裂为进动环，这一现象被称为盘撕裂。我们给出了对三星系统GW Orionis的观测，发现了盘撕裂的证据。我们的图像显示了一个与轨道平面及外盘均错位的偏心环。该环在盘强烈扭曲的中间区域投下阴影。若行星能在扭曲盘中形成，盘撕裂可提供一种在倾斜轨道上形成宽间距行星的机制。
引用
@article{arxiv.2004.01204,
title = {A triple star system with a misaligned and warped circumstellar disk shaped by disk tearing},
author = {Stefan Kraus and Alexander Kreplin and Alison K. Young and Matthew R. Bate and John D. Monnier and Tim J. Harries and Henning Avenhaus and Jacques Kluska and Anna S. E. Laws and Evan A. Rich and Matthew Willson and Alicia N. Aarnio and Fred C. Adams and Sean M. Andrews and Narsireddy Anugu and Jaehan Bae and Theo ten Brummelaar and Nuria Calvet and Michel Curé and Claire L. Davies and Jacob Ennis and Catherine Espaillat and Tyler Gardner and Lee Hartmann and Sasha Hinkley and Aaron Labdon and Cyprien Lanthermann and Jean-Baptiste LeBouquin and Gail H. Schaefer and Benjamin R. Setterholm and David Wilner and Zhaohuan Zhu},
journal= {arXiv preprint arXiv:2004.01204},
year = {2020}
}
备注
63 pages, 4+13 Figures, 6 Tables, published at Science