A triple-star system with a misaligned and warped circumstellar disk shaped by disk tearing

doi:10.1126/science.aba4633

GSTDTAP > 气候变化

DOI	10.1126/science.aba4633
	A triple-star system with a misaligned and warped circumstellar disk shaped by disk tearing
	Stefan Kraus; Alexander Kreplin; Alison K. Young; Matthew R. Bate; John D. Monnier; Tim J. Harries; Henning Avenhaus; Jacques Kluska; Anna S. E. Laws; Evan A. Rich; Matthew Willson; Alicia N. Aarnio; Fred C. Adams; Sean M. Andrews; Narsireddy Anugu; Jaehan Bae; Theo ten Brummelaar; Nuria Calvet; Michel Curé; Claire L. Davies; Jacob Ennis; Catherine Espaillat; Tyler Gardner; Lee Hartmann; Sasha Hinkley; Aaron Labdon; Cyprien Lanthermann; Jean-Baptiste LeBouquin; Gail H. Schaefer; Benjamin R. Setterholm; David Wilner; Zhaohuan Zhu
	2020-09-04
发表期刊	Science
出版年	2020
英文摘要	During the process of star formation, a disk of gas and dust forms around the young star, controlling the accretion of more material. Once the star has formed, any leftover material in this circumstellar disk can form planets. If a binary or triple star forms at the center of the disk, theoretical models predict that tidal torques caused by their orbits can rip the disk apart, in a process known as disk tearing. Kraus et al. observed the nearby young triple-star system GW Orionis with multiple near-infrared and submillimeter telescopes, using the techniques of interferometry and polarimetry. They found evidence for multiple rings with different orientations and warping of part of the disk, both produced by disk tearing. Science , this issue p. [1233][1] 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 GW Orionis, 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. [1]: /lookup/doi/10.1126/science.aba4633
领域	气候变化 ; 资源环境
URL	查看原文
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/293272
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Stefan Kraus,Alexander Kreplin,Alison K. Young,et al. A triple-star system with a misaligned and warped circumstellar disk shaped by disk tearing[J]. Science,2020.
APA	Stefan Kraus.,Alexander Kreplin.,Alison K. Young.,Matthew R. Bate.,John D. Monnier.,...&Zhaohuan Zhu.(2020).A triple-star system with a misaligned and warped circumstellar disk shaped by disk tearing.Science.
MLA	Stefan Kraus,et al."A triple-star system with a misaligned and warped circumstellar disk shaped by disk tearing".Science (2020).