A triple star system with a misaligned and warped circumstellar disk shaped by disk tearing
Abstract
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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Cite
@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}
}
Comments
63 pages, 4+13 Figures, 6 Tables, published at Science