Journal
SCIENCE
Volume 369, Issue 6508, Pages 1233-+Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aba4633
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Funding
- European Research Council (ERC) under the European Commission's (EC) Horizon 2020 program [639889]
- ERC under the EC's Horizon 2020 program [681601]
- ERC under the EC's Seventh Framework program [339248]
- Science Technology and Facilities Council (STFC) [1918673]
- NSF [NSF-AST1506540, NSF-AST 1830728]
- NASA [NAS5-26555, NNX16AD43G]
- research council of the KU Leuven [C14/17/082]
- NASA through the NASA Hubble Fellowship - Space Telescope Science Institute [HST-HF2-51427.001-A]
- NASA [906740, NNX16AD43G] Funding Source: Federal RePORTER
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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.
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