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

被引：83

作者：

Kraus, Stefan ^{[1
]}

Kreplin, Alexander ^{[1
]}

Young, Alison K. ^{[1
,2
]}

Bate, Matthew R. ^{[1
]}

Monnier, John D. ^{[3
]}

Harries, Tim J. ^{[1
]}

Avenhaus, Henning ^{[1
,4
]}

Kluska, Jacques ^{[1
]}

Laws, Anna S. E. ^{[3
]}

Rich, Evan A. ^{[1
,5
]}

Willson, Matthew ^{[6
]}

Aarnio, Alicia N. ^{[3
]}

Adams, Fred C. ^{[7
]}

Andrews, Sean M. ^{[1
,3
,8
]}

Anugu, Narsireddy ^{[3
,9
]}

Bae, Jaehan ^{[10
]}

ten Brummelaar, Theo ^{[3
]}

Calvet, Nuria ^{[11
]}

Cure, Michel ^{[1
]}

Davies, Claire L. ^{[3
]}

Ennis, Jacob ^{[12
]}

Espaillat, Catherine ^{[3
]}

Gardner, Tyler ^{[3
]}

Hartmann, Lee ^{[1
]}

Hinkley, Sasha ^{[1
]}

Labdon, Aaron ^{[4
]}

Lanthermann, Cyprien ^{[3
,13
]}

Lebouquin, Jean-Baptiste ^{[10
]}

Schaefer, Gail H. ^{[3
]}

Setterholm, Benjamin R. ^{[7
]}

Wilner, David ^{[7
]}

Zhu, Zhaohuan ^{[14
]}

机构：

[1] Univ Exeter, Sch Phys & Astron, Exeter EX4 4QL, Devon, England

[2] Univ Leicester, Sch Phys & Astron, Leicester LE1 7RH, Leics, England

[3] Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA

[4] Katholieke Univ Leuven, Inst Sterrenkunde, B-3001 Leuven, Belgium

[5] Georgia State Univ, Dept Phys & Astron, Atlanta, GA 30302 USA

[6] Univ North Carolina Greensboro, Dept Phys & Astron, Greensboro, NC 27402 USA

[7] Harvard & Smithsonian, Ctr Astrophys, Cambridge, MA 02138 USA

[8] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA

[9] Carnegie Inst Sci, Washington, DC 20015 USA

[10] Georgia State Univ, Ctr High Angular Resolut Astron Array, Mount Wilson, CA 91023 USA

[11] Univ Valparaiso, Inst Fis & Astron, Valparaiso, Chile

[12] Boston Univ, Dept Astron, Boston, MA 02215 USA

[13] Univ Grenoble Alpes, Inst Planetol & Astrophys, F-38000 Grenoble, France

[14] Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA

来源：

SCIENCE | 2020年 / 369卷 / 6508期

基金：

欧盟地平线“2020”; 欧洲研究理事会;

关键词：

ACCRETION DISK; DATA REDUCTION; BINARY; PROPAGATION; AMBER/VLTI; EVOLUTION; LIGHT;

D O I：

10.1126/science.aba4633

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

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 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.

引用

页码：1233 / +

页数：52

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