Spiral density waves in a young protoplanetary disk

Perez, Laura M., Carpenter, John M., Andrews, Sean M., Ricci, Luca, Isella, Andrea, Linz, Hendrik, Sargent, Annelia I., Wilner, David J., Henning, Thomas, Deller, Adam T., Chandler, Claire J., Dullemond, Cornelius P., Lazio, Joseph, Menten, Karl M., Corder, Stuartt A., Storm, Shaye, Testi, Leonardo, Tazzari, Marco, Kwon, Woojin, Calvet, Nuria, Greaves, Jane S. ORCID: https://orcid.org/0000-0002-3133-413X, Harris, Robert J. and Mundy, Lee G. 2016. Spiral density waves in a young protoplanetary disk. Science 353 (6307) , pp. 1519-1521. 10.1126/science.aaf8296

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Abstract

Gravitational forces are expected to excite spiral density waves in protoplanetary disks, disks of gas and dust orbiting young stars. However, previous observations that showed spiral structure were not able to probe disk midplanes, where most of the mass is concentrated and where planet formation takes place. Using the Atacama Large Millimeter/submillimeter Array, we detected a pair of trailing symmetric spiral arms in the protoplanetary disk surrounding the young star Elias 2-27. The arms extend to the disk outer regions and can be traced down to the midplane. These millimeter-wave observations also reveal an emission gap closer to the star than the spiral arms. We argue that the observed spirals trace shocks of spiral density waves in the midplane of this young disk.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QC Physics
Publisher:	American Association for the Advancement of Science
ISSN:	0036-8075
Date of First Compliant Deposit:	17 February 2017
Date of Acceptance:	5 September 2016
Last Modified:	25 Nov 2024 00:00
URI:	https://orca.cardiff.ac.uk/id/eprint/96500

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