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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents

ID: 731855.0, MPI für Astronomie / Publikationen_mpia
Spiral density waves in a young protoplanetary disk
Authors:Pérez, L. M.; Carpenter, J. M.; Andrews, S. M.; Ricci, L.; Isella, A.; Linz, H.; Sargent, A. I.; Wilner, D. J.; Henning, T.; Deller, A. T.; Chandler, C. J.; Dullemond, C. P.; Lazio, J.; Menten, K. M.; Corder, S. A.; Storm, S.; Testi, L.; Tazzari, M.; Kwon, W.; Calvet, N.; Greaves, J. S.; Harris, R. J.; Mundy, L. G.
Date of Publication (YYYY-MM-DD):2016
Title of Journal:Science
Issue / Number:6307
Start Page:1519
End Page:1521
Audience:Not Specified
Abstract / Description: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.
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:ISSN:0036-8075 %R 10.1126/science.aaf8296
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