Details

Autor(en) / Beteiligte

• Pérez, Laura M.
• Carpenter, John M.
• Andrews, Sean M.
• Ricci, Luca
• Isella, Andrea
• Linz, Hendrik
• Sargent, Anneila I.
• Wilner, David J.
• Henning, Thomas
• Deller, Adam T.
• Chandler, Claire J.
• Dullemond, Cornelis P.
• Lazio, Joseph
• Menten, Karl M.
• Corder, Stuartt A.
• Storm, Shaye
• Testi, Leonardo
• Tazzari, Marco
• Kwon, Woojin
• Calvet, Nuria
• Greaves, Jane S.
• Harris, Robert J.
• Mundy, Lee G.

Titel

Spiral density waves in a young protoplanetary disk

Ist Teil von

• Science (American Association for the Advancement of Science), 2016-09, Vol.353 (6307), p.1519-1521

Ort / Verlag

United States: American Association for the Advancement of Science

Erscheinungsjahr

2016

Link zum Volltext

Quelle

American Association for the Advancement of Science

Beschreibungen/Notizen

• 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.