Catastrophic Events in Protoplanetary Disks and Their Observational Manifestations

  title={Catastrophic Events in Protoplanetary Disks and Their Observational Manifestations},
  author={Tatiana V. Demidova and Vladimir P. Grinin},
  journal={The Astrophysical Journal},
Observations of protoplanetary disks with high angular resolution using an ALMA interferometer showed that ring-shaped structures are often visible in their images, indicating strong disturbances in the disks. The mechanisms of their formation are vividly discussed in the literature. This article shows that the formation of such structures can be the result of destructive collisions of large bodies (planetesimals and planetary embryos) accompanied by the formation of a large number of dust… 

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