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SUMMARY:Spirals\, gaps\, arcs and rings: substructures in protoplanetary d
 iscs shedding light on planet formation - Roman Rafikov
DTSTART:20230721T103000Z
DTEND:20230721T113000Z
UID:TALK203116@talks.cam.ac.uk
CONTACT:Steven Brereton
DESCRIPTION:Recent observations of multiple protoplanetary discs with ALMA
  and direct imaging in the near-IR revealed a richness of intricate substr
 uctures - gaps and rings\, spirals\, arcs\, eccentric offsets\, etc. A num
 ber of ideas have been proposed to explain the emergence of these structur
 es\, with the most exciting possibility being that their origin is related
  to the presence of the young planets in these discs. Indeed\, it has been
  known for more than four decades that the gravitational coupling of an em
 bedded planet and its protoplanetary disc has a strong effect on the orbit
 al evolution of the planet and on the disc structure. I will cover some re
 cent progress in our understanding of the disc-planet interaction\, showin
 g in particular that planets can indeed be the culprit behind the various 
 substructures that we observe in the protoplanetary discs. I will also ill
 ustrate how these substructures can be used to constrain the properties of
  (yet unseen) planets causing them. 
LOCATION:Ryle Large Meeting Room\, Kavli Building and via Zoom
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