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SUMMARY:Signatures of planet formation and orbital evolution in the cold d
 ust emission of protoplanetary discs - Dr. Clément Baruteau (IRAP\, Toulo
 use)
DTSTART:20191202T140000Z
DTEND:20191202T150000Z
UID:TALK130624@talks.cam.ac.uk
CONTACT:Chris Hamilton
DESCRIPTION:The classical picture of protoplanetary discs being smooth\, c
 ontinuous structures of gas and dust has been challenged by the growing nu
 mber of spatially resolved observations. These observations tell us that r
 adial discontinuities and large-scale asymmetries are common features of t
 he emission of protoplanetary discs\, which are often interpreted as signa
 tures of the presence of (unseen) planetary companions. During this semina
 r\, I will report on our recent and ongoing work on how the formation and 
 orbital evolution of planets impact the dust emission in protoplanetary di
 scs\, mainly at radio wavelengths. Through gas and dust hydrodynamical sim
 ulations post-processed with dust radiative transfer calculations\, I will
  show that recent ALMA observations strongly suggest the presence of sever
 al planets in the discs around MWC 758 and HD 169142.
LOCATION:MR14\,  Centre for Mathematical Sciences\, Wilberforce Road\, Cam
 bridge
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