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SUMMARY:Colloquium | Alessandro Morbidelli
DTSTART:20260521T123000Z
DTEND:20260521T133000Z
DTSTAMP:20260419T221228Z
UID:www.aip.de-2351
CATEGORIES:Scientific
CATEGORIES:Scientific Talk
CATEGORIES:Public
CATEGORIES:Colloquium
CONTACT:Julián Alvarado-Gómez <julian.alvarado-gomez@aip.de>
DESCRIPTION:Speaker: Alessandro Morbidelli (Observatoire de la Cote d&#x27
 \;Azur | Nice\, France)\nTitle: Formation and evolution of a protoplanetar
 y disk: combining observations\, simulations and cosmochemical constraints
 \nAbstract: Observations of protoplanetary disks with ALMA have revealed a
  large diversity of properties\, but also some common tendencies in terms 
 of dust/gas density and radial extension ratios\, as well as the appearanc
 e of features like rings and gaps or cavities. It is too late to observe t
 he proto-solar disk\, but many of its properties can be inferred from the 
 current distribution of planetesimals and using cosmochemical constraints 
 on the chronology of planetesimal accretion and the isotopic heterogeneity
  of the disk. I will review the available data which can be used to recons
 truct the proto-solar disk. The view that emerges is that of a quite stand
 ard disk of about 90 au in gas radius and 45 au in dust radius\, forming p
 lanetesimals at two distinct epochs (one of which very early\, while the d
 isk was presumably still in Class-0 or Class-1 stage) and evolving towards
  a transition disk at the appearance of Jupiter and Saturn. Similarities a
 nd differences with the PDS70 disk will be discussed.\nNote: Host: Oliver 
 Gressel\n
LOCATION:AIP\; Kirch building\, Conference room
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