BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:From dust to planets: The ALMA and VLA view of planet formation - 
 Francesco Zagaria (IoA)
DTSTART:20240123T130000Z
DTEND:20240123T140000Z
UID:TALK210817@talks.cam.ac.uk
CONTACT:Dr Emily Sandford
DESCRIPTION:Over the last decade\, the Atacama Large Millimeter/submillime
 ter Array (ALMA) made it possible to observe protoplanetary discs\, the bi
 rth sites of planets\, at unprecedented angular resolution and sensitivity
 \, revolutionizing our understanding of planet formation. When observed at
  high-enough angular resolution\, protoplanetary discs show sequences of a
 xisymmetric dark and bright substructures\, colloquially referred to as "g
 aps and rings". The origin of such substructures and the role they play in
  the planet formation process are\, however\, still debated. They are cons
 idered to be either the signposts of ongoing interactions between discs an
 d their hosting (proto-)planets\, or the ideal location for the formation 
 of new planetary bodies. The best way to solve this "chicken and the egg" 
 problem is characterizing the physical properties of these gaps and rings.
  In this talk\, I will first discuss recent attempts to observationally in
 fer the size\, density\, and temperature of dust in these rings\, relying 
 on collecting and modelling multi-frequency\, i.e. (sub-)mm to cm\, contin
 uum data in a handful of well studied systems. I will then show how dust p
 roperties\, in combination with gas kinematics\, can be used to understand
  if bright rings are prone to the formation of new planets. Finally\, I wi
 ll discuss how my results can be extended to a statistical level using mid
 -resolution observations of populations of discs in nearby star-formation 
 regions.
LOCATION:Ryle seminar room + ONLINE - Details to be sent by email
END:VEVENT
END:VCALENDAR