BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Forbidden line diagnostics of photoevaporative disc winds - Giulia
  Ballabio (Leicester)
DTSTART:20200512T150000Z
DTEND:20200512T160000Z
UID:TALK141895@talks.cam.ac.uk
CONTACT:Dr Annelies Mortier
DESCRIPTION:Photoevaporation driven by high energy radiation from the cent
 ral star plays an important role in the evolution of protoplanetary discs.
  Photoevaporative winds have been unambiguously detected through blue-shif
 ted emission lines\, but their detailed properties remain uncertain. I wil
 l present a new empirical approach to make observational predictions of th
 ese thermal winds\, seeking to fill the gap between theory and observation
 s. In this work\, we use a self-similar model of an isothermal wind to com
 pute line profiles of several characteristic emission lines\, studying how
  the lines are affected by parameters such as the gas temperature\, disc i
 nclinations\, and density profile. We derive the typical observables as fu
 nctions of the parameters of the model and compare our results with real d
 ata. When combined with new observations\, these new diagnostics will allo
 w us to build up a complete picture of how disc winds shape the evolution 
 of planet-forming discs. 
LOCATION:ONLINE - Details to be sent by email
END:VEVENT
END:VCALENDAR