Conveners
Thursday Morning
- Mark Wardle (MacquarieUniversity)
Prof.
Jeremy Goodman
(Princeton University)
07/08/2014, 09:00
Workshop Main Programme
Accretion rates are usually diagnosed via boundary-layer emission. However, this does not directly reveal the stresses that transport angular momentum. If MRI is responsible, then it may be confined to active layers off the disk midplane at some radii. On the other hand, recent years have seen a growing body of observations of molecular emission lines from high altitudes in the disk,...
Dr
Jacob Simon
(Sagan Fellow, Southwest Research Institute, JILA/University of Colorado)
07/08/2014, 09:30
Workshop Main Programme
Protoplanetary disks play a key role in star and planet formation processes. Turbulence in these disks, which arises from the magnetorotational instability (MRI), not only causes accretion of mass onto the central star, but also sets the conditions for processes such as dust settling, planetesimal formation, and planet migration. However, the exact nature of this turbulence is still not very...
Dr
Jon Ramsey
(Universität Heidelberg, Zentrum für Astronomie, Insitut für Theoretische Astrophysik)
07/08/2014, 10:30
Workshop Main Programme
It is generally expected that most low-mass young stars have a (time-variable) far-UV excess which is correlated with ongoing accretion. Although far-UV photons cannot ionise hydrogen, they are important for dissociating hydrogen, ionising carbon, as well as other processes (e.g., photoelectric heating of dust, pumping of molecular hydrogen). In this talk, I will present the results of...
Dr
Mario Flock
(DSM/IRFU/SAP CEA)
07/08/2014, 11:00
Workshop Main Programme
In this talk we present current results from our research using global 3D non-ideal MHD stratified disk simulations. We focus on axisymmetric and non-axisymmetric structures, evocate by the magneto-rotational instability in the outer regions of a protoplanetary disk. We performed non-ideal global 3D MHD stratified simulation of the dead-zone outer edge using the FARGO MHD code PLUTO. The...
