SSP seminar

Wladimir Lyra (American Museum of Natural History)

Monday 7th February 2011, 12:00 noon
Pratt conference room, 60 Garden Street

Turbulence and angular momentum transport in accretion disks remain a topic of debate. With the increasingly disturbing realization that regions of low ionization are robust features of protoplanetary disks, the search for hydrodynamical sources of turbulence continues. A possible source is the baroclinic instability (BI), which has been shown to exist in unmagnetized non-barotropic disks. In this talk I present simulations of baroclinicly unstable, magnetized, 3D disks, in order to assess the interplay between the BI and the magneto-rotational instability (MRI), and the role of buoyancy driven flows in the broader picture of the layered accretion paradigm.


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