11-15 May 2020
Leibniz Institute for Astrophysics Potsdam (AIP)
Europe/Berlin timezone

A systematic exploration of magnetised disc wind solutions in protoplanetary discs

11 May 2020, 13:25
Lecture Hall (Leibniz Institute for Astrophysics Potsdam (AIP))

Lecture Hall

Leibniz Institute for Astrophysics Potsdam (AIP)

An der Sternwarte 16 14482 Potsdam, Germany
Oral presentation Main conference Magnetic Winds & Level of Turbulence


Geoffroy Lesur (Institute of planetology and astrophysics of Grenoble/CNRS)


The recent developments in our understanding of the chemical composition, the ionisation equilibrium and the dynamics of protoplanetary discs has led to the conclusion that magnetised disc wind (MDW) are probably playing an important role in shaping the long term evolution of these objects. Most of our understanding of these winds comes from global direct numerical simulations which include complex microphysics and which explore only a very limited subspace of parameters. Hence, it is very difficult to draw firm conclusions about the long-term evolution of discs subject to MDW.

In this contribution, I will present a systematic exploration of MDW solutions, which can then be used in secular models to predict the evolution of a disc, in a way similar to the "alpha disc" model. I will also discuss the solutions topology (top/down symmetry, midplane/surface accretion layers, laminar stress, etc...) which have often been mis-interpreted in the literature.

Primary author

Geoffroy Lesur (Institute of planetology and astrophysics of Grenoble/CNRS)

Presentation Materials

There are no materials yet.