445 citations · 2.5k across the 51 of their papers we have counts for
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Finite-time response of dynamo mean-field effects in magnetorotational turbulence
Oliver Gressel, Martin E. Pessah
Accretion disc turbulence along with its effect on large-scale magnetic fields plays an important role in understanding disc evolution in general, and the launching of astrophysica…
Characterizing the mean-field dynamo in turbulent accretion disks
Oliver Gressel, Martin E. Pessah
The formation and evolution of a wide class of astrophysical objects is governed by turbulent, magnetized accretion disks. Understanding their secular dynamics is of primary import…
Dynamo effects in magnetorotational turbulence with finite thermal diffusivity
Oliver Gressel
We investigate the saturation level of hydromagnetic turbulence driven by the magnetorotational instability in the case of vanishing net flux. Motivated by a recent paper of Bodo,…
MRI channel flows in vertically-stratified models of accretion disks
Henrik N. Latter, Sebastien Fromang, Oliver Gressel
Simulations of the magnetorotational instability (MRI) in 'unstratified' shearing boxes exhibit powerful coherent flows, whereby the fluid vertically splits into countermoving plan…