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Spiral-driven accretion in protoplanetary discs - I. 2D models
Geoffroy Lesur, Patrick Hennebelle, Sébastien Fromang
We numerically investigate the dynamics of a 2D non-magnetised protoplanetary disc surrounded by an inflow coming from an external envelope. We find that the accretion shock betwee…
Local and global aspects of the linear MRI in accretion disks
Henrik N. Latter, Sebastien Fromang, Julien Faure
We revisit the linear MRI in a cylindrical model of an accretion disk and uncover a number of attractive results overlooked in previous treatments. In particular, we elucidate the…
Angular momentum transport and large eddy simulations in magnetorotational turbulence: the small Pm limit
H. Meheut, S. Fromang, G. Lesur +2
Angular momentum transport in accretion discs is often believed to be due to magnetohydrodynamic turbulence mediated by the magnetorotational instability. Despite an abundant liter…
Modelling the high-energy emission from gamma-ray binaries using numerical relativistic hydrodynamics
Guillaume Dubus, Astrid Lamberts, Sébastien Fromang
Detailed modeling of the high-energy emission from gamma-ray binaries has been propounded as a path to pulsar wind physics. Fulfilling this ambition requires a coherent model of th…