21 citations · 30 across the 5 of their papers we have counts for
4 papers · 1 filter
The CO snow line favours strong clumping by the streaming instability in protoplanetary discs with porous grains
Jean-François Gonzalez, Stéphane Michoulier
Context: The radial drift and fragmentation of small dust grains in protoplanetary discs impedes their growth past centimetre sizes. Several mechanisms have been proposed to overco…
WInDI: a Warp-Induced Dust Instability in protoplanetary discs
Hossam Aly, Rebecca Nealon, Jean-François Gonzalez
We identify a new dust instability that occurs in warped discs. The instability is caused by the oscillatory gas motions induced by the warp in the bending wave regime. We first de…
Size and density sorting of dust grains in SPH simulations of protoplanetary disc II: Fragmentation
Francesco C. Pignatale, Jean-François Gonzalez, Bernard Bourdon +1
Grain growth and fragmentation are important processes in building up large dust aggregates in protoplanetary discs. Using a 3D two-phase (gas-dust) SPH code, we investigate the co…
Size and density sorting of dust grains in SPH simulations of protoplanetary discs
Francesco C. Pignatale, Jean-François Gonzalez, Nicolas Cuello +2
The size and density of dust grains determine their response to gas drag in protoplanetary discs. Aerodynamical (size x density) sorting is one of the proposed mechanisms to explai…