103 citations · 163 across the 12 of their papers we have counts for
9 papers · 1 filter
Turbulence and dust fragility in protoplanetary discs
Simin Tong, Richard Alexander, Giovanni Rosotti
Dust growth from micron- to planet-size in protoplanetary discs involves multiple physical processes, including dust collisions, the streaming instability, and pebble accretion. Di…
Leading & Trailing Spiral Arms in a Nearly Broken Protoplanetary Disc
Sahl Rowther, Rebecca Nealon, Richard Alexander +1
We perform three-dimensional smoothed particle hydrodynamics simulations to investigate the formation of spiral arms in misaligned circumbinary discs. In a nearly broken disc the m…
Disc-planet misalignment from an unstable triple system: IRAS04125
Rebecca Nealon, Jeremy L. Smallwood, Hossam Aly +5
The IRAS01425+2902 wide binary system was recently reported to have both a young planet and a puzzling geometric arrangement, where the planet and binary both orbit edge-on, but mi…
Compact protoplanetary discs can be produced by dead zones
Simin Tong, Richard Alexander
Radially compact protoplanetary discs (<=50 au) are ubiquitous in nearby star-forming regions. Multiple mechanisms have been invoked to interpret various compact discs. In this pap…
Short-Lived Gravitational Instability in Isolated Irradiated Discs
Sahl Rowther, Daniel J. Price, Christophe Pinte +3
Irradiation from the central star controls the temperature structure in protoplanetary discs. Yet simulations of gravitational instability typically use models of stellar irradiati…
A question of personalities: evolution of viscous and wind-driven protoplanetary discs in the presence of dead zones
Simin Tong, Richard Alexander, Giovanni Rosotti
Whether the angular momentum of protoplanetary discs is redistributed by viscosity or extracted by magnetised winds is a long-standing question. Demographic indicators, such as gas…