activity
20052026
most citedThanatology in Protoplanetary Discs: the combined influence of Ohmic, Hall, and ambipolar diffusion on dead zones

284 citations · 4.1k across the 67 of their papers we have counts for

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26 papers · 1 filter

astro-ph.EP2026★ 2 cited

Global magnetohydrodynamic simulations of the inner regions of protoplanetary discs. II. Vertical-net-flux regime

Matthew J. O. Roberts, Henrik N. Latter, Geoffroy Lesur

The inner regions of protoplanetary discs, which encompass the putative habitable zone, are dynamically complex, featuring a relatively well-ionised, turbulent active zone located…

astro-ph.EP2025

High-resolution models of the vertical shear instability

Geoffroy Lesur, Henrik N. Latter, Gordon I. Ogilvie

(abridged) Context: The vertical shear instability (VSI) is a promising mechanism to generate turbulence and transport angular momentum in protoplanetary discs. While most recent w…

astro-ph.EP2025★ 7 cited

Global magnetohydrodynamic simulations of the inner regions of protoplanetary discs. I. Zero-net flux regime

Matthew J. O. Roberts, Henrik N. Latter, Geoffroy Lesur

The inner regions of protoplanetary discs, which encompass the putative habitable zone, are dynamically complex, featuring a well-ionised, turbulent active inner region and a poorl…

astro-ph.EP2025★ 11 cited

Gone with the wind: the outward migration of eccentric giant planets in windy disks

Gaylor Wafflard-Fernandez, Geoffroy Lesur

Recent studies indicate that circumstellar disks exhibit weak turbulence, with their dynamics and evolution being primarily influenced by magnetic winds. However, most numerical st…

astro-ph.EP2025

The vertical shear instability in protoplanetary discs as an outwardly travelling wave. I. Linear theory

Gordon I. Ogilvie, Henrik N. Latter, Geoffroy Lesur

We revisit the global linear theory of the vertical shear instability (VSI) in protoplanetary discs with an imposed radial temperature gradient. We focus on the regime in which the…

astro-ph.EP2024

Planetesimal gravitational collapse in a gaseous environment: Thermal and dynamic evolution

P. Segretain, H. Méheut, M. Moreira +3

Planetesimal formation models often invoke the gravitational collapse of pebble clouds to overcome various barriers to grain growth and propose processes to concentrate particles s…