activity
20242026
most citedThe Role of Drag and Gravity on Dust Concentration in a Gravitationally Unstable Disc

1 citations · 1 across the 6 of their papers we have counts for

collaborators

7 papers

astro-ph.EP2026

A metallicity sweet spot for disc fragmentation and planet formation

Ethan J. Carter, Dimitris Stamatellos, George Blaylock-Squibbs +2

Fragmentation of gravitationally unstable discs offers an alternate formation mechanism for gas giant planets and brown dwarfs on wide orbits. Metallicity plays a key role in disc…

astro-ph.EP2026

Revisiting gravitational instability in protostellar discs with improved radiative cooling models

Alison K. Young, Ken Rice, Richard Booth +1

Young discs are expected to be significantly more massive than those observed at Myr and it is at this earliest stage that planet formation likely begins. Such massive discs m…

astro-ph.SR2026

The Impact of Radiation Environment on the Evolution and Fragmentation of Protostellar Discs

Matt T. Cusack, Paul C. Clark, Ken Rice +5

We present high-resolution zoom-in simulations of molecular clouds exposed to an interstellar radiation field and cosmic ray ionisation rate up to 1000 times stronger than that of…

astro-ph.EP2025

On the Gravitational Collapse of Small Dust Grains in Self-gravitating Disk Structures

Hans Baehr, Ken Rice, Chao-Chin Yang +1

Planet formation may begin much earlier than previously expected, when the protoplanetary disk is still massive and gravitationally unstable. It has been proposed that solid grains…

astro-ph.EP2025

Dust density enhancements and the direct formation of planetary cores in gravitationally unstable discs

Ken Rice, Hans Baehr, Alison K Young +5

Planet formation via core accretion involves the growth of solids that can accumulate to form planetary cores. There are a number of barriers to the collisional growth of solids in…

astro-ph.SR2024

Introducing two improved methods for approximating radiative cooling in hydrodynamical simulations of accretion discs

Alison K. Young, Maggie Celeste, Richard A. Booth +4

The evolution of many astrophysical systems depends strongly on the balance between heating and cooling, in particular star formation in giant molecular clouds and the evolution of…

astro-ph.EP2024★ 1 cited

The Role of Drag and Gravity on Dust Concentration in a Gravitationally Unstable Disc

Sahl Rowther, Rebecca Nealon, Farzana Meru +5

We carry out three dimensional smoothed particle hydrodynamics simulations to study the role of gravitational and drag forces on the concentration of large dust grains (St > 1) in…