activity
20202026
most citedA HARPS-N mass for the elusive Kepler-37d: a case study in disentangling stellar activity and planetary signals

27 citations · 82 across the 13 of their papers we have counts for

collaborators

13 papers

astro-ph.EP2026

From spirals to rings: dust dynamics in gravitoturbulent protoplanetary discs after late infall

Clément Baruteau, Steven Rendon Restrepo, Gaylor Wafflard-Fernandez +7

Substructures appear to be a common trait of all extended protoplanetary discs. They are found notably in discs still surrounded by ambient, possibly infalling material. In this st…

astro-ph.EP2025

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…

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.EP2025

Modelling a Transiting Circumbinary Disc in the HD98800 System

Amena Faruqi, Grant Kennedy, Rebecca Nealon +1

We present synthetic optical light curves of the hierarchical HD98800 quadruple system over a decade-long period when the circumbinary disc encircling the system's B binary is expe…

astro-ph.EP2024

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…

astro-ph.SR2024★ 1 cited

The orbit of HD 142527 B is too compact to explain many of the disc features

M. Nowak, S. Rowther, S. Lacour +3

HD 142527 A is a young and massive Herbig Ae/Be star surrounded by a highly structured disc. The disc shows numerous morphological structures, such as spiral arms, a horseshoe regi…

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…

astro-ph.EP2023

Sandwiched planet formation: restricting the mass of a middle planet

Matthew Pritchard, Farzana Meru, Sahl Rowther +2

We conduct gas and dust hydrodynamical simulations of protoplanetary discs with one and two embedded planets to determine the impact that a second planet located further out in the…

astro-ph.EP2022★ 4 cited

Continuing to Hide Signatures of Gravitational Instability in Protoplanetary Discs with Planets

Sahl Rowther, Rebecca Nealon, Farzana Meru

We carry out three dimensional smoothed particle hydrodynamics simulations to study the impact of planet-disc interactions on a gravitationally unstable protoplanetary disc. We fin…

astro-ph.EP2021★ 13 cited

Warping Away Gravitational Instabilities in Protoplanetary Discs

Sahl Rowther, Rebecca Nealon, Farzana Meru

We perform 3D SPH simulations of warped, non-coplanar gravitationally unstable discs to show that as the warp propagates through the self-gravitating disc, it heats up the disc ren…

astro-ph.EP2021★ 27 cited

A HARPS-N mass for the elusive Kepler-37d: a case study in disentangling stellar activity and planetary signals

V. M. Rajpaul, L. A. Buchhave, G. Lacedelli +22

To date, only 18 exoplanets with radial velocity (RV) semi-amplitudes m/s have had their masses directly constrained. The biggest obstacle to RV detection of such exoplanets i…

astro-ph.EP2020★ 14 cited

Hiding Signatures of Gravitational Instability in Protoplanetary Discs with Planets

Sahl Rowther, Farzana Meru, Grant M. Kennedy +2

We carry out three dimensional SPH simulations to show that a migrating giant planet strongly suppresses the spiral structure in self-gravitating discs. We present mock ALMA contin…

astro-ph.EP2020★ 22 cited

Planet Migration in Self-Gravitating Discs: Survival of Planets

Sahl Rowther, Farzana Meru

We carry out three-dimensional SPH simulations to study whether planets can survive in self-gravitating protoplanetary discs. The discs modelled here use a cooling prescription tha…