activity
20072026
most citedFrom mean-motion resonances to scattered planets: Producing the Solar System, eccentric exoplanets and Late Heavy Bombardments

64 citations · 138 across the 11 of their papers we have counts for

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Showing astro-ph.EPShow all

8 papers · 1 filter

astro-ph.EP2026

Exoplanet System Architecture: Sculpting the Inner Regions

Mark R. Swain, Geoffrey Bryden, Jonathan C. Tan +14

In this study, we seek to improve our understanding of the competing roles of disk-driven and planet-planet dynamical migration in sculpting planetary system architecture in the in…

astro-ph.EP2026★ 12 cited

The compositions of the HR 8799 planets reflect accretion of both solids and metal-enriched gas

Jerry W. Xuan, Jean-Baptiste Ruffio, Yayaati Chachan +24

With four giant planets (, $T_\rm{eff}\sim900-1200$ K) orbiting between 15-70 au, HR 8799 provides an unparalleled testbed for studying giant planet formatio…

astro-ph.EP2026★ 12 cited

Jupiter-like uniform metal enrichment in a system of multiple giant exoplanets

Jean-Baptiste Ruffio, Jerry W. Xuan, Yayaati Chachan +15

The accretion of icy and rocky solids during the formation of a gas giant planet is poorly constrained and challenging to model. Refractory species, like sulfur, are only present i…

astro-ph.EP2025

Roman coronagraph simulations of exozodi observations in the presence of wavefront errors

Jorge Llop-Sayson, Vanessa P. Bailey, Justin Hom +6

The Coronagraph Instrument on board of the Nancy Grace Roman Space Telescope will demonstrate key technologies that will prepare the ground for the Habitable Worlds Observatory. Th…

astro-ph.EP2025

Searching for Planets Orbiting ~Eridani with JWST/NIRCam

Jorge Llop-Sayson, Charles Beichman, Geoffrey Bryden +10

We present observations of \epseri~with the JWST/NIRCam coronagraph aimed at imaging planets orbiting within this system. In particular, these observations targeted (1) the Jupiter…

astro-ph.EP2025

Probing the Outskirts of M Dwarf Planetary Systems with a Cycle 1 JWST NIRCam Coronagraphy Survey

Ellis Bogat, Joshua E. Schlieder, Kellen D. Lawson +18

The population of giant planets on wide orbits around low-mass M dwarf stars is poorly understood, but the unprecedented sensitivity of JWST NIRCam coronagraphic imaging now provid…