Formation of multiplanetary systems via pebble accretion in externally photoevaporating discs in stellar clusters
Abstract
ABSTRACT In this paper, we investigate how external photoevaporation influences the formation, dynamical evolution and the resultant planetary architecture of multiplanet systems born in stellar clusters. We use a model of N-body simulations of multiple planet formation via pebble accretion coupled with a 1D viscous disc subject to external photoevaporation. We found that external photoevaporation reduces the planet growth by reducing the pebble mass reservoir in discs containing multiple planetary embryos across a wide range of disc masses, and is particularly effective in suppressing planet growth in less initially massive discs (
Fields of Study & Subjects
Astrophysics and Star Formation Studies
Stellar
planetary
and galactic studies
Astronomy and Astrophysical Research
Publication details
- Journal / source
- Monthly Notices of the Royal Astronomical Society
- Publisher
- Oxford University Press (OUP)
- Volume
- 546
- Issue
- 3
- Publication date
- 15 January 2026
- Language
- EN