publication . Article . Preprint . 2017

An opening criterion for dust gaps in protoplanetary discs

Dipierro, Giovanni; Laibe, Guillaume;
Open Access English
  • Published: 21 Apr 2017 Journal: Monthly Notices of the Royal Astronomical Society, volume 469, issue 2, pages 1,932-1,948 (issn: 0035-8711, eissn: 1365-2966, Copyright policy)
Abstract
We aim to understand under which conditions a low mass planet can open a gap in viscous dusty protoplanetary discs. For this purpose, we extend the theory of dust radial drift to include the contribution from the tides of an embedded planet and from the gas viscous forces. From this formalism, we derive i) a grain size-dependent criterion for dust gap opening in discs, ii) an estimate of the location of the outer edge of the dust gap and iii) an estimate of the minimum Stokes number above which low-mass planets are able to carve gaps which appear only in the dust disc. These analytical estimates are particularly helpful to appraise the minimum mass of an hypothe...
Subjects
arxiv: Astrophysics::Galaxy AstrophysicsAstrophysics::Earth and Planetary Astrophysics
free text keywords: Astrophysics - Solar and Stellar Astrophysics
Funded by
EC| BuildingPlanS
Project
BuildingPlanS
Building planetary systems: linking architectures with formation
  • Funder: European Commission (EC)
  • Project Code: 681601
  • Funding stream: H2020 | ERC | ERC-COG
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publication . Article . Preprint . 2017

An opening criterion for dust gaps in protoplanetary discs

Dipierro, Giovanni; Laibe, Guillaume;