Dust traffic jams in inclined circumbinary protoplanetary discs – I. Morphology and formation theory

Author:

Aly Hossam12ORCID,Gonzalez Jean-François1ORCID,Nealon Rebecca34ORCID,Longarini Cristiano5ORCID,Lodato Giuseppe5ORCID,Price Daniel J6ORCID

Affiliation:

1. Univ Lyon, Univ Claude Bernard Lyon 1, Ens de Lyon, CNRS, Centre de Recherche Astrophysique de Lyon UMR5574, F-69230 Saint-Genis-Laval, France

2. Zentrum für Astronomie der Universität Heidelberg, Astronomisches Rechen-Institut, M’onchhofstr 12-14, D-69120 Heidelberg, Germany

3. Centre for Exoplanets and Habitability, University of Warwick, Coventry CV4 7AL, UK

4. Department of Physics, University of Warwick, Coventry CV4 7AL, UK

5. Università degli Studi di Milano, Dipartimento di Fisica, Via Giovanni Celoria 16, I-20133 Milano, Italy

6. School of Physics and Astronomy, Monash University, Clayton, VIC 3800, Australia

Abstract

ABSTRACT Gas and dust in inclined orbits around binaries experience precession induced by the binary gravitational torque. The difference in precession between gas and dust alters the radial drift of weakly coupled dust and leads to density enhancements where the radial drift is minimized. We explore this phenomenon using 3D hydrodynamical simulations to investigate the prominence of these ‘dust traffic jams’ and the evolution of the resulting dust sub-structures at different disc inclinations and binary eccentricities. We then derive evolution equations for the angular momentum of warped dust discs and implement them in a 1D code and present calculations to further explain these traffic jams. We find that dust traffic jams in inclined circumbinary discs provide significant dust density enhancements that are long lived and can have important consequences for planetesimal formation.

Funder

Horizon 2020

ANR

EPSRC

Swinburne University of Technology

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

Cited by 9 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. WInDI: a Warp-Induced Dust Instability in protoplanetary discs;Monthly Notices of the Royal Astronomical Society;2023-11-13

2. On the conditions for warping and breaking protoplanetary discs;Monthly Notices of the Royal Astronomical Society;2023-08-18

3. The role of the drag force in the gravitational stability of dusty planet-forming disc – II. Numerical simulations;Monthly Notices of the Royal Astronomical Society;2023-05-11

4. Precession and polar alignment of accretion discs in triple (or multiple) stellar systems;Monthly Notices of the Royal Astronomical Society;2023-02-08

5. The Curie line in protoplanetary disks and the formation of Mercury-like planets;Astronomy & Astrophysics;2023-01-27

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