dc.contributor.author Chachan, Yayaati en dc.contributor.author Booth, Richard en dc.contributor.author Triaud, Amaury HMJ en dc.contributor.author Clarke, Catherine en dc.date.accessioned 2019-10-04T23:30:36Z dc.date.available 2019-10-04T23:30:36Z dc.date.issued 2019-11 en dc.identifier.issn 0035-8711 dc.identifier.uri https://www.repository.cam.ac.uk/handle/1810/297487 dc.description.abstract The presence of planets in binary systems poses interesting problems for planet formation theories, both in cases where planets must have formed in very compact discs around the individual stars and where they are located near the edge of the stable circumbinary region, where in situ formation is challenging. Dust dynamics is expected to play an important role in such systems, since dust trapping at the inner edge of circumbinary discs could aid in situ formation, but would simultaneously starve the circumstellar discs of the solid material needed to form planets. Here we investigate the dynamics of dust in binary systems using Smooth Particle Hydrodynamics. We find that all our simulations tend towards dust trapping in the circumbinary disc, but the timescale on which trapping begins depends on binary mass ratio ($q$) and eccentricity as well as the angular momentum of the infalling material. For $q \gtrsim 0.1$, we find that dust can initially accrete onto the circumstellar discs, but as the circumbinary cavity grows in radius, dust eventually becomes trapped in the circumbinary disc. For $q = 0.01$, we find that increasing the binary eccentricity increases the time required for dust trapping to begin. However, even this longer timescale is likely to be shorter than the planet formation timescale in the inner disc and is insufficient to explain the observed pre-transitional discs. This indicates that increase in companion eccentricity alone is not enough to allow significant transfer of solids from the outer to the inner disc. dc.publisher Oxford University Press dc.rights All rights reserved dc.subject astro-ph.EP en dc.subject astro-ph.EP en dc.subject astro-ph.SR en dc.title Dust accretion in binary systems: implications for planets and transition discs en dc.type Article prism.endingPage 3904 prism.issueIdentifier 3 en prism.publicationDate 2019 en prism.publicationName Monthly Notices of the Royal Astronomical Society en prism.startingPage 3896 prism.volume 489 en dc.identifier.doi 10.17863/CAM.44550 dcterms.dateAccepted 2019-08-28 en rioxxterms.versionofrecord 10.1093/mnras/stz2404 en rioxxterms.version VoR rioxxterms.licenseref.uri http://www.rioxx.net/licenses/all-rights-reserved en rioxxterms.licenseref.startdate 2019-11 en dc.contributor.orcid Booth, Richard [0000-0002-0364-937X] dc.contributor.orcid Clarke, Catherine [0000-0003-4288-0248] dc.identifier.eissn 1365-2966 rioxxterms.type Journal Article/Review en pubs.funder-project-id European Research Council (341137) pubs.funder-project-id STFC (ST/M007065/1) pubs.funder-project-id STFC (ST/M007073/1) pubs.funder-project-id STFC (ST/R00689X/1) pubs.funder-project-id European Commission Horizon 2020 (H2020) Marie Sk?odowska-Curie actions (823823) pubs.funder-project-id STFC (ST/T001550/1) pubs.funder-project-id SCIENCE & TECHNOLOGY FACILITIES COUNCIL (ST/N000927/1) pubs.funder-project-id STFC (ST/S000623/1) cam.issuedOnline 2019-09-02 en dc.identifier.url http://dx.doi.org/10.1093/mnras/stz2404 en
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