Flyby-induced misalignments in planet-hosting discs

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dc.contributor.authorNealon, Rebecca
dc.contributor.authorCuello, Nicolas
dc.contributor.authorAlexander, Richard
dc.date.accessioned2025-01-23T19:54:42Z
dc.date.available2025-01-23T19:54:42Z
dc.date.issued2020
dc.description.abstractWe now have several observational examples of misaligned broken protoplanetary discs, where the disc inner regions are strongly misaligned with respect to the outer disc. Current models suggest that this disc structure can be generated with an internal misaligned companion (stellar or planetary), but the occurrence rate of these currently unobserved companions remains unknown. Here we explore whether a strong misalignment between the inner and outer disc can be formed without such a companion. We consider a disc that has an existing gap - essentially separating the disc into two regions - and use a flyby to disturb the discs, leading to a misalignment. Despite considering the most optimistic parameters for this scenario, we find maximum misalignments between the inner and outer disc of similar to 45 degrees and that these misalignments are short-lived. We thus conclude that the currently observed misaligned discs must harbour internal, misaligned companions.
dc.fuente.origenWOS
dc.identifier.doi10.1093/mnras/stz3186
dc.identifier.eissn1365-2966
dc.identifier.issn0035-8711
dc.identifier.urihttps://doi.org/10.1093/mnras/stz3186
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/100694
dc.identifier.wosidWOS:000512306500075
dc.issue.numero3
dc.language.isoen
dc.pagina.final4115
dc.pagina.inicio4108
dc.revistaMonthly notices of the royal astronomical society
dc.rightsacceso restringido
dc.subjecthydrodynamics
dc.subjectmethods: numerical
dc.subjectplanets and satellites: formation
dc.subjectprotoplanetary discs
dc.titleFlyby-induced misalignments in planet-hosting discs
dc.typeartículo
dc.volumen491
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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