Constraints on the Physical Origin of Large Cavities in Transition Disks from Multiwavelength Dust Continuum Emission

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dc.contributor.authorSierra, Anibal
dc.contributor.authorPerez, Laura M.
dc.contributor.authorSotomayor, Benjamin
dc.contributor.authorBenisty, Myriam
dc.contributor.authorChandler, Claire J.
dc.contributor.authorAndrews, Sean
dc.contributor.authorCarpenter, John
dc.contributor.authorHenning, Thomas
dc.contributor.authorTesti, Leonardo
dc.contributor.authorRicci, Luca
dc.contributor.authorWilner, David
dc.date.accessioned2025-01-20T16:05:42Z
dc.date.available2025-01-20T16:05:42Z
dc.date.issued2024
dc.description.abstractThe physical origin of the large cavities observed in transition disks is to date still unclear. Different physical mechanisms (e.g., a companion, dead zones, enhanced grain growth) produce disk cavities of different depth, and the expected spatial distribution of gas and solids in each mechanism is not the same. In this work, we analyze the multiwavelength interferometric visibilities of dust continuum observations obtained with Atacama Large Millimeter/submillimeter Array and Very Large Array for six transition disks: CQTau, UXTau A, LkCa15, RXJ1615, SR24S, and DMTau, and calculate brightness radial profiles, where diverse emission morphology is revealed at different wavelengths. The multiwavelength data are used to model the spectral energy distribution and compute constraints on the radial profile of the dust surface density, maximum grain size, and dust temperature in each disk. They are compared with the observational signatures expected from various physical mechanisms responsible for disk cavities. The observational signatures suggest that the cavities observed in the disks around UXTau A, LkCa15, and RXJ1615 could potentially originate from a dust trap created by a companion. Conversely, in the disks around CQTau, SR24S, DMTau, the origin of the cavity remains unclear, although it is compatible with a pressure bump and grain growth within the cavity.
dc.fuente.origenWOS
dc.identifier.doi10.3847/1538-4357/ad7460
dc.identifier.eissn1538-4357
dc.identifier.issn0004-637X
dc.identifier.urihttps://doi.org/10.3847/1538-4357/ad7460
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/89917
dc.identifier.wosidWOS:001335510600001
dc.issue.numero2
dc.language.isoen
dc.revistaAstrophysical journal
dc.rightsacceso restringido
dc.titleConstraints on the Physical Origin of Large Cavities in Transition Disks from Multiwavelength Dust Continuum Emission
dc.typeartículo
dc.volumen974
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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