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dc.contributor.authorJorquera, S.
dc.contributor.authorBonnefoy, M.
dc.contributor.authorBetti, S.
dc.contributor.authorChauvin, G.
dc.contributor.authorBuenzli, E.
dc.contributor.authorPérez, L.M.
dc.contributor.authorFollette, K.B.
dc.contributor.authorHinz, P.M.
dc.contributor.authorBoccaletti, A.
dc.contributor.authorBailey, V.
dc.contributor.authorBiller, B.
dc.contributor.authorDefrère, D.
dc.contributor.authorEisner, J.
dc.contributor.authorHenning, T.
dc.contributor.authorKlahr, H.
dc.contributor.authorLeisenring, J.
dc.contributor.authorOlofsson, J.
dc.contributor.authorSchlieder, J.E.
dc.contributor.authorSkemer, A.J.
dc.contributor.authorSkrutskie, M.F.
dc.contributor.authorVan Boekel, R.
dc.date.accessioned2022-04-11T23:17:56Z
dc.date.available2022-04-11T23:17:56Z
dc.date.issued2022
dc.identifier.citationJorquera, S., Bonnefoy, M., Betti, S., Chauvin, G., Buenzli, E., Pérez, L. M., Follette, K. B., Hinz, P. M., Boccaletti, A., Bailey, V., Biller, B., Defrère, D., Eisner, J., Henning, T., Klahr, H., Leisenring, J., Olofsson, J., Schlieder, J. E., Skemer, A. J., … Van Boekel, R. (2022). Large Binocular Telescope Search for Companions and Substructures in the (Pre)transitional Disk of AB Aurigae. Astrophysical Journal.
dc.identifier.issn0004-637X
dc.identifier.doi10.3847/1538-4357/ac4be4
dc.identifier.urihttp://hdl.handle.net/10150/663933
dc.description.abstractMultiwavelength high-resolution imaging of protoplanetary disks has revealed the presence of multiple, varied substructures in their dust and gas components, which might be signposts of young, forming planetary systems. AB Aurigae bears an emblematic (pre)transitional disk showing spiral structures observed in the inner cavity of the disk in both the submillimeter (Atacama Large Millimeter/submillimeter Array (ALMA); 1.3 mm, 12CO) and near-infrared (Spectro-polarimetric High-contrast Exoplanet Research; 1.5-2.5 μm) wavelengths, which have been claimed to arise from dynamical interactions with a massive companion. In this work, we present new deep K s (2.16 μm) and L′ (3.7 μm) band images of AB Aurigae obtained with the L/M-band Infrared Camera on the Large Binocular Telescope, aimed for the detection of both planetary companions and extended disk structures. No point source is recovered, in particular at the outer regions of the disk, where a putative candidate (ρ = 0.″681, PA = 7.°6) had been previously claimed. The nature of a second innermost planet candidate (ρ = 0.″16, PA = 203.°9) cannot be investigated by the new data. We are able to derive 5σ detection limits in both magnitude and mass for the system, going from 14 M Jup at 0.″3 (49 au) down to 3-4 M Jup at 0.″6 (98 au) and beyond, based on the ATMO 2020 evolutionary models. We detect the inner spiral structures (<0.″5) resolved in both CO and polarimetric H-band observations. We also recover the ring structure of the system at larger separation (0.″5-0.″7) showing a clear southeast/northwest asymmetry. This structure, observed for the first time at L′ band, remains interior to the dust cavity seen at ALMA, suggesting an efficient dust trapping mechanism at play in the disk. © 2022. The Author(s). Published by the American Astronomical Society.
dc.language.isoen
dc.publisherIOP Publishing Ltd
dc.rightsCopyright © 2022. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleLarge Binocular Telescope Search for Companions and Substructures in the (Pre)transitional Disk of AB Aurigae
dc.typeArticle
dc.typetext
dc.contributor.departmentSteward Observatory, University of Arizona
dc.identifier.journalAstrophysical Journal
dc.description.noteOpen access journal
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
dc.eprint.versionFinal published version
dc.source.journaltitleAstrophysical Journal
refterms.dateFOA2022-04-11T23:17:56Z


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Copyright © 2022. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence.
Except where otherwise noted, this item's license is described as Copyright © 2022. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence.