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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/60214
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dc.creatorAlice Zurlopt_BR
dc.creatorAntonio Garufipt_BR
dc.creatorSebastián Pérez Marquezpt_BR
dc.creatorFelipe de Oliveira Alvespt_BR
dc.creatorJosep Miquel Girartpt_BR
dc.creatorZhaohuan Zhupt_BR
dc.creatorGabriel Armando Pellegatti Francopt_BR
dc.creatorLauren Ilsedore Cleevespt_BR
dc.date.accessioned2023-10-30T12:23:29Z-
dc.date.available2023-10-30T12:23:29Z-
dc.date.issued2021-
dc.citation.volume912pt_BR
dc.citation.issue1pt_BR
dc.citation.spage1pt_BR
dc.citation.epage9pt_BR
dc.identifier.doihttps://doi.org/10.3847/1538-4357/abec42pt_BR
dc.identifier.issn1538-4357pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/60214-
dc.description.resumoThe presence of planets or substellar objects still embedded in their native protoplanetary disks is indirectly suggested by disk substructures like gaps, cavities, and spirals. However, these companions are rarely detected. We present Very Large Telescope/NACO high-contrast images in the J, H, KS, and $L^{\prime} $ bands of the young star [BHB2007]-1 probing the inclined disk in scattered light and revealing the probable presence of a companion. The point source is detected in the $L^{\prime} $ band in spatial correspondence with complementary Very Large Array observations. This object is constrained to have a mass in the range of 37–47 MJup and is located at 50 au from the central star, inside the 70 au-large disk cavity recently imaged by the Atacama Large Millimeter/submillimeter Array (ALMA), that is absent from our NACO data (down to 20 au). This mass range is compatible with the upper end derived from the size of the ALMA cavity. The NIR disk brightness is highly asymmetric around the minor axis, with the southern side 5.5 times brighter than the northern side. The constant amount of asymmetry across all wavelengths suggests that it is due to a shadow cast by a misaligned inner disk. The massive companion that we detect could, in principle, explain the possible disk misalignment, as well as the different cavity sizes inferred by the NACO and ALMA observations. The confirmation and characterization of the companion is entrusted to future observations.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.format.mimetypepdfpt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE FÍSICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofThe Astrophysical Journal-
dc.rightsAcesso Abertopt_BR
dc.subjectStarspt_BR
dc.subjectProtoplanetary diskspt_BR
dc.subject.otherAstronomiapt_BR
dc.subject.otherEstrelas jovenspt_BR
dc.titleNear-IR observations of the young star [BHB2007]-1: a substellar companion opening the gap in the diskpt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://iopscience.iop.org/article/10.3847/1538-4357/abec42pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-5903-8316pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-4266-0643pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-2953-755Xpt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-7945-064Xpt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-3829-5591pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-3616-6822pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-2020-2649pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-2076-8001pt_BR
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