J/MNRAS/515/6109ivo://CDS.VizieR/J/MNRAS/515/6109doi:10.26093/cds/vizier.75156109CDSHammond I.Christiaens V.Price D.J.Ubeira-Gabellini M.G.Baird J.,Calcino J.Benisty M.Lodato G.Testi L.Pinte C.Toci C.Fedele D.2024-08-22T20:16:13Z2023-02-23T12:13:29ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.fryoung-stellar-objectsprotostarsexoplanetsinfrared-astronomyWe present new high-contrast images in near-infrared wavelengths ({lambda}_c_ = 1.04, 1.24, 1.62, 2.18, and 3.78 um) of the young variable star CQ Tau, aiming to constrain the presence of companions in the protoplanetary disc. We reached a Ks-band contrast of 14 mag with SPHERE/IRDIS at separations greater than 0.4' from the star. Our mass sensitivity curve rules out giant planets above 4M_Jup_ immediately outside the spiral arms at ~60au and above 2-3M_Jup_ beyond 100au to 5{sigma} confidence assuming hot-start models. We do, however, detect four spiral arms, a double-arc and evidence for shadows in scattered light cast by a misaligned inner disc. Our observations may be explained by an unseen close-in companion on an inclined and eccentric orbit. Such a hypothesis would also account for the disc CO cavity and disturbed kinematics.2022MNRAS.515.6109Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/515/6109CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/648/A19 : Spiral structure in the gas disc of CQ Tau (Woelfer+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/515/6109https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/515/6109http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/515/6109https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/515/6109https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/515/6109http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/515/6109GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/515/6109/list (List of fits images)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/515/6109/list?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/515/6109/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/515/6109/list?GETtext/xml+votable180.050000true83.9936224.748240.005555555555555556Associated datahttps://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/MNRAS/515/61096/24277https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/515/6109?format=asciiInfrareddefaultJ/MNRAS/515/6109/listList of fits imagesObs.dateObservation datetime.epoch;obsnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension of center (J2000)degpos.eq.ra;meta.mainDEJ2000Declination of center (J2000)degpos.eq.dec;meta.mainNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintsizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitsAssocDataAssociated Data web pagemeta.ref.urlchar