J/other/Univ/10.ivo://CDS.VizieR/J/other/Univ/10.465CDSXie C.Xie C.Ren B.B.Benisty M.Ginski C.Fang T.Casassus S.,Bae J.Facchini S.Menard F.van Holstein R.G.2025-02-24T13:46:50Z2024-12-27T08:54:20ZCDS support team

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

cds-question@unistra.frinterstellar-mediumvisible-astronomyinfrared-astronomyIn the early stages of planetary system formation, young exoplanets gravitationally interact with their surrounding environments and leave observable signature on protoplanetary disks. Among these structures, a pair of nearly symmetric spiral arms can be driven by a giant protoplanet. For the double-spiraled SAO 206462 protoplanetary disk, we obtained three epochs of observations spanning 7yr using the Very Large Telescope's SPHERE instrument in near-infrared J-band polarized light. By jointly measuring the motion of the two spirals at three epochs, we obtained a rotation rate of -0.85+/-0.05 deg per year. This rate corresponds to a protoplanet at 66+/-3au on a circular orbit dynamically driving both spirals. The derived location agrees with the gap in ALMA dust-continuum observations, indicating that the spiral driver may also carve the observed gap. What is more, a dust filament at ~63 au observed by ALMA coincides with the predicted orbit of the spiral-arm-driving protoplanet. This double-spiraled system is an ideal target for protoplanet imaging.2024Univ....10.465Xhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/Univ/10.465CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/560/A105 : SAO 206462 polarised Ks image (Garufi+, 2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/Univ/10.465https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/Univ/10.465http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/Univ/10.465https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/Univ/10.465https://vizier.iucaa.in/viz-bin/votable?-source=J/other/Univ/10.465http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/Univ/10.465GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/other/Univ/10.465/list (List of fits images)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/Univ/10.465/list?https://vizier.iucaa.in/viz-bin/conesearch/J/other/Univ/10.465/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/Univ/10.465/list?GETtext/xml+votable180.050000true228.951875-37.154450.005555555555555556Associated datahttps://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/other/Univ/10.4656/44049https://cdsarc.cds.unistra.fr/viz-bin/moc/J/other/Univ/10.465?format=asciiOpticalInfrareddefaultJ/other/Univ/10.465/listList of fits imagesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharRAJ2000Right Ascension of center (J2000)pos.eq.ra;meta.mainDEJ2000Declination of center (J2000)pos.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.fitschar