J/MNRAS/488/L12ivo://CDS.VizieR/J/MNRAS/488/L12doi:10.26093/cds/vizier.74889012CDSNayakshin S.Dipierro G.Szulagyi J.2024-08-20T20:12:31Z2023-01-23T13:37:12ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetsstellar-agesmillimeter-astronomysubmillimeter-astronomyyoung-stellar-objectsDue to recent high-resolution ALMA observations, there is an accumulating evidence for presence of giant planets with masses from ~0.01M_J_ to a few M_J_ with separations up to 100au in the annular structures observed in young protoplanetary discs. We point out that these observations set unique 'live' constraints on the process of gas accretion on to sub-Jovian planets that were not previously available. Accordingly, we use a population synthesis approach in a new way: we build time-resolved models and compare the properties of the synthetic planets with the ALMA data at the same age. Applying the widely used gas accretion formulae leads to a deficit of sub-Jovian planets and an overabundance of a few Jupiter mass planets compared to observations. We find that gas accretion rate on to planets needs to be suppressed by about an order of magnitude to match the observed planet mass function. This slower gas giant growth predicts that the planet mass should correlate positively with the age of the protoplanetary disc, albeit with a large scatter. This effect is not clearly present in the ALMA data but may be confirmed in the near future with more observations.2019MNRAS.488L..12Nhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/488/L12CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/869/L41 : DSHARP I. Sample, ALMA obs. log and overviewJ/ApJ/869/L42 : DSHARP. II. Annular substructures data (Huang+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/488/L12https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/488/L12http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/488/L12https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/488/L12https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/488/L12http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/488/L12GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/488/L12/table1 (Masses, separation, and ages of the ALMA candidate planets that we use here)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/488/L12/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/488/L12/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/488/L12/table1?GETtext/xml+votable180.050000true65.489205328.44320970.0055555555555555566/1031 1048 1051-1052 1063 1073 1075 1113 1124 1169 23549 28762 28921 30741 38382 42737 42981 43415 44317 44362https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/488/L12?format=asciiMillimeterdefaultJ/MNRAS/488/L12/table1Masses, separation, and ages of the ALMA candidate planets that we use hereSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharAgeStar ageMyrtime.agefloatSepGap location (1)AUpos.angDistance;src.orbitalfloatMplanetInferred planet mass (2)(1.898187x10+27kg)phys.massfloat_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main