J/AJ/160/221ivo://CDS.VizieR/J/AJ/160/221doi:10.26093/cds/vizier.51600221CDSClose L.M.2022-06-03T06:16:16Z2021-02-08T09:47:43ZCDS support team

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

cds-question@unistra.frexoplanetsvisible-astronomyh-alpha-photometrystellar-massesWe present a massive accreting gap planet model that ensures large gaps in transitional disks are kept dust free by the scattering action of three coplanar quasi-circular planets in a 1:2:4 mean motion resonance (MMR). This model uses the constraint of the observed gap size, and the dust-free nature of the gap, to determine within ~10% the possible orbits for three massive planets in an MMR. Calculated orbits are consistent with the observed orbits and H{alpha} emission (the brightest line to observe these planets) for LkCa15b, PDS70b, and PDS70c within observational errors. Moreover, the model suggests that the scarcity of detected H{alpha} planets is likely a selection effect of the current limitations of non-coronagraphic, low (<10%) Strehl, H{alpha} imaging with adaptive optics (AO) systems used in past H{alpha} surveys. We predict that as higher Strehl AO systems (with high- performance custom coronagraphs; like the 6.5m Magellan Telescope MagAO-X system) are utilized at H{alpha}, the number of detected gap planets will substantially increase by more than tenfold. For example, we show that >25{+/-}5 new H{alpha} "gap planets" are potentially discoverable by a survey of the best 19 transitional disks with MagAO-X. Detections of these accreting protoplanets will significantly improve our understanding of planet formation, planet growth and accretion, solar system architectures, and planet-disk interactions.2020AJ....160..221Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/160/221CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/179/451 : Predicted IR excesses for protoplanetary disks (Kenyon+, 2008)J/A+A/548/A56 : X-shooter spectra of 12 young stellar objects (Rigliaco+,2012)J/ApJ/869/L41 : DSHARP I. Sample, ALMA obs. log and overview (Andrews+, 2018)J/A+A/622/A156 : A search for accreting young companions (Cugno+, 2019)J/A+A/632/A25 : PDS70 VLT/SPHERE images (Mesa+, 2019)J/ApJ/880/49 : Predictions of giant exoplanet host star's (Hinkel+, 2019)J/A+A/639/A121 : LkCa 15 & 2MASS J16100501-2132318 ALMa images (Facchini+,2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/160/221https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/160/221http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/160/221https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/160/221https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/160/221http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/160/221GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/160/221/table2 (A list of the observed parameters of the large gap transitional disks)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/160/221/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/160/221/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/160/221/table2?GETtext/xml+votable180.050000true173.2732361-54.32459640.0055555555555555566/1029 1050 1081 1114 1169 21418 22861 23549 24277 24279 28762 36948 36956 37186 37978 42605 42970 43415 44049https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/160/221?format=asciiOpticaldefaultJ/AJ/160/221/table2A list of the observed parameters of the large gap transitional disksrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMAGmeta.ref.urlcharSimbadNameSimbad column added by the CDSmeta.idcharnullableNameTransitional disk system namemeta.id;meta.maincharprimaryf_logMdotApproximate flag on logMdotmeta.codecharlogMdot[-10.5/-6.8] log stellar accretion ratelog(solMass.yr**-1)arith.rate;phys.mass.lossfloatRadp[1.3/1.8] Planet radius from COND models(7.1492x10+7m)phys.size.radiusfloatAR[0/2.9] R band extinction towards the starmagphys.absorptionfloatRmag[6.5/13.1] SIMBAD apparent R band magnitudemagphot.mag;em.opt.RfloatDist[104/400] Distancepcpos.distanceintRcav[25/156] Cavity edgeAUstat.fit.paramintMass[0.39/2.56] Stellar masssolMassphys.massfloatLum[0.2/65.1] Stellar luminositysolLumphys.luminosityfloatf_iApproximate flag on imeta.codechari[0/80] Approximate inclination from FVDM imagessrc.orbital.inclinationint_RAPosition from SIMBAD (right ascension part)degpos.eq.ra;meta.mainnullable_DEPosition from SIMBAD (declination part)degpos.eq.dec;meta.mainnullableJ/AJ/160/221/table3The predicted planetary parameters from the MAG model of gap planetsf_DelHa2Flag on DelHa2 (4)meta.codecharNameTransitional disk system namemeta.id;meta.maincharf_NameFlag on Name (1)meta.codechara1[7.47/46.7] First gap orbital semi-major axisAUphys.size.smajAxisfloata2[11.8/74] Second gap orbital semi-major axisAUphys.size.smajAxisfloata3[18.8/117.5] Third gap orbital semi-major axisAUphys.size.smajAxisfloatSep1[0.03/0.26] First gap average projected on-sky separation (2)arcsecpos.angDistance;src.orbitalfloatSep2[0.05/0.41] Second gap average projected on-sky separation (2)arcsecpos.angDistance;src.orbitalfloatSep3[0.07/0.66] Third gap average projected on-sky separation (2)arcsecpos.angDistance;src.orbitalfloatDelHa1[4.88/12.3] First gap planet/star contrast at {Delta}H{alpha} (3)magphot.mag;meta.modelledfloatDelHa2[5.39/13.5] Second gap planet/star contrast at {Delta}H{alpha} (3)magphot.mag;meta.modelledfloatDelHa3[5.89/14] Third gap planet/star contrast at {Delta}H{alpha} (3)magphot.mag;meta.modelledfloatf_DelHa3Flag on DelHa3 (4)meta.codecharMass1[1.56/10.2] First gap planet predicted mass (3)(1.898187x10+27kg)phys.massfloatMass2[0.78/5.12] Second gap planet predicted mass (3)(1.898187x10+27kg)phys.massfloatMass3[0.39/2.56] Third gap planet predicted mass (3)(1.898187x10+27kg)phys.massfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint