J/AJ/154/64ivo://CDS.VizieR/J/AJ/154/64doi:10.26093/cds/vizier.51540064CDSMasuda K.2017-12-13T19:46:44Z2017-11-08T14:52:08ZCDS support team

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

cds-question@unistra.frmultiple-starssolar-system-planetsstellar-radiiI report the discovery of non-transiting close companions to two transiting warm Jupiters (WJs), Kepler-448/KOI-12b (orbital period P=17.9days, radius R_p_=1.23_-0.05_^+0.06^R_Jup_) and Kepler-693/KOI-824b (P=15.4days, R_p_=0.91+/-0.05R_Jup_), via dynamical modeling of their transit timing and duration variations (TTVs and TDVs). The companions have masses of 22_-5_^+7^M_Jup_ (Kepler-448c) and 150_-40_^+60^M_Jup_ (Kepler-693c), and both are on eccentric orbits (e=0.65_-0.09_^+0.13^ for Kepler-448c and e=0.47_-0.06_^+0.11^ for Kepler-693c) with periastron distances of 1.5au. Moderate eccentricities are detected for the inner orbits as well (e=0.34_-0.07_^+0.08^ for Kepler-448b and e=0.2_-0.1_^+0.2^ for Kepler-693b). In the Kepler-693 system, a large mutual inclination between the inner and outer orbits (53_-9_^+7^deg or 134_-10_^+11^deg) is also revealed by the TDVs. This is likely to induce a secular oscillation in the eccentricity of the inner WJ that brings its periastron close enough to the host star for tidal star-planet interactions to be significant. In the Kepler-448 system, the mutual inclination is weakly constrained, and such an eccentricity oscillation is possible for a fraction of the solutions. Thus these WJs may be undergoing tidal migration to become hot Jupiters (HJs), although the migration via this process from beyond the snow line is disfavored by the close-in and massive nature of the companions. This may indicate that WJs can be formed in situ and could even evolve into HJs via high-eccentricity migration inside the snow line.2017AJ....154...64Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/154/64CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/133 : Kepler Input Catalog (Kepler Mission Team, 2009)J/ApJS/225/9 : Kepler TTVs. IX. Full long-cadence data set (Holczer+, 2016)J/ApJS/224/12 : Kepler planetary candidates. VII. 48-month (Coughlin+, 2016)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/154/64https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/154/64http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/154/64https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/154/64https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/154/64http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/154/64GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/154/64/planets (Analyzed planets)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/154/64/planets?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/154/64/planets?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/154/64/planets?GETtext/xml+votable180.050000true297.453729241.01098890.0055555555555555566/14735 14946https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/154/64?format=asciidefaultJ/AJ/154/64/planetsAnalyzed planetsPerPeriod (from Table 3 or 4 in the paper)dtime.perioddoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNamePlanet namemeta.id;meta.maincharprimaryC16Display the data from Coughlin et al. 2016 (Cat. J/ApJS/224/12) within 1.5''meta.ref.urlintnullableH16Display the data from Holczer et al. 2016 (Cat. J/ApJS/225/9) within 1.5''meta.ref.urlintnullableNtNumber of transits (tables 1-2)meta.numberintnullableTDVTransit Duration Variationmeta.ref.urlcharRatioPlanet-to-star radius ratio variationmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPosition from SIMBAD database (right ascension part)degpos.eq.ra;meta.main_DEPosition from SIMBAD database (declination part)degpos.eq.dec;meta.mainJ/AJ/154/64/transitsTransit times, durations, and radius ratios of Kepler-448b (table1), and of Kepler-693b (table2)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNamemeta.id;meta.maincharNum[-1/90] Transit numbermeta.idintTT[128.742/1575.02] Transit time in Barycentric Julian Date (BJD_TDB_-2454833)dtime.epochdoublee_TT[0.0001/0.003] Uncertainty in TT (1)dstat.errorfloatDur[0.091/0.282] Transit durationdtime.durationfloate_Dur[0.0002/0.009] Uncertainty in Dur (1)dstat.errorfloatRp/Rs[0.0882/0.137] Planet-to-star radius ratiophys.size;arith.ratiofloate_Rp/Rs[0.0003/0.008] Uncertainty in ratio (1)stat.errorfloat