J/AJ/162/163ivo://CDS.VizieR/J/AJ/162/163doi:10.26093/cds/vizier.51620163CDSZang W.Hwang K.-H.Udalski A.Wang T.Zhu W.Sumi T.Yee J.C.,Gould A.Mao S.Zhang X.Albrow M.D.Chung S.-J.Han C.Jung Y.K.,Ryu Y.-H.Shin I.-G.Shvartzvald Y.Cha S.-M.Kim D.-J.Kim H.-W.,Kim S.-L.Lee C.-U.Lee D.-J.Lee Y.Park B.-G.Pogge R.W.Mroz P.,Skowron J.Poleski R.Szymanski M.K.Soszynski I.Pietrukowicz P.,Kozlowski S.Ulaczyk K.Rybicki K.A.Iwanek P.Wrona M.Gromadzki M.,Bond I.A.Abe F.Barry R.Bennett D.P.Bhattacharya A.Donachie M.,Fujii H.Fukui A.Hirao Y.Itow Y.Kirikawa R.Kondo I.Koshimoto N.,Li M.C.A.Matsubara Y.Muraki Y.Miyazaki S.Olmschenk G.Ranc C.,Rattenbury N.J.Satoh Y.Shoji H.Ishitani Silva S.Suzuki D.,Tanaka Y.Tristram P.J.Yamawaki T.Yonehara A.Beichman C.A.,Bryden G.Calchi Novati S.Carey S.Gaudi B.S.Henderson C.B.,Johnson S.2022-03-14T06:36:47Z2022-01-06T13:13:33ZCDS support team

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

cds-question@unistra.frexoplanetsgravitational-lensinginfrared-photometryIn order to exhume the buried signatures of "missing planetary caustics" in Korea Microlensing Telescope Network (KMTNet) data, we conducted a systematic anomaly search of the residuals from point-source point-lens fits, based on a modified version of the KMTNet EventFinder algorithm. This search revealed the lowest-mass-ratio planetary caustic to date in the microlensing event OGLE-2019-BLG-1053, for which the planetary signal had not been noticed before. The planetary system has a planet-host mass ratio of q=(1.25{+/-}0.13)x10^-5^. A Bayesian analysis yielded estimates of the mass of the host star, M_host_=0.61_-0.24_^+0.29^M{sun}, the mass of its planet, M_planet_=2.48_-0.98_^+1.19^M{Earth}, the projected planet-host separation, a_perp_=3.4_-0.5_^+0.5^au, and the lens distance, D_L_=6.8_-0.9_^+0.6^kpc. The discovery of this very-low-mass-ratio planet illustrates the utility of our method and opens a new window for a large and homogeneous sample to study the microlensing planet-host mass ratio function down to q~10^-5^.2021AJ....162..163Zhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/162/163CatalogResearchIsServedByTAP VizieR generic servicerelated-toI/337 : Gaia DR1 (Gaia Collaboration, 2016)I/345 : Gaia DR2 (Gaia Collaboration, 2018)J/AcA/50/421 : OGLE-II DIA BUL_SC1 field (Wozniak, 2000)J/A+A/529/A102 : MOA-2007-BLG-387Lb light curve I band (Batista+, 2011)J/other/Nat/481.167 : 2002-2007 PLANET microlensing events (Assan+, 2012)J/A+A/549/A147 : Abundances of microlensed bulge dwarf stars. V. (Bensby+,2013)J/ApJ/783/130 : Parallaxes of high mass star forming regions (Reid+, 2014)J/ApJ/814/92 : Spitzer IRAC events observed in crowded fields (Calchi+, 2015)J/MNRAS/457/4089 : Frequency of snowline-region planets (Shvartzvald+, 2016)J/A+A/605/A89 : Abundances microlensed Bulge dwarf stars. VI. (Bensby+, 2017)J/AJ/154/210 : 2015 high-cadence Spitzer microlensing events (Zhu+, 2017)J/AJ/160/74 : Optical and IR photometry of OGLE-2017-BLG-0406 (Hirao+, 2020)J/AJ/160/255 : KMTNet & OGLE I-band photo. of KMT-2019-BLG-0842 (Jung+, 2020)J/AJ/159/116 : I-band light curves of OGLE-2015-BLG-1771Lb (Zhang+, 2020)J/A+A/649/A90 : KMT-2018-BLG-1025Lb I light curve (Han+, 2021)J/AJ/162/17 : KMTNet, MOA, OGLE light curve of KMT-2019-BLG-0371 (Kim+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/162/163https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/162/163http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/162/163https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/162/163https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/162/163http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/162/163GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tap-2.439715709817298e-18 2.903888696868909e-18InfrareddefaultJ/AJ/162/163/fig3Combined table from original tablesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintInstrInstrument usedmeta.id;instrcharHJDHeliocentric Julian Date, HJD-2450000dtime.epochdoublefluxDelta fluxphot.flux.density;em.opt.Idoublee_fluxUncertainty in fluxstat.error;phot.fluxdoubleFWHMSeeing full width at half maximumarcsecinstr.obsty.seeingfloatSkySky brightnessct/sphot.flux.sbintAMassAirmassobs.airMassfloatJ/AJ/162/163/ogleiOGLE I band light curverecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJD[2455260/2458788] Heliocentric Julian Datedtime.epochdoubleImag[17.9/18.8] Apparent I band magnitude (1)magphot.flux.density;em.opt.Ifloate_Imag[0.01/0.2] Uncertainty in Imagmagstat.error;phot.magfloatJ/AJ/162/163/fig7Observed Spitzer data in instrumental-flux unitsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJD[8685/8712] Heliocentric Julian Date, HJD-2450000dtime.epochdoubleflux[1.95/4.61] Spitzer/IRAC 3.6micron instrumental fluxphot.flux.density;em.IR.3-4umdoublee_flux[0.08/0.1] Uncertainty in fluxstat.error;phot.fluxdouble