J/A+A/649/A90ivo://CDS.VizieR/J/A+A/649/A90doi:10.26093/cds/vizier.36490090CDSHan C.Udalski A.Lee C.-U.Albrow M.D.Chung S.-J.Gould A.,Hwang K.-H.Jung Y.K.Kim D.Kim H.-W.Ryu Y.-H.Shin I.-G.,Shvartzvald Y.Yee J.C.Zang W.Cha S.-M.Kim D.-J.Kim S.-L.,Lee D.-J.Lee Y.Park B.-G.Pogge R.W.Kim C.-H.Kim W.-T.Mroz P.,Szymanski M.K.Skowron J.Poleski R.Soszynski I.Pietrukowicz P.,Kozlowski S.Ulaczyk K.Rybicki K.A.Iwanek P.Wrona M.(The KMTNet Collaboration and The OGLE Collaboration)2021-09-17T07:20:19Z2021-05-18T07:26:45ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetsgravitational-lensingphotometryvisible-astronomyWe aim to find missing microlensing planets hidden in the unanalyzed lensing events of previous survey data. For this purpose, we conduct a systematic inspection of high-magnification microlensing events, with peak magnifications Apeak>~30, in the data collected from high-cadence surveys in and before the 2018 season. From this investigation, we identify an anomaly in the lensing light curve of the event KMT-2018-BLG-1025. The analysis of the light curve indicates that the anomaly is caused by a very low mass-ratio companion to the lens. We identify three degenerate solutions, in which the ambiguity between a pair of solutions (solutions B) is caused by the previously known close-wide degeneracy, and the degeneracy between these and the other solution (solution A) is a new type that has not been reported before. The estimated mass ratio between the planet and host is q~0.8x10^-4^ for the solution A and q~1.6x10^-4^ for the solutions B. From the Bayesian analysis conducted with measured observables, we estimate that the masses of the planet and host and the distance to the lens are (Mp, Mh, DL)~(6.1M_{sun}_, 0.22M_Earth_, 6.7kpc) for the solution A and ~(4.4M_{sun}_, 0.08M_Earth_, 7.5kpc) for the solutions B. The planet mass is in the category of a super-Earth regardless of the solutions, making the planet the eleventh super-Earth planet, with masses lying between those of Earth and the Solar system's ice giants, discovered by microlensing.2021A&A...649A..90Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/649/A90CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/649/A90https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/649/A90http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/649/A90https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/649/A90https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/649/A90http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/649/A90GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tap2.367228618189496e-19 2.6706780932288093e-19OpticaldefaultJ/A+A/649/A90/iogleiOGLE observed I-band light curveImagI magnitudemagphot.mag;em.opt.IfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateHelicoentric Julian date (HJD-2450000)dtime.epochdoublee_Imagrms uncertainty in Imagmagstat.error;phot.magfloatJ/A+A/649/A90/ikmta1iKMTA1 model I-band light curverecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateHelicoentric Julian date (HJD-2450000)dtime.epochdoubleImagI magnitudemagphot.mag;em.opt.Ifloate_Imagrms uncertainty in Imagmagstat.error;phot.magfloatJ/A+A/649/A90/ikmta2iKMTA2 model I-band light curverecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateHelicoentric Julian date (HJD-2450000)dtime.epochdoubleImagI magnitudemagphot.mag;em.opt.Ifloate_Imagrms uncertainty in Imagmagstat.error;phot.magfloatJ/A+A/649/A90/ikmtc1iKMTC1 model I-band light curverecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateHelicoentric Julian date (HJD-2450000)dtime.epochdoubleImagI magnitudemagphot.mag;em.opt.Ifloate_Imagrms uncertainty in Imagmagstat.error;phot.magfloatJ/A+A/649/A90/ikmtc2iKMTC2 model I-band light curverecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateHelicoentric Julian date (HJD-2450000)dtime.epochdoubleImagI magnitudemagphot.mag;em.opt.Ifloate_Imagrms uncertainty in Imagmagstat.error;phot.magfloatJ/A+A/649/A90/ikmts1iKMTS1 model I-band light curverecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateHelicoentric Julian date (HJD-2450000)dtime.epochdoubleImagI magnitudemagphot.mag;em.opt.Ifloate_Imagrms uncertainty in Imagmagstat.error;phot.magfloatJ/A+A/649/A90/ikmts2iKMTS2 model I-band light curverecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateHelicoentric Julian date (HJD-2450000)dtime.epochdoubleImagI magnitudemagphot.mag;em.opt.Ifloate_Imagrms uncertainty in Imagmagstat.error;phot.magfloat