J/AJ/159/116ivo://CDS.VizieR/J/AJ/159/116doi:10.26093/cds/vizier.51590116CDSZhang X.Zang W.Udalski A.Gould A.Ryu Y.-H.Wang T.Yang H.,Mao S.Mroz P.Skowron J.Poleski R.Szymanski M.K.Soszynski I.,Pietrukowicz P.KozloGwski S.Ulaczyk K.Albrow M.D.Chung S.-J.,Han C.Hwang K.-H.Jung Y.K.Shin I.-G.Shvartzvald Y.Yee J.C.,Zhu W.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.2020-10-07T12:55:52Z2020-05-14T13:52:15ZCDS support team

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

cds-question@unistra.frgravitational-lensingexoplanetsinfrared-photometryvisible-astronomyphotometryWe report the discovery and the analysis of the short (t_E_<5days) planetary microlensing event, OGLE-2015-BLG-1771. The event was discovered by the Optical Gravitational Lensing Experiment, and the planetary anomaly (at I~19) was captured by The Korea Microlensing Telescope Network. The event has three surviving planetary models that explain the observed light curves, with planet-host mass ratio q~5.4x10^-3^, 4.5x10^-3^ and 4.5x10^-2^, respectively. The first model is the best-fit model, while the second model is disfavored by {Delta}_{chi}^2^_~3. The last model is strongly disfavored by {Delta}_{chi}^2^_~15 but not ruled out. A Bayesian analysis using a Galactic model indicates that the first two models are probably composed of a Saturn-mass planet orbiting a late M dwarf, while the third one could consist of a super-Jovian planet and a mid-mass brown dwarf. The source-lens relative proper motion is {mu}_rel_~9mas/yr, so the source and lens could be resolved by current adaptive-optics instruments in 2020 if the lens is luminous.2020AJ....159..116Zhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/159/116CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/AcA/50/421 : OGLE-II DIA BUL_SC1 field (Wozniak, 2000)J/other/Nat/481.167 : 2002-2007 PLANET microlensing events (Assan+, 2012)J/A+A/549/A147 : Abundances microlensed bulge dwarf stars.V. (Bensby+,2013)J/MNRAS/457/4089 : Frequency of snowline-region planets (Shvartzvald+, 2016)J/AJ/154/210 : 2015 high-cadence Spitzer microlensing events (Zhu+, 2017)J/A+A/617/A135 : 20 years of photometric microlensing (Mustill+, 2018)J/A+A/618/A44 : Predicted microlensing events from Gaia DR2 (Bramich, 2018)J/AcA/68/183 : Microlensing Events for 21st Century (Bramich+, 2018)J/A+A/627/A49 : Teegarden's Star RV and H{alpha} curves (Zechmeister+,2019)J/ApJS/244/29 : Microlensing events toward the Galactic bulge (Mroz+, 2019)J/A+A/633/A98 : Gaia16aye microlensing event photometry (Wyrzykowski+,2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/159/116https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/159/116http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/159/116https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/159/116https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/159/116http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/159/116GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/AJ/159/116/kmtnetKMTNet light curves datarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObsKMTA: Siding Spring Observatory, Australia; KMTC: Cerro Tololo Interamerican Observatory, Chile or KMTS: South African Astronomical Observatory, South Africameta.id;instr.obstycharHJD[7056.8/7316] Heliocentric Julian Date; HJD-2450000dtime.epochdoubledelta[-1799193/253464] Delta fluxphot.flux.densitydoublee_delta[124/60676] Uncertainty in deltastat.error;phot.flux.densitydoubleFWHM[-1/14.4] Seeing full width at half maximumarcsecinstr.obsty.seeingfloatSky[194/40595] Sky brightnessct/sphot.mag.sbintAirmass[1/1.95] Airmass (secz)obs.airMassfloatJ/AJ/159/116/ogleOGLE (Las Campanas Observatory, Chile) I band light curverecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJD[2455260/2458426] Heliocentric Julian Datedtime.epochdoubleImag[19.12/22.07] OGLE I band magnitude (1)magphot.mag;em.opt.Ifloate_Imag[0.04/1.89] Uncertainty in Imagmagstat.error;phot.magfloat