J/ApJ/891/3ivo://CDS.VizieR/J/ApJ/891/3doi:10.26093/cds/vizier.18910003CDSZang W.Shvartzvald Y.Wang T.Udalski A.Lee C.-U.Sumi T.,Skottfelt J.Li S.-S.Mao S.Zhu W.Yee J.C.Calchi Novati S.,Beichman C.A.Bryden G.Carey S.Gaudi B.S.Henderson C.B.Mroz P.,Skowron J.Poleski R.Szymanski M.K.Soszynski I.Pietrukowicz P.,Kozlowski S.Ulaczyk K.Rybicki K.A.Iwanek P.Bachelet E.,Christie G.Green J.Hennerley S.Maoz D.Natusch T.Pogge R.W.,Street R.A.Tsapras Y.Albrow M.D.Chung S.-J.Gould A.Han C.,Hwang K.-H.Jung Y.K.Ryu Y.-H.Shin I.-G.Cha S.-M.Kim D.-J.,Kim H.-W.Kim S.-L.Lee D.-J.Lee Y.Park B.-G.Bond I.A.Abe F.,Barry R.Bennett D.P.Bhattacharya A.Donachie M.Fukui A.Hirao Y.,Itow Y.Kondo I.Koshimoto N.Alex Li M.C.Matsubara Y.Muraki Y.,Miyazaki S.Nagakane M.Ranc C.Rattenbury N.J.Suematsu H.,Sullivan D.J.Suzuki D.Tristram P.J.Yonehara A.Dominik M.,Hundertmark M.Jorgensen U.G.Rahvar S.Sajadian S.Snodgrass C.,Bozza V.Burgdorf M.J.Evans D.F.Jaimes R.F.Fujii Y.I.Mancini L.,Longa-Pena P.Helling C.Peixinho N.Rabus M.Southworth J.,Unda-Sanzana E.von Essen C.2022-01-17T12:32:54Z2021-09-01T14:40:08ZCDS support team

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

cds-question@unistra.frgravitational-lensinginfrared-photometryvisible-astronomyphotometryWe report the mass and distance measurements of two single-lens events from the 2017 Spitzer microlensing campaign. The ground-based observations yield the detection of finite-source effects, and the microlens parallaxes are derived from the joint analysis of ground-based observations and Spitzer observations. We find that the lens of OGLE-2017-BLG-1254 is a 0.60+/-0.03M_{sun}_ star with DLS=0.53+/-0.11kpc, where DLS is the distance between the lens and the source. The second event, OGLE-2017-BLG-1161, is subject to the known satellite parallax degeneracy, and thus is either a 0.51_-0.10_^+0.12^M_{sun}_ star with DLS=0.40+/-0.12kpc or a 0.38_-0.12_^+0.13^M_{sun} star with DLS=0.53+/-0.19kpc. Both of the lenses are therefore isolated stars in the Galactic bulge. By comparing the mass and distance distributions of the eight published Spitzer finite- source events with the expectations from a Galactic model, we find that the Spitzer sample is in agreement with the probability of finite-source effects occurring in single-lens events.2020ApJ...891....3Zhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/891/3CatalogResearchIsServedByTAP VizieR generic servicerelated-toII/337 : VISTA Variables in the Via Lactea Survey DR1 (Saito+, 2012)J/AJ/119/1448 : Improved properties for cool stars (Houdashelt+, 2000)J/AcA/50/421 : OGLE-II DIA BUL_SC1 field (Wozniak, 2000)J/A+A/529/A75 : Limb-darkening coefficients (Claret+, 2011)J/ApJ/814/92 : Spitzer IRAC events in crowded fields (Calchi+, 2015)J/MNRAS/458/3012 : OGLE-III Parallax microlensing events (Wyrzykowski+, 2016)J/AJ/154/210 : 2015 high-cadence Spitzer microlensing events (Zhu+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/891/3https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/891/3http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/891/3https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/891/3https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/891/3http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/891/3GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/ApJ/891/3/fig1The light curves of event OGLE-2017-BLG-1161Obs[1/9] Observation code (1)meta.code;obsintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJD[5288.86/8248.71] Heliocentric Julian Date; HJD-2450000dtime.epochdoubleFlux[12.65/179.24] Observed fluxphot.flux.densitydoublee_Flux[0.0027/0.32] Uncertainty in Fluxstat.error;phot.fluxdoublex_FluxFlux units (2)meta.unit;phot.fluxcharJ/ApJ/891/3/fig2The light curves of event OGLE-2017-BLG-1254x_FluxFlux units (3)meta.unit;phot.fluxcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObs[1/14] Observation code (1)meta.code;obsintHJD[5288.85/8058.89] Heliocentric Julian Date; HJD-2450000 (2)dtime.epochdoubleindexedFlux[-110767/179941.4] Observed fluxphot.flux.densitydoublee_Flux[0.0013/999.4] Uncertainty in Fluxstat.error;phot.fluxdouble