OGLE/KMTNet light curve for OGLE-2019-BLG-1180

We report on the discovery and analysis of the planetary microlensing event OGLE-2019-BLG-1180 with a planet-to-star mass ratio q~0.003. The event OGLE-2019-BLG-1180 has unambiguous cusp-passing and caustic-crossing anomalies, which were caused by a wide planetary caustic with s~2, where s is the star-planet separation in units of the angular Einstein radius {Teta}E. Thanks to well-covered anomalies by the Korea Micorolensing Telescope Network (KMTNet), we measure both the angular Einstein radius and the microlens parallax in spite of a relatively short event timescale of t_E_=28 days. However, because of a weak constraint on the parallax, we conduct a Bayesian analysis to estimate the physical lens parameters. We find that the lens system is a super-Jupiter-mass planet of M_p_=1.75_-0.51_^+0.53^M_J_ orbiting a late-type star of M_h_=0.55_-0.26_^+0.27^M{sun} at a distance D_L_=6.1_-1.3_^+0.9^kpc. The projected star-planet separation is a{perp}=5.19_-1.23_^+0.90^au, which means that the planet orbits at about four times the snow line of the host star. Considering the relative lens-source proper motion of {mu}rel=6mas/yr, the lens will be separated from the source by 60mas in 2029. At that time one can measure the lens flux from adaptive optics imaging of Keck or a next-generation 30m class telescope. OGLE-2019-BLG-1180Lb represents a growing population of wide-orbit planets detected by KMTNet, so we also present a general investigation into prospects for further expanding the sample of such planets.

Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/AJ/166/253
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/166/253
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/166/253
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/AJ/166/253
Creator Chung S.-J.; Udalski A.; Yee J.C.; Gould A.; (the Leading Authors),Albrow M.D.; Jung Y.K.; Hwang K.-H.; Han C.; Ryu Y.-H.; Shin I.-G.,Shvartzvald Y.; Yang H.; Zang W.; Cha S.-M.; Kim D.-J.; Kim S.-L.,Lee C.-U.; Lee D.-J.; Lee Y.; Park B.-G.; Pogge R.W.,(the Kmtnet Collaboration); Poleski R.; Mroz P.; Skowron J.,Szymanski M.K.; Soszynski I.; Pietrukowicz P.; Kozlowski S.; Ulaczyk K.,Rybicki K.A.; Iwanek P.; Wrona M.; Gromadzki M.; (the Ogle Collaboration)
Publisher CDS
Publication Year 2024
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Resource Type Dataset; AstroObjects
Discipline Astrophysical Processes; Astrophysics and Astronomy; Exoplanet Astronomy; Interdisciplinary Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy