OGLE/KMTNet light curve for OGLE-2019-BLG-1180 Virtual Observatory Resource

Authors
  1. Chung S.-J.
  2. Udalski A.
  3. Yee J.C.
  4. Gould A.
  5. (the Leading Authors),Albrow M.D.
  6. Jung Y.K.
  7. Hwang K.-H.
  8. Han C.
  9. Ryu Y.-H.
  10. Shin I.-G.,Shvartzvald Y.
  11. Yang H.
  12. Zang W.
  13. Cha S.-M.
  14. Kim D.-J.
  15. Kim S.-L.,Lee C.-U.
  16. Lee D.-J.
  17. Lee Y.
  18. Park B.-G.
  19. Pogge R.W.,(the Kmtnet Collaboration)
  20. Poleski R.
  21. Mroz P.
  22. Skowron J.,Szymanski M.K.
  23. Soszynski I.
  24. Pietrukowicz P.
  25. Kozlowski S.
  26. Ulaczyk K.,Rybicki K.A.
  27. Iwanek P.
  28. Wrona M.
  29. Gromadzki M.
  30. (the Ogle Collaboration)
  31. Published by
    CDS
Abstract

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.

Keywords
  1. gravitational-lensing
  2. exoplanets
  3. late-type-stars
  4. visible-astronomy
  5. spectroscopy
Bibliographic source Bibcode
2023AJ....166..253C
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/166/253
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/166/253

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/166/253
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/166/253
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/166/253
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History

2024-04-26T07:15:18Z
Resource record created
2024-04-26T07:15:18Z
Created
2024-05-13T06:29:13Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr