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Two Jupiter-mass Planets Discovered by the KMTNet Survey in 2017

MPG-Autoren

Shin,  I. -G.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Ryu,  Y. -H.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Yee,  J. C.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Gould,  A.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Albrow,  M. D.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Chung,  S. -J.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Han,  C.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Hwang,  K. -H.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Jung,  Y. K.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Shvartzvald,  Y.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Zang,  W.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Lee,  C. -U.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Cha,  S. -M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Kim,  D. -J.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Kim,  H. -W.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Kim,  S. -L.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Lee,  Y.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Lee,  D. -J.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Park,  B. -G.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Pogge,  R. W.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Externe Ressourcen

https://ui.adsabs.harvard.edu/abs/2019AJ....157..146S
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Zitation

Shin, I.-.-G., Ryu, Y.-.-H., Yee, J. C., Gould, A., Albrow, M. D., Chung, S.-.-J., et al. (2019). Two Jupiter-mass Planets Discovered by the KMTNet Survey in 2017. The Astronomical Journal, 157.


Zitierlink: https://hdl.handle.net/21.11116/0000-0005-D254-F
Zusammenfassung
We report two microlensing events, KMT-2017-BLG-1038 and KMT-2017-BLG-1146, that are caused by planetary systems. These events were discovered by Korea Microlensing Telescope Network survey observations from the 2017 bulge season. The discovered systems consist of a planet and host star with mass ratios of {5.3}-0.4+0.2 {10}-3 and {2.0}-0.1+0.6 {10}-3, respectively. Based on a Bayesian analysis assuming a Galactic model without stellar remnant hosts, we find that the planet KMT-2017-BLG-1038Lb is a super- Jupiter-mass planet ({M}{{p}} ={2.04}-1.15+2.02 {M}{{J}}) orbiting a mid-M dwarf host ({M}{{h}}={0.37}-0.20+0.36 {M}ȯ ) that is located at {6.01}-1.72+1.27 kpc toward the Galactic bulge. The other planet, KMT-2017-BLG-1146Lb, is a sub-Jupiter-mass planet ({M}{{p}}={0.71}-0.42+0.80 {M}{{J}}) orbiting a mid-M dwarf host ({M}{{h}}={0.33}-0.20+0.36 {M}ȯ ) at a distance of {6.50}-2.00+1.38 kpc toward the Galactic bulge. Both are potentially gaseous planets that are beyond their hosts’ snow lines. These typical microlensing planets will be routinely discovered by second-generation microlensing surveys, rapidly increasing the number of detections.