OGLE-2018-BLG-1269Lb: A Jovian Planet With A Bright, $I=16$ Host

30 Jun 2020 Jung Youn Kil Gould Andrew Udalski Andrzej Sumi Takahiro Yee Jennifer C. Han Cheongho Albrow Michael D. Chung Sun-Ju Hwang Kyu-Ha Ryu Yoon-Hyun Shin In-Gu Shvartzvald Yossi Zhu Wei Zang Weicheng Cha Sang-Mok Kim Dong-Jin Kim Hyoun-Woo Kim Seung-Lee Lee Chung-Uk Lee Dong-Joo Lee Yongseok Park Byeong-Gon Pogge Richard W. Mróz Przemek Szymański Michał K. Skowron Jan Poleski Radek Soszyński Igor Pietrukowicz Paweł Kozłowski Szymon Ulaczyk Krzystof Rybicki Krzysztof A. Iwanek Patryk Wrona Marcin Abe Fumio Barry Richard Bennett David P. Bond Ian A. Bhattacharya Aparna Donachie Martin Fukui Akihiko Hirao Yuki Itow Yoshitaka Kondo Iona Koshimoto Naoki Li Man Cheung Alex Matsubara Yutaka Miyazaki Shota Muraki Yasushi Nagakane Masayuki Ranc Clément Rattenbury Nicholas~J. Suematsu Haruno Sullivan Denis J. Suzuki Daisuke Tristram Paul J. Yonehara Atsunori

We report the discovery of a planet in the microlensing event OGLE-2018-BLG-1269, with planet-host mass ratio $q \sim 6\times10^{-4}$, i.e., $0.6$ times smaller than the Jupiter/Sun mass ratio. Combined with the $Gaia$ parallax and proper motion, a strong one-dimensional constraint on the microlens parallax vector allows us to significantly reduce the uncertainties of lens physical parameters... (read more)

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Categories


  • SOLAR AND STELLAR ASTROPHYSICS
  • EARTH AND PLANETARY ASTROPHYSICS
  • ASTROPHYSICS OF GALAXIES