OGLE-2018-BLG-0799Lb: a <i>q</i> ∼ 2.7 × 10−3 planet with <i>Spitzer</i> parallax

DOI PDF PDF 被引用文献1件 参考文献99件 オープンアクセス
  • Weicheng Zang
    Department of Astronomy and Tsinghua Centre for Astrophysics, Tsinghua University , Beijing 100084, China
  • Yossi Shvartzvald
    Department of Particle Physics and Astrophysics, Weizmann Institute of Science , Rehovot 76100, Israel
  • Andrzej Udalski
    Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, PL-00-478 Warszawa, Poland
  • Jennifer C Yee
    Center for Astrophysics | Harvard & Smithsonian , 60 Garden St,Cambridge, MA 02138, USA
  • Chung-Uk Lee
    Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
  • Takahiro Sumi
    Department of Earth and Space Science, Graduate School of Science, Osaka University , Toyonaka, Osaka 560-0043, Japan
  • Xiangyu Zhang
    Department of Astronomy and Tsinghua Centre for Astrophysics, Tsinghua University , Beijing 100084, China
  • Hongjing Yang
    Department of Astronomy and Tsinghua Centre for Astrophysics, Tsinghua University , Beijing 100084, China
  • Shude Mao
    Department of Astronomy and Tsinghua Centre for Astrophysics, Tsinghua University , Beijing 100084, China
  • Sebastiano Calchi Novati
    IPAC , Mail Code 100-22, Caltech, 1200 E. California Blvd., Pasadena, CA 91125, USA
  • Andrew Gould
    Max-Planck-Institute for Astronomy , Königstuhl 17, D-69117 Heidelberg, Germany
  • Wei Zhu
    Canadian Institute for Theoretical Astrophysics, University of Toronto , 60 St George Street, Toronto, ON M5S 3H8, Canada
  • Charles A Beichman
    IPAC , Mail Code 100-22, Caltech, 1200 E. California Blvd., Pasadena, CA 91125, USA
  • Geoffery Bryden
    Jet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Drive, Pasadena, CA 91109, USA
  • Sean Carey
    IPAC , Mail Code 100-22, Caltech, 1200 E. California Blvd., Pasadena, CA 91125, USA
  • B Scott Gaudi
    Department of Astronomy, Ohio State University , 140 W. 18th Ave., Columbus, OH 43210, USA
  • Calen B Henderson
    IPAC , Mail Code 100-22, Caltech, 1200 E. California Blvd., Pasadena, CA 91125, USA
  • Przemek Mróz
    Division of Physics, Mathematics, and Astronomy, California Institute of Technology , Pasadena, CA 91125, USA
  • Jan Skowron
    Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, PL-00-478 Warszawa, Poland
  • Radoslaw Poleski
    Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, PL-00-478 Warszawa, Poland
  • Michał K Szymański
    Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, PL-00-478 Warszawa, Poland
  • Igor Soszyński
    Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, PL-00-478 Warszawa, Poland
  • Paweł Pietrukowicz
    Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, PL-00-478 Warszawa, Poland
  • Szymon Kozłowski
    Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, PL-00-478 Warszawa, Poland
  • Krzysztof Ulaczyk
    Department of Physics, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL,  UK
  • Krzysztof A Rybicki
    Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, PL-00-478 Warszawa, Poland
  • Patryk Iwanek
    Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, PL-00-478 Warszawa, Poland
  • Marcin Wrona
    Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, PL-00-478 Warszawa, Poland
  • Michael D Albrow
    University of Canterbury, Department of Physics and Astronomy , Private Bag 4800, Christchurch 8020, New Zealand
  • Sun-Ju Chung
    Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
  • Cheongho Han
    Department of Physics, Chungbuk National University , Cheongju 28644, Republic of Korea
  • Kyu-Ha Hwang
    Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
  • Youn Kil Jung
    Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
  • Yoon-Hyun Ryu
    Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
  • In-Gu Shin
    Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
  • Sang-Mok Cha
    Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
  • Dong-Jin Kim
    Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
  • Hyoun-Woo Kim
    Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
  • Seung-Lee Kim
    Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
  • Dong-Joo Lee
    Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
  • Yongseok Lee
    Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
  • Byeong-Gon Park
    Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
  • Richard W Pogge
    Department of Astronomy, Ohio State University , 140 W. 18th Ave., Columbus, OH 43210, USA
  • Ian A Bond
    Institute of Natural and Mathematical Sciences, Massey University , Auckland 0745, New Zealand
  • Fumio Abe
    Institute for Space-Earth Environmental Research, Nagoya University , Nagoya 464-8601, Japan
  • Richard Barry
    Code 667, NASA Goddard Space Flight Center , Greenbelt, MD 20771, USA
  • David P Bennett
    Code 667, NASA Goddard Space Flight Center , Greenbelt, MD 20771, USA
  • Aparna Bhattacharya
    Code 667, NASA Goddard Space Flight Center , Greenbelt, MD 20771, USA
  • Martin Donachie
    Department of Physics, University of Auckland , Private Bag 92019, Auckland, New Zealand
  • Hirosane Fujii
    Department of Earth and Space Science, Graduate School of Science, Osaka University , Toyonaka, Osaka 560-0043, Japan
  • Akihiko Fukui
    Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
  • Yuki Hirao
    Department of Earth and Space Science, Graduate School of Science, Osaka University , Toyonaka, Osaka 560-0043, Japan
  • Yoshitaka Itow
    Institute for Space-Earth Environmental Research, Nagoya University , Nagoya 464-8601, Japan
  • Rintaro Kirikawa
    Department of Earth and Space Science, Graduate School of Science, Osaka University , Toyonaka, Osaka 560-0043, Japan
  • Iona Kondo
    Department of Earth and Space Science, Graduate School of Science, Osaka University , Toyonaka, Osaka 560-0043, Japan
  • Naoki Koshimoto
    Department of Astronomy, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
  • Man Cheung Alex Li
    Department of Physics, University of Auckland , Private Bag 92019, Auckland, New Zealand
  • Yutaka Matsubara
    Institute for Space-Earth Environmental Research, Nagoya University , Nagoya 464-8601, Japan
  • Yasushi Muraki
    Institute for Space-Earth Environmental Research, Nagoya University , Nagoya 464-8601, Japan
  • Shota Miyazaki
    Department of Earth and Space Science, Graduate School of Science, Osaka University , Toyonaka, Osaka 560-0043, Japan
  • Clément Ranc
    Code 667, NASA Goddard Space Flight Center , Greenbelt, MD 20771, USA
  • Nicholas J Rattenbury
    Department of Physics, University of Auckland , Private Bag 92019, Auckland, New Zealand
  • Yuki Satoh
    Department of Earth and Space Science, Graduate School of Science, Osaka University , Toyonaka, Osaka 560-0043, Japan
  • Hikaru Shoji
    Department of Earth and Space Science, Graduate School of Science, Osaka University , Toyonaka, Osaka 560-0043, Japan
  • Daisuke Suzuki
    Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency , 3-1-1 Yoshinodai, Chuo, Sagamihara, Kanagawa, 252-5210, Japan
  • Yuzuru Tanaka
    Department of Earth and Space Science, Graduate School of Science, Osaka University , Toyonaka, Osaka 560-0043, Japan
  • Paul J Tristram
    University of Canterbury Mt. John Observatory , PO Box 56, Lake Tekapo 8770, New Zealand
  • Tsubasa Yamawaki
    Department of Earth and Space Science, Graduate School of Science, Osaka University , Toyonaka, Osaka 560-0043, Japan
  • Atsunori Yonehara
    Department of Physics, Faculty of Science, Kyoto Sangyo University , 603-8555 Kyoto, Japan
  • Etienne Bachelet
    Las Cumbres Observatory Global Telescope Network , 6740 Cortona Drive, suite 102, Goleta, CA 93117, USA
  • Markus P G Hundertmark
    Zentrum für Astronomie der Universität Heidelberg, Astronomisches Rechen-Institut , Mönchhofstr. 12-14, D-69120 Heidelberg, Germany
  • R Figuera Jaimes
    Facultad de Ingeniería y Tecnología, Universidad San Sebastian , General Lagos 1163, Valdivia 5110693, Chile
  • Dan Maoz
    School of Physics and Astronomy, Tel-Aviv University , Tel-Aviv 6997801, Israel
  • Matthew T Penny
    Department of Physics and Astronomy, Louisiana State University , Baton Rouge, LA 70803, USA
  • Rachel A Street
    Las Cumbres Observatory Global Telescope Network , 6740 Cortona Drive, suite 102, Goleta, CA 93117, USA
  • Yiannis Tsapras
    Zentrum für Astronomie der Universität Heidelberg, Astronomisches Rechen-Institut , Mönchhofstr. 12-14, D-69120 Heidelberg, Germany

抄録

<jats:title>ABSTRACT</jats:title> <jats:p>We report the discovery and analysis of a planet in the microlensing event OGLE-2018-BLG-0799. The planetary signal was observed by several ground-based telescopes, and the planet-host mass ratio is q = (2.65 ± 0.16) × 10−3. The ground-based observations yield a constraint on the angular Einstein radius θE, and the microlensing parallax vector $\boldsymbol{{\pi} }_{\rm E}$, is strongly constrained by the Spitzer data. However, the 2019 Spitzer baseline data reveal systematics in the Spitzer photometry, so there is ambiguity in the magnitude of the parallax. In our preferred interpretation, a full Bayesian analysis using a Galactic model indicates that the planetary system is composed of an $M_{\rm planet} = 0.26_{-0.11}^{+0.22}M_{\rm J}$ planet orbiting an $M_{\rm host} = 0.093_{-0.038}^{+0.082}~\mathrm{M}_{\odot }$, at a distance of $D_{\rm L} = 3.71_{-1.70}^{+3.24}$ kpc. An alternate interpretation of the data shifts the localization of the minima along the arc-shaped microlens parallax constraints. This, in turn, yields a more massive host with median mass of $0.13 {\, \mathrm{M}_{\odot }}$ at a distance of 6.3 kpc. This analysis demonstrates the robustness of the osculating circles formalism, but shows that further investigation is needed to assess how systematics affect the specific localization of the microlens parallax vector and, consequently, the inferred physical parameters.</jats:p>

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