OGLE-2018-BLG-0799Lb: a <i>q</i> ∼ 2.7 × 10−3 planet with <i>Spitzer</i> parallax
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- Weicheng Zang
- Department of Astronomy and Tsinghua Centre for Astrophysics, Tsinghua University , Beijing 100084, China
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- Yossi Shvartzvald
- Department of Particle Physics and Astrophysics, Weizmann Institute of Science , Rehovot 76100, Israel
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- Andrzej Udalski
- Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, PL-00-478 Warszawa, Poland
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- Jennifer C Yee
- Center for Astrophysics | Harvard & Smithsonian , 60 Garden St,Cambridge, MA 02138, USA
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- Chung-Uk Lee
- Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
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- Takahiro Sumi
- Department of Earth and Space Science, Graduate School of Science, Osaka University , Toyonaka, Osaka 560-0043, Japan
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- Xiangyu Zhang
- Department of Astronomy and Tsinghua Centre for Astrophysics, Tsinghua University , Beijing 100084, China
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- Hongjing Yang
- Department of Astronomy and Tsinghua Centre for Astrophysics, Tsinghua University , Beijing 100084, China
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- Shude Mao
- Department of Astronomy and Tsinghua Centre for Astrophysics, Tsinghua University , Beijing 100084, China
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- Sebastiano Calchi Novati
- IPAC , Mail Code 100-22, Caltech, 1200 E. California Blvd., Pasadena, CA 91125, USA
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- Andrew Gould
- Max-Planck-Institute for Astronomy , Königstuhl 17, D-69117 Heidelberg, Germany
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- Wei Zhu
- Canadian Institute for Theoretical Astrophysics, University of Toronto , 60 St George Street, Toronto, ON M5S 3H8, Canada
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- Charles A Beichman
- IPAC , Mail Code 100-22, Caltech, 1200 E. California Blvd., Pasadena, CA 91125, USA
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- Geoffery Bryden
- Jet Propulsion Laboratory, California Institute of Technology , 4800 Oak Grove Drive, Pasadena, CA 91109, USA
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- Sean Carey
- IPAC , Mail Code 100-22, Caltech, 1200 E. California Blvd., Pasadena, CA 91125, USA
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- B Scott Gaudi
- Department of Astronomy, Ohio State University , 140 W. 18th Ave., Columbus, OH 43210, USA
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- Calen B Henderson
- IPAC , Mail Code 100-22, Caltech, 1200 E. California Blvd., Pasadena, CA 91125, USA
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- Przemek Mróz
- Division of Physics, Mathematics, and Astronomy, California Institute of Technology , Pasadena, CA 91125, USA
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- Jan Skowron
- Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, PL-00-478 Warszawa, Poland
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- Radoslaw Poleski
- Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, PL-00-478 Warszawa, Poland
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- Michał K Szymański
- Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, PL-00-478 Warszawa, Poland
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- Igor Soszyński
- Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, PL-00-478 Warszawa, Poland
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- Paweł Pietrukowicz
- Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, PL-00-478 Warszawa, Poland
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- Szymon Kozłowski
- Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, PL-00-478 Warszawa, Poland
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- Krzysztof Ulaczyk
- Department of Physics, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL, UK
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- Krzysztof A Rybicki
- Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, PL-00-478 Warszawa, Poland
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- Patryk Iwanek
- Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, PL-00-478 Warszawa, Poland
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- Marcin Wrona
- Astronomical Observatory, University of Warsaw , Al. Ujazdowskie 4, PL-00-478 Warszawa, Poland
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- Michael D Albrow
- University of Canterbury, Department of Physics and Astronomy , Private Bag 4800, Christchurch 8020, New Zealand
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- Sun-Ju Chung
- Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
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- Cheongho Han
- Department of Physics, Chungbuk National University , Cheongju 28644, Republic of Korea
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- Kyu-Ha Hwang
- Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
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- Youn Kil Jung
- Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
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- Yoon-Hyun Ryu
- Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
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- In-Gu Shin
- Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
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- Sang-Mok Cha
- Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
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- Dong-Jin Kim
- Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
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- Hyoun-Woo Kim
- Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
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- Seung-Lee Kim
- Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
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- Dong-Joo Lee
- Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
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- Yongseok Lee
- Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
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- Byeong-Gon Park
- Korea Astronomy and Space Science Institute , Daejon 34055, Republic of Korea
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- Richard W Pogge
- Department of Astronomy, Ohio State University , 140 W. 18th Ave., Columbus, OH 43210, USA
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- Ian A Bond
- Institute of Natural and Mathematical Sciences, Massey University , Auckland 0745, New Zealand
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- Fumio Abe
- Institute for Space-Earth Environmental Research, Nagoya University , Nagoya 464-8601, Japan
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- Richard Barry
- Code 667, NASA Goddard Space Flight Center , Greenbelt, MD 20771, USA
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- David P Bennett
- Code 667, NASA Goddard Space Flight Center , Greenbelt, MD 20771, USA
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- Aparna Bhattacharya
- Code 667, NASA Goddard Space Flight Center , Greenbelt, MD 20771, USA
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- Martin Donachie
- Department of Physics, University of Auckland , Private Bag 92019, Auckland, New Zealand
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- Hirosane Fujii
- Department of Earth and Space Science, Graduate School of Science, Osaka University , Toyonaka, Osaka 560-0043, Japan
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- 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
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- Yuki Hirao
- Department of Earth and Space Science, Graduate School of Science, Osaka University , Toyonaka, Osaka 560-0043, Japan
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- Yoshitaka Itow
- Institute for Space-Earth Environmental Research, Nagoya University , Nagoya 464-8601, Japan
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- Rintaro Kirikawa
- Department of Earth and Space Science, Graduate School of Science, Osaka University , Toyonaka, Osaka 560-0043, Japan
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- Iona Kondo
- Department of Earth and Space Science, Graduate School of Science, Osaka University , Toyonaka, Osaka 560-0043, Japan
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- Naoki Koshimoto
- Department of Astronomy, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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- Man Cheung Alex Li
- Department of Physics, University of Auckland , Private Bag 92019, Auckland, New Zealand
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- Yutaka Matsubara
- Institute for Space-Earth Environmental Research, Nagoya University , Nagoya 464-8601, Japan
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- Yasushi Muraki
- Institute for Space-Earth Environmental Research, Nagoya University , Nagoya 464-8601, Japan
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- Shota Miyazaki
- Department of Earth and Space Science, Graduate School of Science, Osaka University , Toyonaka, Osaka 560-0043, Japan
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- Clément Ranc
- Code 667, NASA Goddard Space Flight Center , Greenbelt, MD 20771, USA
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- Nicholas J Rattenbury
- Department of Physics, University of Auckland , Private Bag 92019, Auckland, New Zealand
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- Yuki Satoh
- Department of Earth and Space Science, Graduate School of Science, Osaka University , Toyonaka, Osaka 560-0043, Japan
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- Hikaru Shoji
- Department of Earth and Space Science, Graduate School of Science, Osaka University , Toyonaka, Osaka 560-0043, Japan
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- Daisuke Suzuki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency , 3-1-1 Yoshinodai, Chuo, Sagamihara, Kanagawa, 252-5210, Japan
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- Yuzuru Tanaka
- Department of Earth and Space Science, Graduate School of Science, Osaka University , Toyonaka, Osaka 560-0043, Japan
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- Paul J Tristram
- University of Canterbury Mt. John Observatory , PO Box 56, Lake Tekapo 8770, New Zealand
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- Tsubasa Yamawaki
- Department of Earth and Space Science, Graduate School of Science, Osaka University , Toyonaka, Osaka 560-0043, Japan
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- Atsunori Yonehara
- Department of Physics, Faculty of Science, Kyoto Sangyo University , 603-8555 Kyoto, Japan
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- Etienne Bachelet
- Las Cumbres Observatory Global Telescope Network , 6740 Cortona Drive, suite 102, Goleta, CA 93117, USA
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- Markus P G Hundertmark
- Zentrum für Astronomie der Universität Heidelberg, Astronomisches Rechen-Institut , Mönchhofstr. 12-14, D-69120 Heidelberg, Germany
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- R Figuera Jaimes
- Facultad de Ingeniería y Tecnología, Universidad San Sebastian , General Lagos 1163, Valdivia 5110693, Chile
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- Dan Maoz
- School of Physics and Astronomy, Tel-Aviv University , Tel-Aviv 6997801, Israel
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- Matthew T Penny
- Department of Physics and Astronomy, Louisiana State University , Baton Rouge, LA 70803, USA
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- Rachel A Street
- Las Cumbres Observatory Global Telescope Network , 6740 Cortona Drive, suite 102, Goleta, CA 93117, USA
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- 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>
収録刊行物
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- Monthly Notices of the Royal Astronomical Society
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Monthly Notices of the Royal Astronomical Society 514 (4), 5952-5968, 2022-06-14
Oxford University Press (OUP)
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詳細情報 詳細情報について
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- CRID
- 1360017282193994496
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- ISSN
- 13652966
- 00358711
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- データソース種別
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- KAKEN