OGLE-2017-BLG-0406: Spitzer Microlens Parallax Reveals Saturn-mass Planet Orbiting M-dwarf Host in the Inner Galactic Disk

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

DOI

  • Yuki Hirao, Osaka University, NASA Goddard Space Flight Center, University of Maryland, College Park
  • ,
  • David P. Bennett, NASA Goddard Space Flight Center, University of Maryland, College Park
  • ,
  • Yoon Hyun Ryu, Korea Astronomy and Space Science Institute
  • ,
  • Naoki Koshimoto, University of Tokyo
  • ,
  • Andrzej Udalski, University of Warsaw
  • ,
  • Jennifer C. Yee, Harvard University
  • ,
  • Takahiro Sumi, Osaka University
  • ,
  • Ian A. Bond, Massey University
  • ,
  • Yossi Shvartzvald, Weizmann Institute of Science
  • ,
  • Fumio Abe, Nagoya University
  • ,
  • Richard K. Barry, NASA Goddard Space Flight Center
  • ,
  • Aparna Bhattacharya, NASA Goddard Space Flight Center, University of Maryland, College Park
  • ,
  • Martin Donachie, The University of Auckland
  • ,
  • Akihiko Fukui, University of Tokyo, Instituto Astrofisico de Canarias
  • ,
  • Yoshitaka Itow, Nagoya University
  • ,
  • Iona Kondo, Osaka University
  • ,
  • Man Cheung Alex Li, The University of Auckland
  • ,
  • Yutaka Matsubara, Nagoya University
  • ,
  • Taro Matsuo, Osaka University
  • ,
  • Shota Miyazaki, Osaka University
  • ,
  • Yasushi Muraki, Nagoya University
  • ,
  • Masayuki Nagakane, Osaka University
  • ,
  • Clément Ranc, NASA Goddard Space Flight Center
  • ,
  • Nicholas J. Rattenbury, The University of Auckland
  • ,
  • Haruno Suematsu, Osaka University
  • ,
  • Hiroshi Shibai, Osaka University
  • ,
  • Daisuke Suzuki, Osaka University
  • ,
  • Paul J. Tristram, University of Canterbury
  • ,
  • Atsunori Yonehara, Kyoto Sangyo University
  • ,
  • J. Skowron, University of Warsaw
  • ,
  • R. Poleski, University of Warsaw, Ohio State University
  • ,
  • P. Mróz, California Institute of Technology
  • ,
  • M. K. Szymański, University of Warsaw
  • ,
  • I. Soszyński, University of Warsaw
  • ,
  • S. Kozłowski, University of Warsaw
  • ,
  • P. Pietrukowicz, University of Warsaw
  • ,
  • K. Ulaczyk, University of Warsaw
  • ,
  • K. Rybicki, University of Warsaw
  • ,
  • P. Iwanek, University of Warsaw
  • ,
  • Michael D. Albrow, University of Canterbury
  • ,
  • Sun Ju Chung, Korea Astronomy and Space Science Institute, University of Science and Technology UST
  • ,
  • Andrew Gould, Korea Astronomy and Space Science Institute, Max Planck Institute for Astronomy, Ohio State University
  • ,
  • Cheongho Han, Chungbuk National University
  • ,
  • Kyu Ha Hwang, Korea Astronomy and Space Science Institute
  • ,
  • Youn Kil Jung, Korea Astronomy and Space Science Institute
  • ,
  • In Gu Shin, Korea Astronomy and Space Science Institute
  • ,
  • Weicheng Zang, Tsinghua University
  • ,
  • Sang Mok Cha, Korea Astronomy and Space Science Institute, Kyung Hee University
  • ,
  • Dong Jin Kim, Korea Astronomy and Space Science Institute
  • ,
  • Hyoun Woo Kim, Korea Astronomy and Space Science Institute
  • ,
  • Seung Lee Kim, Korea Astronomy and Space Science Institute, University of Science and Technology UST
  • ,
  • Chung Uk Lee, Korea Astronomy and Space Science Institute
  • ,
  • Dong Joo Lee, Korea Astronomy and Space Science Institute
  • ,
  • Yongseok Lee, Korea Astronomy and Space Science Institute, Kyung Hee University
  • ,
  • Byeong Gon Park, Korea Astronomy and Space Science Institute, University of Science and Technology UST
  • ,
  • Richard W. Pogge, Ohio State University
  • ,
  • Charles A. Beichman, California Institute of Technology
  • ,
  • Geoffery Bryden, Jet Propulsion Laboratory, California Institute of Technology
  • ,
  • Sebastiano Calchi Novati, California Institute of Technology
  • ,
  • Sean Carey, California Institute of Technology
  • ,
  • B. Scott Gaudi, Ohio State University
  • ,
  • Calen B. Henderson, California Institute of Technology
  • ,
  • Wei Zhu, University of Toronto
  • ,
  • Etienne Bachelet, Las Cumbres Observatory Global Telescope Network, Inc
  • ,
  • Greg Bolt, Craigie Observatory
  • ,
  • Grant Christie, Auckland Observatory
  • ,
  • Markus Hundertmark, Heidelberg University 
  • ,
  • Tim Natusch, Auckland Observatory, Auckland University of Technology
  • ,
  • Dan Maoz, Tel Aviv University
  • ,
  • Jennie McCormick, Centre for Backyard Astrophysics
  • ,
  • Rachel A. Street, Las Cumbres Observatory Global Telescope Network, Inc
  • ,
  • Thiam Guan Tan, Perth Exoplanet Survey Telescope
  • ,
  • Yiannis Tsapras, Heidelberg University 
  • ,
  • U. G. Jørgensen, Københavns Universitet
  • ,
  • M. Dominik, University of St Andrews
  • ,
  • V. Bozza, University of Salerno, National Institute for Nuclear Physics
  • ,
  • J. Skottfelt, Open University Milton Keynes
  • ,
  • C. Snodgrass, University of Edinburgh
  • ,
  • S. Ciceri, Stockholm University
  • ,
  • R. Figuera Jaimes, Tsinghua University, University of St Andrews
  • ,
  • D. F. Evans, Astrophysics Group, Keele University, Staffordshire, ST5 5BG, Keele University
  • ,
  • N. Peixinho, Universidad de Antofagasta
  • ,
  • T. C. Hinse, Chungnam National Universitys
  • ,
  • M. J. Burgdorf, University of Hamburg
  • ,
  • J. Southworth, Keele University
  • ,
  • S. Rahvar, Sharif University of Technology
  • ,
  • S. Sajadian, Isfahan University of Technology
  • ,
  • M. Rabus, Pontificia Universidad Catolica de Chile
  • ,
  • C. Von Essen
  • Y. I. Fujii, Københavns Universitet, Nagoya University
  • ,
  • J. Campbell-White, University of Kent
  • ,
  • S. Lowry, University of Kent
  • ,
  • C. Helling, University of St Andrews
  • ,
  • L. Mancini, University of Rome Tor Vergata, Max Planck Institute for Astronomy, National Institute for Astrophysics, Instituto Internazionale per Gli Alti Studi Scientifici (IIASS)
  • ,
  • L. Haikala, Universidad de Atacama
  • ,
  • Ryo Kandori, National Institutes of Natural Sciences - AstroBiology Center

We report the discovery and analysis of the planetary microlensing event OGLE-2017-BLG-0406, which was observed both from the ground and by the Spitzer satellite in a solar orbit. At high magnification, the anomaly in the light curve was densely observed by ground-based-survey and follow-up groups, and it was found to be explained by a planetary lens with a planet/host mass ratio of q = 7.0 × 10-4 from the light-curve modeling. The ground-only and Spitzer-"only"data each provide very strong one-dimensional (1D) constraints on the 2D microlens parallax vector πE. When combined, these yield a precise measurement of πE and of the masses of the host equation presented and planet M planet = 0.41 ± 0.05 M Jup. The system lies at a distance D L = 5.2 ± 0.5 kpc from the Sun toward the Galactic bulge, and the host is more likely to be a disk population star according to the kinematics of the lens. The projected separation of the planet from the host is a? = 3.5 ± 0.3 au (i.e., just over twice the snow line). The Galactic-disk kinematics are established in part from a precise measurement of the source proper motion based on OGLE-IV data. By contrast, the Gaia proper-motion measurement of the source suffers from a catastrophic 10σ error.

OriginalsprogEngelsk
Artikelnummer74
TidsskriftAstronomical Journal
Vol/bind160
Nummer2
Antal sider20
ISSN0004-6256
DOI
StatusUdgivet - 2020

Se relationer på Aarhus Universitet Citationsformater

ID: 195867292