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 avis › Tidsskriftartikel › Forskning › peer review
DOI
- https://doi.org/10.3847/1538-3881/ab9ac3
Forlagets udgivne version
- 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.
| Originalsprog | Engelsk |
|---|---|
| Artikelnummer | 74 |
| Tidsskrift | Astronomical Journal |
| Vol/bind | 160 |
| Nummer | 2 |
| Antal sider | 20 |
| ISSN | 0004-6256 |
| DOI | |
| Status | Udgivet - 2020 |
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