Aarhus University Seal / Aarhus Universitets segl

Anders Bo Justesen

Three Super-Earths Transiting the Nearby Star GJ 9827

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

Dokumenter

DOI

  • Prajwal Niraula, Astronomy Department and Van Vleck Observatory, Wesleyan University, Middletown, CT 06459, USA pniraula@wesleyan.edu 0000-0002-8052-3893
  • ,
  • Seth Redfield, Astronomy Department and Van Vleck Observatory, Wesleyan University, Middletown, CT 06459, USA 0000-0003-3786-3486
  • ,
  • Fei Dai, Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA 0000-0002-8958-0683
  • ,
  • Oscar Barragán, Dipartimento di Fisica, Universitá di Torino, via P. Giuria 1, I-10125 Torino, Italy 0000-0003-0563-0493
  • ,
  • Davide Gandolfi, Dipartimento di Fisica, Universitá di Torino, via P. Giuria 1, I-10125 Torino, Italy 0000-0001-8627-9628
  • ,
  • P. Wilson Cauley, Astronomy Department and Van Vleck Observatory, Wesleyan University, Middletown, CT 06459, USA 0000-0001-9207-0564
  • ,
  • Teruyuki Hirano, Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan 0000-0003-3618-7535
  • ,
  • Judith Korth, Rheinisches Institut für Umweltforschung an der Universität zu Köln, Aachener Strasse 209, 50931, Köln, Germany
  • ,
  • Alexis M. S. Smith, Institute of Planetary Research, German Aerospace Center, Rutherfordstrasse 2, D-12489 Berlin, Germany 0000-0002-2386-4341
  • ,
  • Jorge Prieto-Arranz, Departamento de Astrofísica, Universidad de La Laguna, E-38206 La Laguna, Spain 0000-0002-4609-6269
  • ,
  • Sascha Grziwa, Rheinisches Institut für Umweltforschung an der Universität zu Köln, Aachener Strasse 209, D-50931 Köln, Germany 0000-0003-3370-4058
  • ,
  • Malcolm Fridlund, Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, SE-439 92 Onsala, Sweden 0000-0003-2180-9936
  • ,
  • Carina M. Persson, Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, SE-439 92 Onsala, Sweden 0000-0003-1257-5146
  • ,
  • Anders Bo Justesen
  • Joshua N. Winn, Department of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, NJ 08544, USA 0000-0002-4265-047X
  • ,
  • Simon Albrecht
  • William D. Cochran, Department of Astronomy and McDonald Observatory, University of Texas at Austin, 2515 Speedway, Stop C1400, Austin, TX 78712, USA 0000-0001-9662-3496
  • ,
  • Szilard Csizmadia, Institute of Planetary Research, German Aerospace Center, Rutherfordstrasse 2, 12489, Berlin, Germany anders.erikson@dlr.de
  • ,
  • Girish M. Duvvuri, Astronomy Department and Van Vleck Observatory, Wesleyan University, Middletown, CT 06459, USA 0000-0002-7119-2543
  • ,
  • Michael Endl, Department of Astronomy and McDonald Observatory, University of Texas at Austin, 2515 Speedway, Stop C1400, Austin, TX 78712, USA 0000-0002-7714-6310
  • ,
  • Artie P. Hatzes, Thüringer Landessternwarte Tautenburg, Sternwarte 5, D-07778 Tautenberg, Germany
  • ,
  • John H. Livingston, Department of Astronomy, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-0033, Tokyo, Japan
  • ,
  • Norio Narita, National Astronomical Observatory of Japan, NINS, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan 0000-0001-8511-2981
  • ,
  • David Nespral, Departamento de Astrofísica, Universidad de La Laguna, E-38206 La Laguna, Tenerife, Spain
  • ,
  • Grzegorz Nowak, Departamento de Astrofísica, Universidad de La Laguna, E-38206 La Laguna, Spain 0000-0002-7031-7754
  • ,
  • Martin Pätzold, Rheinisches Institut für Umweltforschung an der Universität zu Köln, Aachener Strasse 209, 50931, Köln, Germany
  • ,
  • Enric Palle, Departamento de Astrofísica, Universidad de La Laguna, E-38206 La Laguna, Spain 0000-0003-0987-1593
  • ,
  • Vincent Van Eylen, Leiden Observatory, Leiden University, P.O. Box 9513, NL-2300 RA Leiden, The Netherlands
We report on the discovery of three transiting planets around GJ 9827. The planets have radii of 1.75 ± 0.18, 1.36 ± 0.14, and {2.11}-0.21+0.22 R ⊕, and periods of 1.20896, 3.6480, and 6.2014 days, respectively. The detection was made in Campaign 12 observations as part of our K2 survey of nearby stars. GJ 9827 is a V = 10.39 mag K6V star at a distance of 30.3 ± 1.6 parsecs and the nearest star to be found hosting planets by Kepler and K2. The radial velocity follow-up, high-resolution imaging, and detection of multiple transiting objects near commensurability drastically reduce the false positive probability. The orbital periods of GJ 9827 b, c, and d planets are very close to the 1:3:5 mean motion resonance. Our preliminary analysis shows that GJ 9827 planets are excellent candidates for atmospheric observations. Besides, the planetary radii span both sides of the rocky and gaseous divide, hence the system will be an asset in expanding our understanding of the threshold.
OriginalsprogEngelsk
TidsskriftThe Astronomical Journal
Vol/bind154
Nummer6
Sider (fra-til)266
ISSN0004-6256
DOI
StatusUdgivet - 1 dec. 2017

Se relationer på Aarhus Universitet Citationsformater

Download-statistik

Ingen data tilgængelig

ID: 119259406