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  • Barragán, O.Universita degli Studi di Torino,University of Turin (author)

K2-139 b: a low-mass warm Jupiter on a 29-d orbit transiting an active K0 V star

  • Article/chapterEnglish2018

Publisher, publication year, extent ...

  • 2017-12-13
  • Oxford University Press (OUP),2018
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:research.chalmers.se:4e99c5d1-2809-4a3a-883a-d7a3a82080eb
  • https://doi.org/10.1093/mnras/stx3207DOI
  • https://research.chalmers.se/publication/500328URI
  • https://research.chalmers.se/publication/501605URI
  • https://research.chalmers.se/publication/503032URI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • We announce the discovery of K2-139 b (EPIC 218916923 b), a transiting warm-Jupiter (Teq = 547 ± 25 K) on a 29-d orbit around an active (log R'_HK = -4.46 ± 0.06) K0V star in K2 Campaign 7. We derive the system's parameters by combining the K2 photometry with ground-based follow-up observations. With a mass of 0.387_-0.075^+0.083 M_J and radius of 0.808_-0.033^+0.034 R_J, K2-139 b is one of the transiting warm Jupiters with the lowest mass known to date. The planetary mean density of 0.91_-0.20^+0.24 g/cm^3 can be explained with a core of ~50 M⊕. Given the brightness of the host star (V = 11.653 mag), the relatively short transit duration (~5 h), and the expected amplitude of the Rossiter-McLaughlin effect (~25m/s), K2-139 is an ideal target to measure the spin-orbit angle of a planetary system hosting a warm Jupiter.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Gandolfi, D.Universita degli Studi di Torino,University of Turin (author)
  • Smith, A. M. S.Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR) (author)
  • Deeg, H. J.Universidad de la Laguna,University of La Laguna (author)
  • Fridlund, Malcolm,1952Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)malfri (author)
  • Persson, Carina,1964Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)carina64 (author)
  • Donati, P.Istituto nazionale di astrofisica (INAF) (author)
  • Endl, M.The University of Texas at Austin, USA (author)
  • Csizmadia, Sz.Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR) (author)
  • Grziwa, S.Universität zu Köln,University of Cologne (author)
  • Nespral, D.Universidad de la Laguna,University of La Laguna (author)
  • Hatzes, Artie P.Thüringer Landessternwarte Tautenburg (author)
  • Cochran, W. D.The University of Texas at Austin, USA (author)
  • Fossati, L.Österreichische Akademie der Wissenschaften,Austrian Academy of Sciences (author)
  • Brems, S. S.Ruprecht-Karls-Universität Heidelberg,Heidelberg University (author)
  • Cabrera, J.Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR) (author)
  • Cusano, F.Istituto nazionale di astrofisica (INAF) (author)
  • Eigmüller, Ph.Universita degli Studi di Torino,University of Turin (author)
  • Eiroa, C.Universidad Autonoma de Madrid (UAM) (author)
  • Erikson, A.Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR) (author)
  • Guenther, E. W.Thüringer Landessternwarte Tautenburg (author)
  • Korth, J.Universität zu Köln,University of Cologne (author)
  • Lorenzo-Oliveira, D.Universidade de Sao Paulo (USP),University of Sao Paulo (USP) (author)
  • Mancini, L.Max-Planck Institut für Radioastronomie,Max-Planck Institute for Radio Astronomy,Istituto nazionale di astrofisica (INAF),Universita degli Studi di Roma Tor Vergata,University of Rome Tor Vergata (author)
  • Pätzold, M.Universität zu Köln,University of Cologne (author)
  • Prieto-Arranz, J.Universidad de la Laguna,University of La Laguna (author)
  • Rauer, H.Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR),Technische Universität Berlin (author)
  • Rebollido, I.Universidad Autonoma de Madrid (UAM) (author)
  • Saario, J.Nordic Optical Telescope (author)
  • Zakhozhay, O. V.National Academy of Sciences in Ukraine,Max-Planck Institut für Radioastronomie,Max-Planck Institute for Radio Astronomy (author)
  • Universita degli Studi di TorinoDeutsches Zentrums für Luft- und Raumfahrt (DLR) (creator_code:org_t)

Related titles

  • In:Monthly Notices of the Royal Astronomical Society: Oxford University Press (OUP)475:2, s. 1765-17760035-87111365-2966

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