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K2-139 b: a low-mas...
K2-139 b: a low-mass warm Jupiter on a 29-d orbit transiting an active K0 V star
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- Barragán, O. (author)
- Universita degli Studi di Torino,University of Turin
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- Gandolfi, D. (author)
- Universita degli Studi di Torino,University of Turin
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- Smith, A. M. S. (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Deeg, H. J. (author)
- Universidad de la Laguna,University of La Laguna
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- Fridlund, Malcolm, 1952 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Persson, Carina, 1964 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Donati, P. (author)
- Istituto nazionale di astrofisica (INAF)
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- Endl, M. (author)
- The University of Texas at Austin, USA
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- Csizmadia, Sz. (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Grziwa, S. (author)
- Universität zu Köln,University of Cologne
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- Nespral, D. (author)
- Universidad de la Laguna,University of La Laguna
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- Hatzes, Artie P. (author)
- Thüringer Landessternwarte Tautenburg
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- Cochran, W. D. (author)
- The University of Texas at Austin, USA
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- Fossati, L. (author)
- Österreichische Akademie der Wissenschaften,Austrian Academy of Sciences
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- Brems, S. S. (author)
- Ruprecht-Karls-Universität Heidelberg,Heidelberg University
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- Cabrera, J. (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Cusano, F. (author)
- Istituto nazionale di astrofisica (INAF)
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- Eigmüller, Ph. (author)
- Universita degli Studi di Torino,University of Turin
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- Eiroa, C. (author)
- Universidad Autonoma de Madrid (UAM)
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- Erikson, A. (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Guenther, E. W. (author)
- Thüringer Landessternwarte Tautenburg
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- Korth, J. (author)
- Universität zu Köln,University of Cologne
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- Lorenzo-Oliveira, D. (author)
- Universidade de Sao Paulo (USP),University of Sao Paulo (USP)
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- Mancini, L. (author)
- 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
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- Pätzold, M. (author)
- Universität zu Köln,University of Cologne
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- Prieto-Arranz, J. (author)
- Universidad de la Laguna,University of La Laguna
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- Rauer, H. (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR),Technische Universität Berlin
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- Rebollido, I. (author)
- Universidad Autonoma de Madrid (UAM)
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- Saario, J. (author)
- Nordic Optical Telescope
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- Zakhozhay, O. V. (author)
- National Academy of Sciences in Ukraine,Max-Planck Institut für Radioastronomie,Max-Planck Institute for Radio Astronomy
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(creator_code:org_t)
- 2017-12-13
- 2018
- English.
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In: Monthly Notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 0035-8711 .- 1365-2966. ; 475:2, s. 1765-1776
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Abstract
Subject headings
Close
- 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
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- planets and satellites: detection
- stars: fundamental parameters
- planets and satellites: individual: K2-139 b (EPIC 218916923b)
- planetary systems
Publication and Content Type
- art (subject category)
- ref (subject category)
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To the university's database
- By the author/editor
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Barragán, O.
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Gandolfi, D.
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Smith, A. M. S.
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Deeg, H. J.
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Fridlund, Malcol ...
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Persson, Carina, ...
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show more...
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Donati, P.
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Endl, M.
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Csizmadia, Sz.
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Grziwa, S.
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Nespral, D.
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Hatzes, Artie P.
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Cochran, W. D.
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Fossati, L.
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Brems, S. S.
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Cabrera, J.
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Cusano, F.
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Eigmüller, Ph.
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Eiroa, C.
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Erikson, A.
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Guenther, E. W.
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Korth, J.
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Lorenzo-Oliveira ...
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Mancini, L.
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Pätzold, M.
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Prieto-Arranz, J ...
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Rauer, H.
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Rebollido, I.
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Saario, J.
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Zakhozhay, O. V.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
- Articles in the publication
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Monthly Notices ...
- By the university
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Chalmers University of Technology