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K2-140b and K2-180b...
K2-140b and K2-180b - Characterization of a hot Jupiter and a mini-Neptune from the K2 mission
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- Korth, J. (author)
- Universität zu Köln,University of Cologne
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- Csizmadia, Sz. (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Gandolfi, D. (author)
- Universita degli Studi di Torino,University of Turin
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- Fridlund, Malcolm, 1952 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Pätzold, M. (author)
- Universität zu Köln,University of Cologne
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- Hirano, T. (author)
- Tokyo Institute of Technology
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- Livingston, J. (author)
- Tokyo Institute of Technology
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- Persson, Carina, 1964 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Deeg, H. J. (author)
- Universidad de la Laguna,University of La Laguna
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- Justesen, A.B. (author)
- Århus Universitet,Aarhus University
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- Barragan, O. (author)
- Universita degli Studi di Torino,University of Turin
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- Grziwa, S. (author)
- Universität zu Köln,University of Cologne
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- Endl, M. (author)
- The University of Texas at Austin, USA
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- Tronsgaard, R. (author)
- Nordic Optical Telescope
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- Dai, F. (author)
- Massachusetts Institute of Technology (MIT)
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- Cochran, W. D. (author)
- The University of Texas at Austin, USA
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- Albrecht, S. (author)
- Århus Universitet,Aarhus University
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- Alonso, R. (author)
- Universidad de la Laguna,University of La Laguna
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- Cabrera, J. (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Cauley, P.W. (author)
- Wesleyan University
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- Cusano, F. (author)
- Istituto nazionale di astrofisica (INAF)
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- Eigmüller, Ph (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Erikson, A. (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Esposito, M. (author)
- Thüringer Landessternwarte Tautenburg
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- Guenther, E. W. (author)
- Thüringer Landessternwarte Tautenburg
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- Hatzes, A. P. (author)
- Thüringer Landessternwarte Tautenburg
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- Hidalgo, D. (author)
- Universidad de la Laguna,University of La Laguna
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- Kuzuhara, M. (author)
- National Institutes of Natural Sciences (NINS)
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- Montañes, P. (author)
- Universidad de la Laguna,University of La Laguna
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- Napolitano, N.R. (author)
- Istituto nazionale di astrofisica (INAF)
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- Narita, N. (author)
- University of Tokyo, Japan,National Institutes of Natural Sciences (NINS),Universidad de la Laguna,University of La Laguna
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- Niraula, P. (author)
- Wesleyan University
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- Nespral, D. (author)
- Universidad de la Laguna,University of La Laguna
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- Nowak, G. (author)
- Universidad de la Laguna,University of La Laguna
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- Palle, E. (author)
- Universidad de la Laguna,University of La Laguna
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- Petrillo, C.E. (author)
- Rijksuniversiteit Groningen,University of Groningen
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- Redfield, S. (author)
- Wesleyan University
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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,Freie Universität Berlin
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- Smith, A. M. S. (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Tortora, C. (author)
- Rijksuniversiteit Groningen,University of Groningen
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- Van Eylen, V. (author)
- Universiteit Leiden (UL),Leiden University (UL)
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- Winn, J. N. (author)
- Princeton University
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(creator_code:org_t)
- 2018-10-12
- 2019
- English.
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In: Monthly Notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 0035-8711 .- 1365-2966. ; 482:2, s. 1807-1823
- Related links:
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https://arxiv.org/pd...
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- We report the independent discovery and characterization of two K2 planets: K2-180b, a mini-Neptune-sized planet in an 8.9-d orbit transiting a V = 12.6 mag, metal-poor ([Fe/H] = -0.65 ± 0.10) K2V star in K2 campaign 5; K2-140b, a transiting hot Jupiter in a 6.6-d orbit around a V = 12.6 mag G6V ([Fe/H] = + 0.10 ± 0.10) star in K2 campaign 10. Our results are based on K2 time-series photometry combined with high-spatial resolution imaging and high-precision radial velocity measurements. We present the first mass measurement of K2-180b. K2-180b has a mass of Mp = 11.3 ± 1.9 M_Earth and a radius of Rp = 2.2 ± 0.1 R_Earth, yielding a mean density of ρp = 5.6 ± 1.9 g cm-3, suggesting a rocky composition. Given its radius, K2-180b is above the region of the so-called `planetary radius gap'. K2-180b is in addition not only one of the densest mini-Neptune-sized planets, but also one of the few mini-Neptune-sized planets known to transit a metal-poor star. We also constrain the planetary and orbital parameters of K2-140b and show that, given the currently available Doppler measurements, the eccentricity is consistent with zero, contrary to the results of a previous study.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- planets and satellites: fundamental parameters
- stars: individual: K2-180
- stars: individual: K2-140
- stars: fundamental parameters
- techniques: photometric
- techniques: radial velocities
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database
- By the author/editor
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Korth, J.
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Csizmadia, Sz.
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Gandolfi, D.
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Fridlund, Malcol ...
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Pätzold, M.
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Hirano, T.
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show more...
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Livingston, J.
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Persson, Carina, ...
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Deeg, H. J.
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Justesen, A.B.
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Barragan, O.
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Grziwa, S.
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Endl, M.
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Tronsgaard, R.
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Dai, F.
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Cochran, W. D.
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Albrecht, S.
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Alonso, R.
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Cabrera, J.
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Cauley, P.W.
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Cusano, F.
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Eigmüller, Ph
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Erikson, A.
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Esposito, M.
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Guenther, E. W.
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Hatzes, A. P.
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Hidalgo, D.
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Kuzuhara, M.
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Montañes, P.
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Napolitano, N.R.
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Narita, N.
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Niraula, P.
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Nespral, D.
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Nowak, G.
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Palle, E.
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Petrillo, C.E.
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Redfield, S.
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Prieto-Arranz, J ...
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Rauer, H.
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Smith, A. M. S.
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Tortora, C.
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Van Eylen, V.
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Winn, J. N.
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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