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K2-260 b: A hot Jup...
K2-260 b: A hot Jupiter transiting an F star, and K2-261 b: A warm Saturn around a bright G star
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- Johnson, M.C. (author)
- Ohio State University
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- Dai, Fei (author)
- Princeton University,Massachusetts Institute of Technology (MIT)
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- Justesen, A.B. (author)
- Århus Universitet,Aarhus University
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- Gandolfi, D. (author)
- Universita degli Studi di Torino,University of Turin
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- Hatzes, A. (author)
- Thüringer Landessternwarte Tautenburg
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- Nowak, G. (author)
- Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Endl, M. (author)
- The University of Texas at Austin, USA
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- Cochran, William D. (author)
- The University of Texas at Austin, USA
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- Hidalgo, D. (author)
- Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Watanabe, Noriharu (author)
- The Graduate University for Advanced Studies (SOKENDAI)
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- Parviainen, H. (author)
- Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias
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- Hirano, T. (author)
- University of Hawaii,Tokyo Institute of Technology
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- Villanueva, S. (author)
- Ohio State University
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- Prieto-Arranz, J. (author)
- Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias
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- Narita, Norio (author)
- University of Tokyo, Japan,National Astronomical Observatory of Japan,National Institutes of Natural Sciences (NINS),Instituto de Astrofísica de Canarias,Japan Science and Technology Agency (JST)
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- Palle, E. (author)
- Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Guenther, E. W. (author)
- Thüringer Landessternwarte Tautenburg
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- Barragán, O. (author)
- Universita degli Studi di Torino,University of Turin
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- Trifonov, T. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Niraula, Prajwal (author)
- Wesleyan University
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- MacQueen, P. (author)
- The University of Texas at Austin, USA
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- Cabrera, J. (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Csizmadia, Szilard (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Eigmüller, P. (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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- Korth, Judith (author)
- Universität zu Köln,University of Cologne
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- Pätzold, Martin (author)
- Universität zu Köln,University of Cologne
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- Smith, Alexis M. S. (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Albrecht, Simon (author)
- Århus Universitet,Aarhus University
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- Alonso, R. (author)
- Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias
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- Deeg, H. (author)
- Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Erikson, Anders (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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- Fridlund, Malcolm, 1952 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Universiteit Leiden (UL),Leiden University (UL)
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- Fukui, A. (author)
- National Astronomical Observatory of Japan
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- Kusakabe, Nobuhiko (author)
- National Institutes of Natural Sciences (NINS),National Astronomical Observatory of Japan
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- Kuzuhara, M. (author)
- National Astronomical Observatory of Japan,National Institutes of Natural Sciences (NINS)
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- Livingston, J.H. (author)
- University of Tokyo, Japan
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- Rodriguez, P. M. (author)
- Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias
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- Nespral, David (author)
- Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias
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- Persson, Carina, 1964 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Purismo, T. (author)
- Nordic Optical Telescope
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- Raimundo, S. (author)
- Niels Bohr Institute
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- Rauer, H. (author)
- Technische Universität Berlin,Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Ribas, I. (author)
- Universitat Autonoma de Barcelona (UAB)
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- Tamura, Motohide (author)
- University of Tokyo, Japan,National Institutes of Natural Sciences (NINS),National Astronomical Observatory of Japan
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- Van Eylen, Vincent (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)
- 2018-08-16
- 2018
- English.
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In: Monthly Notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 0035-8711 .- 1365-2966. ; 481:1, s. 596-612
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https://academic.oup...
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- We present the discovery and confirmation of two new transiting giant planets from the Kepler extended mission K2. K2-260 b is a hot Jupiter transiting a V = 12.7 F6V star in K2 Field 13, with a mass and radius of M = 1.39-0.06+0.05M⊙and R = 1.69 ± 0.03 R. The planet has an orbital period of P = 2.627 d, and a mass and radius of MP= 1.42-0.32+0.31MJand RP= 1.552-0.057+0.048RJ. This is the first K2 hot Jupiter with a detected secondary eclipse in the Kepler bandpass, with a depth of 71 ± 15 ppm, which we use to estimate a geometric albedo of Ag~ 0.2. We also detected a candidate stellar companion at 0.6 arcsec from K2-260; we find that it is very likely physically associated with the system, in which case it would be an M5-6V star at a projected separation of ~400 au. K2-261 b is a warm Saturn transiting a bright (V = 10.5) G7IV/V star in K2 Field 14. The host star is a metal rich ([Fe/H] = 0.36 ± 0.06), mildly evolved 1.10-0.02+0.01M⊙star with R = 1.65 ± 0.04 R. Thanks to its location near the main-sequence turn-off, we can measure a relatively precise age of 8.8-0.3+0.4Gyr. The planet has P = 11.633 d, MP= 0.223 ± 0.031 MJ, and RP= 0.850-0.022+0.026RJ, and its orbit is eccentric (e = 0.39 ± 0.15). Its brightness and relatively large transit depth make this one of the best-known warm Saturns for follow-up observations to further characterize the planetary system.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- K2-261 b
- Planets and satellites: detection
- Planets and satellites: individual: K2-260 b
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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Johnson, M.C.
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Dai, Fei
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Justesen, A.B.
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Gandolfi, D.
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Hatzes, A.
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Nowak, G.
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show more...
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Endl, M.
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Cochran, William ...
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Hidalgo, D.
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Watanabe, Noriha ...
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Parviainen, H.
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Hirano, T.
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Villanueva, S.
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Prieto-Arranz, J ...
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Narita, Norio
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Palle, E.
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Guenther, E. W.
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Barragán, O.
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Trifonov, T.
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Niraula, Prajwal
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MacQueen, P.
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Cabrera, J.
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Csizmadia, Szila ...
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Eigmüller, P.
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Grziwa, S.
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Korth, Judith
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Pätzold, Martin
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Smith, Alexis M. ...
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Albrecht, Simon
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Alonso, R.
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Deeg, H.
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Erikson, Anders
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Esposito, M.
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Fridlund, Malcol ...
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Fukui, A.
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Kusakabe, Nobuhi ...
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Kuzuhara, M.
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Livingston, J.H.
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Rodriguez, P. M.
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Nespral, David
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Persson, Carina, ...
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Purismo, T.
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Raimundo, S.
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Rauer, H.
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Ribas, I.
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Tamura, Motohide
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Van Eylen, Vince ...
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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