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The Discovery and M...
The Discovery and Mass Measurement of a New Ultra-short-period Planet: K2-131
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- Dai, F. (author)
- Princeton University,Massachusetts Institute of Technology (MIT)
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- Joshua, N. (author)
- Princeton University
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- Gandolfi, D. (author)
- Universita degli Studi di Torino,University of Turin
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Wangm, S. (author)
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- Teske, J.K. (author)
- Carnegie Observatories
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- Burt, J. (author)
- Massachusetts Institute of Technology (MIT)
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- Albrecht, S. (author)
- Århus Universitet,Aarhus University
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- Barragán, O. (author)
- Universita degli Studi di Torino,University of Turin
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- Cochran, William D. (author)
- The University of Texas at Austin, USA
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- Endl, M. (author)
- The University of Texas at Austin, USA
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- Fridlund, Malcolm, 1952 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Hatzes, Artie P. (author)
- Thüringer Landessternwarte Tautenburg
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- Hirano, T. (author)
- Tokyo Institute of Technology
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- Hirsch, L.A. (author)
- University of California
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- Johnson, M.C. (author)
- Ohio State University
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- Justesen, A.B. (author)
- Århus Universitet,Aarhus University
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- Livingston, J. (author)
- University of Tokyo, Japan
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- Persson, Carina, 1964 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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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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- Vanderburg, A. (author)
- Harvard-Smithsonian Center for Astrophysics
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- Alonso, R. (author)
- Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias
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- Antoniciello, G. (author)
- Universita degli Studi di Torino,University of Turin
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Arriagada, P. (author)
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Butler, R.P. (author)
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- Cabrera, J. (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Crane, J.D. (author)
- Carnegie Observatories
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- Cusano, F. (author)
- Osservatorio Astronomico Di Bologna
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- Csizmadia, S. (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Deeg, H. (author)
- Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias
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Dieterich, S.B. (author)
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- Eigmüller, P. (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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Everett, M.E. (author)
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- A., Fukui (author)
- National Astronomical Observatory of Japan
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- Grziwa, S. (author)
- Universität zu Köln,University of Cologne
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- Guenther, E. W. (author)
- Thüringer Landessternwarte Tautenburg
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- Henry, G.W. (author)
- Tennessee State University
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- Howell, S.B. (author)
- NASA Ames Research Center
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- Johnson, J.A. (author)
- Harvard-Smithsonian Center for Astrophysics
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- Korth, J. (author)
- Universität zu Köln,University of Cologne
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- Kuzuhara, M. (author)
- National Astronomical Observatory of Japan,National Institutes of Natural Sciences (NINS)
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- Narita, N. (author)
- University of Tokyo, Japan,National Astronomical Observatory of Japan,National Institutes of Natural Sciences (NINS)
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- Nespral, D. (author)
- Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Nowak, G. (author)
- Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Palle, E. (author)
- Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias
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- Patzold, M. (author)
- Universität zu Köln,University of Cologne
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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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- Montanés Rodríguez, P. (author)
- Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias
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- Shectman, S.A. (author)
- Carnegie Observatories
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- Smith, A. M S (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Thompson, I.B. (author)
- Carnegie Observatories
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- Van Eylen, V. (author)
- Universiteit Leiden (UL),Leiden University (UL)
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- Williamson, M.W. (author)
- Tennessee State University
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- Wittenmyer, R.A. (author)
- University of Southern Queensland
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(creator_code:org_t)
- 2017-11-14
- 2017
- English.
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In: Astronomical Journal. - : American Astronomical Society. - 1538-3881 .- 0004-6256. ; 154:6, s. 226-
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Abstract
Subject headings
Close
- We report the discovery of a new ultra-short-period planet and summarize the properties of all such planets for which the mass and radius have been measured. The new planet, EPIC 228732031b, was discovered in K2 Campaign 10. It has a radius of 1.81-0.12+0.16 R_Earth and orbits a G dwarf with a period of 8.9 hr. Radial velocities obtained with Magellan/PFS and TNG/HARPS-N show evidence for stellar activity along with orbital motion. We determined the planetary mass using two different methods: (1) the “floating chunk offset” method, based only on changes in velocity observed on the same night; and (2) a Gaussian process regression based on both the radial velocity and photometric time series. The results are consistent and lead to a mass measurement of 6.5+/- 1.6 M_Earth and a mean density of 6.0-2.7+3.0 g cm‑3.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- planetary systems
- stars: individual: EPIC 228732031
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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Dai, F.
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Joshua, N.
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Gandolfi, D.
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Wangm, S.
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Teske, J.K.
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Burt, J.
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show more...
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Albrecht, S.
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Barragán, O.
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Cochran, William ...
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Endl, M.
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Fridlund, Malcol ...
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Hatzes, Artie P.
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Hirano, T.
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Hirsch, L.A.
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Johnson, M.C.
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Justesen, A.B.
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Livingston, J.
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Persson, Carina, ...
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Prieto-Arranz, J ...
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Vanderburg, A.
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Alonso, R.
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Antoniciello, G.
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Arriagada, P.
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Butler, R.P.
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Cabrera, J.
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Crane, J.D.
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Cusano, F.
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Csizmadia, S.
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Deeg, H.
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Dieterich, S.B.
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Eigmüller, P.
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Erikson, A.
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Everett, M.E.
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A., Fukui
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Grziwa, S.
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Guenther, E. W.
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Henry, G.W.
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Howell, S.B.
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Johnson, J.A.
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Korth, J.
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Kuzuhara, M.
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Narita, N.
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Nespral, D.
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Nowak, G.
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Palle, E.
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Patzold, M.
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Rauer, H.
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Montanés Rodrígu ...
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Shectman, S.A.
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Smith, A. M S
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Thompson, I.B.
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Van Eylen, V.
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Williamson, M.W.
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Wittenmyer, R.A.
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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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Astronomical Jou ...
- By the university
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Chalmers University of Technology