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  • Dai, F.Princeton University,Massachusetts Institute of Technology (MIT) (author)

The Discovery and Mass Measurement of a New Ultra-short-period Planet: K2-131

  • Article/chapterEnglish2017

Publisher, publication year, extent ...

  • 2017-11-14
  • American Astronomical Society,2017
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:research.chalmers.se:0f0955bb-fe88-474e-a7da-ebd6668cc844
  • https://doi.org/10.3847/1538-3881/aa9065DOI
  • https://research.chalmers.se/publication/253325URI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

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

Notes

  • 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 and genre

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

  • Joshua, N.Princeton University (author)
  • Gandolfi, D.Universita degli Studi di Torino,University of Turin (author)
  • Wangm, S. (author)
  • Teske, J.K.Carnegie Observatories (author)
  • Burt, J.Massachusetts Institute of Technology (MIT) (author)
  • Albrecht, S.Århus Universitet,Aarhus University (author)
  • Barragán, O.Universita degli Studi di Torino,University of Turin (author)
  • Cochran, William D.The University of Texas at Austin, USA (author)
  • Endl, M.The University of Texas at Austin, USA (author)
  • Fridlund, Malcolm,1952Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)malfri (author)
  • Hatzes, Artie P.Thüringer Landessternwarte Tautenburg (author)
  • Hirano, T.Tokyo Institute of Technology (author)
  • Hirsch, L.A.University of California (author)
  • Johnson, M.C.Ohio State University (author)
  • Justesen, A.B.Århus Universitet,Aarhus University (author)
  • Livingston, J.University of Tokyo, Japan (author)
  • Persson, Carina,1964Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)carina64 (author)
  • Prieto-Arranz, J.Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias (author)
  • Vanderburg, A.Harvard-Smithsonian Center for Astrophysics (author)
  • Alonso, R.Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias (author)
  • Antoniciello, G.Universita degli Studi di Torino,University of Turin (author)
  • Arriagada, P. (author)
  • Butler, R.P. (author)
  • Cabrera, J.Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR) (author)
  • Crane, J.D.Carnegie Observatories (author)
  • Cusano, F.Osservatorio Astronomico Di Bologna (author)
  • Csizmadia, S.Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR) (author)
  • Deeg, H.Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias (author)
  • Dieterich, S.B. (author)
  • Eigmüller, P.Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR) (author)
  • Erikson, A.Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR) (author)
  • Everett, M.E. (author)
  • A., FukuiNational Astronomical Observatory of Japan (author)
  • Grziwa, S.Universität zu Köln,University of Cologne (author)
  • Guenther, E. W.Thüringer Landessternwarte Tautenburg (author)
  • Henry, G.W.Tennessee State University (author)
  • Howell, S.B.NASA Ames Research Center (author)
  • Johnson, J.A.Harvard-Smithsonian Center for Astrophysics (author)
  • Korth, J.Universität zu Köln,University of Cologne (author)
  • Kuzuhara, M.National Astronomical Observatory of Japan,National Institutes of Natural Sciences (NINS) (author)
  • Narita, N.University of Tokyo, Japan,National Astronomical Observatory of Japan,National Institutes of Natural Sciences (NINS) (author)
  • Nespral, D.Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna (author)
  • Nowak, G.Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna (author)
  • Palle, E.Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias (author)
  • Patzold, M.Universität zu Köln,University of Cologne (author)
  • Rauer, H.Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR),Technische Universität Berlin (author)
  • Montanés Rodríguez, P.Universidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias (author)
  • Shectman, S.A.Carnegie Observatories (author)
  • Smith, A. M SDeutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR) (author)
  • Thompson, I.B.Carnegie Observatories (author)
  • Van Eylen, V.Universiteit Leiden (UL),Leiden University (UL) (author)
  • Williamson, M.W.Tennessee State University (author)
  • Wittenmyer, R.A.University of Southern Queensland (author)
  • Princeton UniversityMassachusetts Institute of Technology (MIT) (creator_code:org_t)

Related titles

  • In:Astronomical Journal: American Astronomical Society154:6, s. 226-1538-38810004-6256

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