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  • Diaz, Matias R.Universidad de Chile (UCH),University of Chile (UCH) (author)

TOI-132 b: A short-period planet in the Neptune desert transiting a V=11.3 G-type star

  • Article/chapterEnglish2020

Publisher, publication year, extent ...

  • 2020-01-29
  • Oxford University Press (OUP),2020
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:research.chalmers.se:e1de471b-8089-4903-8794-6b46c1138a83
  • https://doi.org/10.1093/mnras/staa277DOI
  • https://research.chalmers.se/publication/515645URI
  • https://research.chalmers.se/publication/516155URI
  • https://research.chalmers.se/publication/519500URI

Supplementary language notes

  • Language:English
  • Summary in:English

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

Notes

  • The Neptune desert is a feature seen in the radius-period plane, whereby a notable dearth of short period, Neptune-like planets is found. Here, we report the Transiting Exoplanet Survey Satellite (TESS) discovery of a new short-period planet in the Neptune desert, orbiting the G-type dwarf TYC 8003-1117-1 (TOI-132). TESS photometry shows transit-like dips at the level of similar to 1400 ppm occurring every similar to 2.11 d. High-precision radial velocity follow-up with High Accuracy Radial Velocity Planet Searcher confirmed the planetary nature of the transit signal and provided a semi-amplitude radial velocity variation of 11.38(-0.85)(+0.84) m s(-1), which, when combined with the stellar mass of 0.97 +/- 0.06 M-circle dot, provides a planetary mass of 22.40(-1.92)(+1.90) M-circle plus. Modelling the TESS light curve returns a planet radius of 3.42(-0.14)(+0.13) R-circle plus , and therefore the planet bulk density is found to be 3.08(-0.46)(+0.44) g cm(-3). Planet structure models suggest that the bulk of the planet mass is in the form of a rocky core, with an atmospheric mass fraction of 4.3(-2.3)(+1.2) percent. TOI-132 b is a TESS Level 1 Science Requirement candidate, and therefore priority follow-up will allow the search for additional planets in the system, whilst helping to constrain low-mass planet formation and evolution models, particularly valuable for better understanding of the Neptune desert.

Subject headings and genre

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  • Jenkins, James S.Universidad de Chile (UCH),University of Chile (UCH) (author)
  • Gandolfi, DavideUniversita degli Studi di Torino,University of Turin (author)
  • Lopez, Eric D.NASA Goddard Space Flight Center (author)
  • Soto, Maritza G.Queen Mary University of London (author)
  • Cortes-Zuleta, PiaUniversidad de Chile (UCH),University of Chile (UCH) (author)
  • Berdinas, Zaira M.Universidad de Chile (UCH),University of Chile (UCH) (author)
  • Stassun, Keivan G.Vanderbilt University,Fisk University (author)
  • Collins, Karen A.Harvard-Smithsonian Center for Astrophysics (author)
  • Vines,Universidad de Chile (UCH),University of Chile (UCH) (author)
  • Ziegler, CarlUniversity of Toronto (author)
  • Fridlund, Malcolm,1952Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)malfri (author)
  • Jensen, Eric L. N.Swarthmore College (author)
  • Murgas, FelipeInstituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna (author)
  • Santerne, AlexandreAix-Marseille Université,Aix Marseille University (author)
  • Wilson, Paul A.The University of Warwick (author)
  • Esposito, MassimilianoThüringer Landessternwarte Tautenburg (author)
  • Hatzes, Artie P.Thüringer Landessternwarte Tautenburg (author)
  • Johnson, Marshall C.Las Cumbres Observatory Global Telescope Network, Inc (author)
  • Lam, Kristine W. F.Technische Universität Berlin (author)
  • Livingston, John H.University of Tokyo, Japan (author)
  • Van Eylen, VincentPrinceton University,University College London (UCL) (author)
  • Narita, NorioNational Astronomical Observatory of Japan,Instituto de Astrofísica de Canarias,Japan Science and Technology Agency (JST) (author)
  • Briceno, Cesar (author)
  • Collins,George Mason University (author)
  • Csizmadia, SzilardDeutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR) (author)
  • Fausnaugh, MichaelMassachusetts Institute of Technology (MIT) (author)
  • Gan, TianjunTsinghua University (author)
  • Garcia, Rafael A.Université Paris-Saclay,University Paris-Saclay (author)
  • Georgieva, Iskra,1987Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)iskrag (author)
  • Glidden, AnaMassachusetts Institute of Technology (MIT) (author)
  • Gonzalez-Cuesta, LuciaInstituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna (author)
  • Jenkins, Jon M.NASA Ames Research Center (author)
  • Latham, David W.Harvard-Smithsonian Center for Astrophysics (author)
  • Law, Nicholas M.The University of North Carolina System (author)
  • Mann, Andrew W.The University of North Carolina System (author)
  • Mathur, SavitaUniversidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias (author)
  • Mireles, IsmaelMassachusetts Institute of Technology (MIT) (author)
  • Morris, RobertSETI Institute,NASA Ames Research Center (author)
  • Palle, EnricUniversidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias (author)
  • Persson, Carina,1964Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)carina64 (author)
  • Ricker, GeorgeMassachusetts Institute of Technology (MIT) (author)
  • Rinehart, StephenNASA Goddard Space Flight Center (author)
  • Rose, Mark E.NASA Ames Research Center (author)
  • Seager, SaraMassachusetts Institute of Technology (MIT) (author)
  • Smith, Jeffrey C.SETI Institute,NASA Ames Research Center (author)
  • Tan, Thiam-Guan (author)
  • Tokovinin, Andrei (author)
  • Vanderburg, AndrewThe University of Texas at Austin, USA (author)
  • Vanderspek, RolandMassachusetts Institute of Technology (MIT) (author)
  • Winn, Joshua N.Princeton University (author)
  • Yahalomi, Daniel A.Harvard-Smithsonian Center for Astrophysics (author)
  • Universidad de Chile (UCH)Universita degli Studi di Torino (creator_code:org_t)

Related titles

  • In:Monthly Notices of the Royal Astronomical Society: Oxford University Press (OUP)493:1, s. 973-9850035-87111365-2966

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