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  • Hobson, Melissa J.Millennium Institute for Astrophysics,Max Planck Institute for Astronomy (author)

TOI-199 b : A Well-characterized 100 day Transiting Warm Giant Planet with TTVs Seen from Antarctica

  • Article/chapterEnglish2023

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  • 2023

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  • LIBRIS-ID:oai:lup.lub.lu.se:53b2ae60-c1fb-4141-93c7-3ccfda122170
  • https://lup.lub.lu.se/record/53b2ae60-c1fb-4141-93c7-3ccfda122170URI
  • https://doi.org/10.3847/1538-3881/acfc1dDOI

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  • Language:English
  • Summary in:English

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

Notes

  • We present the spectroscopic confirmation and precise mass measurement of the warm giant planet TOI-199 b. This planet was first identified in TESS photometry and confirmed using ground-based photometry from ASTEP in Antarctica including a full 6.5 hr long transit, PEST, Hazelwood, and LCO; space photometry from NEOSSat; and radial velocities (RVs) from FEROS, HARPS, CORALIE, and CHIRON. Orbiting a late G-type star, TOI-199 b has a 104.854 − 0.002 + 0.001 day period, a mass of 0.17 ± 0.02 M J, and a radius of 0.810 ± 0.005 R J. It is the first warm exo-Saturn with a precisely determined mass and radius. The TESS and ASTEP transits show strong transit timing variations (TTVs), pointing to the existence of a second planet in the system. The joint analysis of the RVs and TTVs provides a unique solution for the nontransiting companion TOI-199 c, which has a period of 273.69 − 0.22 + 0.26 days and an estimated mass of 0.28 − 0.01 + 0.02 M J . This period places it within the conservative habitable zone.

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  • Trifonov, TrifonLandessternwarte Heidelberg,Max Planck Institute for Astronomy,University of Sofia (author)
  • Henning, ThomasMax Planck Institute for Astronomy (author)
  • Jordán, AndrésMillennium Institute for Astrophysics,Adolfo Ibañez University (author)
  • Rojas, FelipePontifical Catholic University of Chile,Millennium Institute for Astrophysics (author)
  • Espinoza, NestorSpace Telescope Science Institute (author)
  • Brahm, RafaelAdolfo Ibañez University,Millennium Institute for Astrophysics (author)
  • Eberhardt, JanMax Planck Institute for Astronomy (author)
  • Jones, Matías I.European Southern Observatory Santiago (author)
  • Mekarnia, DjamelCôte d'Azur Observatory (author)
  • Kossakowski, DianaMax Planck Institute for Astronomy (author)
  • Schlecker, MartinUniversity of Arizona (author)
  • Pinto, Marcelo TalaAdolfo Ibañez University,Millennium Institute for Astrophysics (author)
  • Torres Miranda, Pascal JoséMillennium Institute for Astrophysics,Pontifical Catholic University of Chile (author)
  • Abe, LyuCôte d'Azur Observatory (author)
  • Barkaoui, KhalidInstituto de Astrofísica de Canarias,Massachusetts Institute of Technology,University of Liège (author)
  • Bendjoya, PhilippeCôte d'Azur Observatory (author)
  • Bouchy, FrançoisUniversity of Geneva (author)
  • Buttu, MarcoINAF Caligari Observatory (author)
  • Carleo, IlariaInstituto de Astrofísica de Canarias (author)
  • Collins, Karen A.Harvard–Smithsonian Center for Astrophysics (author)
  • Colón, Knicole D.NASA Goddard Space Flight Center (author)
  • Crouzet, NicolasLeiden University (author)
  • Dragomir, DianaUniversity of New Mexico (author)
  • Dransfield, GeorginaUniversity of Birmingham (author)
  • Gasparetto, ThomasCNR Istituto per le Tecnologie Applicate ai Beni Culturali (CNR-ITABC) (author)
  • Goeke, Robert F.Massachusetts Institute of Technology (author)
  • Guillot, TristanCôte d'Azur Observatory (author)
  • Günther, Maximilian N.European Space Research and Technology Centre (ESA/ESTEC) (author)
  • Howard, SaburoCôte d'Azur Observatory (author)
  • Jenkins, Jon M.NASA Ames Research Center (author)
  • Korth, JudithLund University,Lunds universitet,Astronomi - Genomgår omorganisation,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Astrofysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Lund Observatory - Undergoing reorganization,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science,Astrophysics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)ju7237ko (author)
  • Latham, David W.Harvard–Smithsonian Center for Astrophysics (author)
  • Lendl, MonikaUniversity of Geneva (author)
  • Lissauer, Jack J.NASA Ames Research Center (author)
  • Mann, Christopher R.University Of Quebec In Montreal (author)
  • Mireles, IsmaelUniversity of New Mexico (author)
  • Ricker, George R.Massachusetts Institute of Technology (author)
  • Saesen, SophieUniversity of Geneva (author)
  • Schwarz, Richard P.Harvard–Smithsonian Center for Astrophysics (author)
  • Seager, S.Massachusetts Institute of Technology (author)
  • Sefako, Ramotholo (author)
  • Shporer, AviMassachusetts Institute of Technology (author)
  • Stockdale, Chris (author)
  • Suarez, OlgaCôte d'Azur Observatory (author)
  • Tan, Thiam Guan (author)
  • Amaury, Amaury H.M.University of Birmingham (author)
  • Ulmer-Moll, SolèneUniversity of Geneva (author)
  • Vanderspek, RolandMassachusetts Institute of Technology (author)
  • Winn, Joshua N. (author)
  • Wohler, BillNASA Ames Research Center (author)
  • Zhou, George (author)
  • Millennium Institute for AstrophysicsMax Planck Institute for Astronomy (creator_code:org_t)

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  • In:Astronomical Journal166:50004-6256

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