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TOI-1670 b and c: A...
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Tran, Quang H.The University of Texas at Austin, USA
(author)
TOI-1670 b and c: An Inner Sub-Neptune with an Outer Warm Jupiter Unlikely to Have Originated from High-eccentricity Migration
- Article/chapterEnglish2022
Publisher, publication year, extent ...
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2022-04-21
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American Astronomical Society,2022
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electronicrdacarrier
Numbers
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LIBRIS-ID:oai:research.chalmers.se:a7cd38ad-a243-4eac-b65b-c45158896cf1
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https://doi.org/10.3847/1538-3881/ac5c4fDOI
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https://research.chalmers.se/publication/530213URI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:art swepub-publicationtype
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Subject category:ref swepub-contenttype
Notes
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We report the discovery of two transiting planets around the bright (V = 9.9 mag) main-sequence F7 star TOI-1670 by the Transiting Exoplanet Survey Satellite. TOI-1670 b is a sub-Neptune (R-b = 2.06(-0.15)(+0.19) R-circle plus) on a 10.9 day orbit, and TOI-1670 c is a warm Jupiter (R-c= 0.987(-0.025)(+0.025) R-Jup) on a 40.7 day orbit. Using radial velocity observations gathered with the Tull Coude Spectrograph on the Harlan J. Smith telescope and HARPS-N on the Telescopio Nazionale Galileo, we find a planet mass of M-c = 0.63(-0.08)(+0.09) M(Jup )for the outer warm Jupiter, implying a mean density of rho(c) = 0.81(-0.11)(+0.13) g cm(-3). The inner sub-Neptune is undetected in our radial velocity data (M-b < 0.13 M-Jup at the 99% confidence level). Multiplanet systems like TOI-1670 hosting an outer warm Jupiter on a nearly circular orbit (l(e) = 0.09(-0.04)(+0.05)) and one or more inner coplanar planets are more consistent with "gentle" formation mechanisms such as disk migration or in situ formation rather than high-eccentricity migration. Of the 11 known systems with a warm Jupiter and a smaller inner companion, eight (73%) are near a low-order mean-motion resonance, which can be a signature of migration. TOI-1670 joins two other systems (27% of this subsample) with period commensurabilities greater than 3, a common feature of in situ formation or halted inward migration. TOI-1670 and the handful of similar systems support a diversity of formation pathways for warm Jupiters.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
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Bowler, Brendan P.The University of Texas at Austin, USA
(author)
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Endl, MichaelThe University of Texas at Austin, USA,The University of Texas at Austin, USA
(author)
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Cochran, William D.The University of Texas at Austin, USA,The University of Texas at Austin, USA
(author)
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MacQueen, Phillip J.The University of Texas at Austin, USA
(author)
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Gandolfi, DavideUniversita degli Studi di Torino,University of Turin
(author)
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Persson, Carina,1964Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)carina64
(author)
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Fridlund, Malcolm,1952Universiteit Leiden (UL),Leiden University (UL),Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)malfri
(author)
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Palle, EnricInstituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
(author)
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Nowak, GrzegorzUniversidad de la Laguna,University of La Laguna,Instituto de Astrofísica de Canarias
(author)
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Deeg, Hans J.Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
(author)
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Luque, RafaelInstituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA)
(author)
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Livingston, John H.University of Tokyo, Japan,Astrobiology Center, Japan,National Institutes of Natural Sciences (NINS)
(author)
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Kabath, PetrCzech Academy of Sciences
(author)
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Skarka, MarekMasarykova Univerzita,Masaryk University,Czech Academy of Sciences
(author)
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Subjak, JanCzech Academy of Sciences,Univerzita Karlova,Charles University
(author)
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Howell, Steve B.NASA Ames Research Center
(author)
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Albrecht, Simon H.Århus Universitet,Aarhus University
(author)
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Collins, Karen A.Harvard-Smithsonian Center for Astrophysics
(author)
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Esposito, MassimilianoThüringer Landessternwarte Tautenburg
(author)
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Van Eylen, V.University College London (UCL)
(author)
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Grziwa, SaschaUniversität zu Köln,University of Cologne
(author)
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Goffo, ElisaUniversita degli Studi di Torino,University of Turin,Thüringer Landessternwarte Tautenburg
(author)
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Huang, Chelsea X.Massachusetts Institute of Technology (MIT)
(author)
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Jenkins, Jon M.NASA Ames Research Center
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Karjalainen, MarieCzech Academy of Sciences
(author)
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Karjalainen, RaineCzech Academy of Sciences
(author)
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Knudstrup, EmilÅrhus Universitet,Aarhus University
(author)
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Korth, Judith,1987Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)korth
(author)
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Lam, Kristine W. F.Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
(author)
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Latham, David W.Harvard-Smithsonian Center for Astrophysics
(author)
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Levine, Alan M.Massachusetts Institute of Technology (MIT)
(author)
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Osborne, H. L. M.University College London (UCL)
(author)
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Quinn, Samuel N.Harvard-Smithsonian Center for Astrophysics
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Redfield, SethWesleyan University
(author)
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Ricker, George R.Massachusetts Institute of Technology (MIT)
(author)
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Seager, S.Massachusetts Institute of Technology (MIT)
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Serrano, Luisa MariaUniversita degli Studi di Torino,University of Turin
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Smith, Alexis M. S.Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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Twicken, Joseph D.SETI Institute,NASA Ames Research Center
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Winn, Joshua N.Princeton University
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The University of Texas at Austin, USAUniversita degli Studi di Torino
(creator_code:org_t)
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In:Astronomical Journal: American Astronomical Society163:51538-38810004-6256
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Tran, Quang H.
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Bowler, Brendan ...
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Endl, Michael
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Cochran, William ...
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MacQueen, Philli ...
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Gandolfi, Davide
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Persson, Carina, ...
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Fridlund, Malcol ...
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Palle, Enric
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Nowak, Grzegorz
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Deeg, Hans J.
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Luque, Rafael
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Livingston, John ...
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Kabath, Petr
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Skarka, Marek
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Subjak, Jan
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Howell, Steve B.
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Albrecht, Simon ...
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Collins, Karen A ...
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Esposito, Massim ...
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Van Eylen, V.
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Grziwa, Sascha
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Goffo, Elisa
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Huang, Chelsea X ...
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Jenkins, Jon M.
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Karjalainen, Mar ...
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Knudstrup, Emil
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Korth, Judith, 1 ...
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Latham, David W.
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Ricker, George R ...
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Serrano, Luisa M ...
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Smith, Alexis M. ...
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