Tran, Quang H., Bowler, Brendan P., Endl, Michael, Cochran, William D., MacQueen, Phillip J., Gandolfi, Davide ORCID: 0000-0001-8627-9628, Persson, Carina M., Fridlund, Malcolm, Palle, Enric ORCID: 0000-0003-0987-1593, Nowak, Grzegorz, Deeg, Hans J., Luque, Rafael, Livingston, John H., Kabath, Petr, Skarka, Marek, Subjak, Jan, Howell, Steve B., Albrecht, Simon H., Collins, Karen A., Esposito, Massimiliano, Van Eylen, Vincent ORCID: 0000-0001-5542-8870, Grziwa, Sascha, Goffo, Elisa, Huang, Chelsea X., Jenkins, Jon M., Karjalainen, Marie ORCID: 0000-0003-0751-3231, Karjalainen, Raine ORCID: 0000-0002-2656-909X, Knudstrup, Emil ORCID: 0000-0001-7880-594X, Korth, Judith, Lam, Kristine W. F., Latham, David W., Levine, Alan M., Osborne, H. L. M., Quinn, Samuel N., Redfield, Seth, Ricker, George R., Seager, S., Serrano, Luisa Maria, Smith, Alexis M. S., Twicken, Joseph D. and Winn, Joshua N. (2022). TOI-1670 b and c: An Inner Sub-Neptune with an Outer Warm Jupiter Unlikely to Have Originated from High-eccentricity Migration. Astron. J., 163 (5). BRISTOL: IOP Publishing Ltd. ISSN 1538-3881

Full text not available from this repository.

Abstract

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.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Tran, Quang H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bowler, Brendan P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Endl, MichaelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cochran, William D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
MacQueen, Phillip J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gandolfi, DavideUNSPECIFIEDorcid.org/0000-0001-8627-9628UNSPECIFIED
Persson, Carina M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fridlund, MalcolmUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Palle, EnricUNSPECIFIEDorcid.org/0000-0003-0987-1593UNSPECIFIED
Nowak, GrzegorzUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Deeg, Hans J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Luque, RafaelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Livingston, John H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kabath, PetrUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Skarka, MarekUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Subjak, JanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Howell, Steve B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Albrecht, Simon H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Collins, Karen A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Esposito, MassimilianoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Van Eylen, VincentUNSPECIFIEDorcid.org/0000-0001-5542-8870UNSPECIFIED
Grziwa, SaschaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Goffo, ElisaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Huang, Chelsea X.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Jenkins, Jon M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Karjalainen, MarieUNSPECIFIEDorcid.org/0000-0003-0751-3231UNSPECIFIED
Karjalainen, RaineUNSPECIFIEDorcid.org/0000-0002-2656-909XUNSPECIFIED
Knudstrup, EmilUNSPECIFIEDorcid.org/0000-0001-7880-594XUNSPECIFIED
Korth, JudithUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lam, Kristine W. F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Latham, David W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Levine, Alan M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Osborne, H. L. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Quinn, Samuel N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Redfield, SethUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ricker, George R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Seager, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Serrano, Luisa MariaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Smith, Alexis M. S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Twicken, Joseph D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Winn, Joshua N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-697480
DOI: 10.3847/1538-3881/ac5c4f
Journal or Publication Title: Astron. J.
Volume: 163
Number: 5
Date: 2022
Publisher: IOP Publishing Ltd
Place of Publication: BRISTOL
ISSN: 1538-3881
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
SPIN-ORBIT MISALIGNMENT; CHAIN MONTE-CARLO; LOW-MASS STARS; RADIAL-VELOCITY; STELLAR SPIN; PLANET-SEARCH; ERROR-CORRECTION; HOT JUPITERS; TESS OBJECTS; SUPER-EARTHMultiple languages
Astronomy & AstrophysicsMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/69748

Downloads

Downloads per month over past year

Altmetric

Export

Actions (login required)

View Item View Item