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Article: A Pair of Warm Giant Planets near the 2:1 Mean Motion Resonance around the K-dwarf Star TOI-2202

TitleA Pair of Warm Giant Planets near the 2:1 Mean Motion Resonance around the K-dwarf Star TOI-2202
Authors
Issue Date2021
PublisherAmerican Astronomical Society, co-published with Institute of Physics Publishing, Inc. The Journal's web site is located at http://iopscience.iop.org/1538-3881
Citation
The Astronomical Journal, 2021, v. 162 n. 6, p. article no. 283 How to Cite?
AbstractTOI-2202 b is a transiting warm Jovian-mass planet with an orbital period of P = 11.91 days identified from the Full Frame Images data of five different sectors of the TESS mission. Ten TESS transits of TOI-2202 b combined with three follow-up light curves obtained with the CHAT robotic telescope show strong transit timing variations (TTVs) with an amplitude of about 1.2 hr. Radial velocity follow-up with FEROS, HARPS, and PFS confirms the planetary nature of the transiting candidate (ab = 0.096 ± 0.001 au, mb = 0.98 ± 0.06 MJup), and a dynamical analysis of RVs, transit data, and TTVs points to an outer Saturn-mass companion (ac = 0.155 ± 0.002 au, mc = 0.37 ± 0.10 MJup) near the 2:1 mean motion resonance. Our stellar modeling indicates that TOI-2202 is an early K-type star with a mass of 0.82 M⊙, a radius of 0.79 R⊙, and solar-like metallicity. The TOI-2202 system is very interesting because of the two warm Jovian-mass planets near the 2:1 mean motion resonance, which is a rare configuration, and their formation and dynamical evolution are still not well understood.
Persistent Identifierhttp://hdl.handle.net/10722/309324
ISSN
2023 Impact Factor: 5.1
2023 SCImago Journal Rankings: 1.953
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorTrifonov, T-
dc.contributor.authorBrahm, R-
dc.contributor.authorEspinoza, N-
dc.contributor.authorHenning, T-
dc.contributor.authorJordán, A-
dc.contributor.authorNesvorny, D-
dc.contributor.authorDawson, RI-
dc.contributor.authorLissauer, JJ-
dc.contributor.authorLee, MH-
dc.contributor.authorKossakowski, D-
dc.contributor.authorRojas, FI-
dc.contributor.authorHobson, MJ-
dc.contributor.authorSarkis, P-
dc.contributor.authorSchlecker, M-
dc.contributor.authorBitsch, B-
dc.contributor.authorBakos, GA-
dc.contributor.authorBarbieri, M-
dc.contributor.authorBhatti, W-
dc.contributor.authorButler, RP-
dc.contributor.authorCrane, JD-
dc.contributor.authorNandakumar, S-
dc.contributor.authorDíaz, MR-
dc.contributor.authorShectman, S-
dc.contributor.authorTeske, J-
dc.contributor.authorTorres, P-
dc.contributor.authorSuc, V-
dc.contributor.authorVines, JI-
dc.contributor.authorWang, SX-
dc.contributor.authorRicker, GR-
dc.contributor.authorShporer, A-
dc.contributor.authorVanderburg, A-
dc.contributor.authorDragomir, D-
dc.contributor.authorVanderspek, R-
dc.contributor.authorBurke, CJ-
dc.contributor.authorDaylan, T-
dc.contributor.authorShiao, B-
dc.contributor.authorJenkins, JM-
dc.contributor.authorWohler, B-
dc.contributor.authorSeager, S-
dc.contributor.authorWinn, JN-
dc.date.accessioned2021-12-29T02:13:28Z-
dc.date.available2021-12-29T02:13:28Z-
dc.date.issued2021-
dc.identifier.citationThe Astronomical Journal, 2021, v. 162 n. 6, p. article no. 283-
dc.identifier.issn0004-6256-
dc.identifier.urihttp://hdl.handle.net/10722/309324-
dc.description.abstractTOI-2202 b is a transiting warm Jovian-mass planet with an orbital period of P = 11.91 days identified from the Full Frame Images data of five different sectors of the TESS mission. Ten TESS transits of TOI-2202 b combined with three follow-up light curves obtained with the CHAT robotic telescope show strong transit timing variations (TTVs) with an amplitude of about 1.2 hr. Radial velocity follow-up with FEROS, HARPS, and PFS confirms the planetary nature of the transiting candidate (ab = 0.096 ± 0.001 au, mb = 0.98 ± 0.06 MJup), and a dynamical analysis of RVs, transit data, and TTVs points to an outer Saturn-mass companion (ac = 0.155 ± 0.002 au, mc = 0.37 ± 0.10 MJup) near the 2:1 mean motion resonance. Our stellar modeling indicates that TOI-2202 is an early K-type star with a mass of 0.82 M⊙, a radius of 0.79 R⊙, and solar-like metallicity. The TOI-2202 system is very interesting because of the two warm Jovian-mass planets near the 2:1 mean motion resonance, which is a rare configuration, and their formation and dynamical evolution are still not well understood.-
dc.languageeng-
dc.publisherAmerican Astronomical Society, co-published with Institute of Physics Publishing, Inc. The Journal's web site is located at http://iopscience.iop.org/1538-3881-
dc.relation.ispartofThe Astronomical Journal-
dc.rightsThe Astronomical Journal. Copyright © IOP Publishing.-
dc.rightsThis is an author-created, un-copyedited version of an article published in [insert name of journal]. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://dx.doi.org/[insert DOI].-
dc.titleA Pair of Warm Giant Planets near the 2:1 Mean Motion Resonance around the K-dwarf Star TOI-2202-
dc.typeArticle-
dc.identifier.emailLee, MH: mhlee@hku.hk-
dc.identifier.authorityLee, MH=rp00724-
dc.description.naturelink_to_OA_fulltext-
dc.identifier.doi10.3847/1538-3881/ac1bbe-
dc.identifier.scopuseid_2-s2.0-85120824217-
dc.identifier.hkuros331148-
dc.identifier.volume162-
dc.identifier.issue6-
dc.identifier.spagearticle no. 283-
dc.identifier.epagearticle no. 283-
dc.identifier.isiWOS:000725244600001-
dc.publisher.placeUnited States-

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