Precise Transit and Radial-velocity Characterization of a Resonant Pair: The Warm Jupiter TOI-216c and Eccentric Warm Neptune TOI-216b

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dc.contributor.authorDawson, Rebekah I.
dc.contributor.authorHuang, Chelsea X.
dc.contributor.authorBrahm, Rafael
dc.contributor.authorCollins, Karen A.
dc.contributor.authorHobson, Melissa J.
dc.contributor.authorJordan, Andres
dc.contributor.authorDong, Jiayin
dc.contributor.authorKorth, Judith
dc.contributor.authorTrifonov, Trifon
dc.contributor.authorAbe, Lyu
dc.contributor.authorAgabi, Abdelkrim
dc.contributor.authorBruni, Ivan
dc.contributor.authorButler, R. Paul
dc.contributor.authorBarbieri, Mauro
dc.contributor.authorCollins, Kevin I.
dc.contributor.authorConti, Dennis M.
dc.contributor.authorCrane, Jeffrey D.
dc.contributor.authorCrouzet, Nicolas
dc.contributor.authorDransfield, Georgina
dc.contributor.authorEvans, Phil
dc.contributor.authorEspinoza, Nestor
dc.contributor.authorGan, Tianjun
dc.contributor.authorGuillot, Tristan
dc.contributor.authorHenning, Thomas
dc.contributor.authorLissauer, Jack J.
dc.contributor.authorJensen, Eric L. N.
dc.contributor.authorSainte, Wenceslas Marie
dc.contributor.authorMekarnia, Djamel
dc.contributor.authorMyers, Gordon
dc.contributor.authorNandakumar, Sangeetha
dc.contributor.authorRelles, Howard M.
dc.contributor.authorSarkis, Paula
dc.contributor.authorTorres, Pascal
dc.contributor.authorShectman, Stephen
dc.contributor.authorSchmider, Francois-Xavier
dc.contributor.authorShporer, Avi
dc.contributor.authorStockdale, Chris
dc.contributor.authorTeske, Johanna
dc.contributor.authorTriaud, Amaury H. M. J.
dc.contributor.authorWang, Sharon Xuesong
dc.contributor.authorZiegler, Carl
dc.contributor.authorRicker, G.
dc.contributor.authorVanderspek, R.
dc.contributor.authorLatham, David W.
dc.contributor.authorSeager, S.
dc.contributor.authorWinn, J.
dc.contributor.authorJenkins, Jon M.
dc.contributor.authorBouma, L. G.
dc.contributor.authorBurt, Jennifer A.
dc.contributor.authorCharbonneau, David
dc.contributor.authorLevine, Alan M.
dc.contributor.authorMcDermott, Scott
dc.contributor.authorMcLean, Brian
dc.contributor.authorRose, Mark E.
dc.contributor.authorVanderburg, Andrew
dc.contributor.authorWohler, Bill
dc.date.accessioned2025-01-20T23:51:45Z
dc.date.available2025-01-20T23:51:45Z
dc.date.issued2021
dc.description.abstractTOI-216 hosts a pair of warm, large exoplanets discovered by the TESS mission. These planets were found to be in or near the 2:1 resonance, and both of them exhibit transit timing variations (TTVs). Precise characterization of the planets' masses and radii, orbital properties, and resonant behavior can test theories for the origins of planets orbiting close to their stars. Previous characterization of the system using the first six sectors of TESS data suffered from a degeneracy between planet mass and orbital eccentricity. Radial-velocity measurements using HARPS, FEROS, and the Planet Finder Spectrograph break that degeneracy, and an expanded TTV baseline from TESS and an ongoing ground-based transit observing campaign increase the precision of the mass and eccentricity measurements. We determine that TOI-216c is a warm Jupiter, TOI-216b is an eccentric warm Neptune, and that they librate in 2:1 resonance with a moderate libration amplitude of deg, a small but significant free eccentricity of for TOI-216b, and a small but significant mutual inclination of 12-39 (95% confidence interval). The libration amplitude, free eccentricity, and mutual inclination imply a disturbance of TOI-216b before or after resonance capture, perhaps by an undetected third planet.
dc.fuente.origenWOS
dc.identifier.doi10.3847/1538-3881/abd8d0
dc.identifier.eissn1538-3881
dc.identifier.issn0004-6256
dc.identifier.urihttps://doi.org/10.3847/1538-3881/abd8d0
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/94851
dc.identifier.wosidWOS:000625759900001
dc.issue.numero4
dc.language.isoen
dc.revistaAstronomical journal
dc.rightsacceso restringido
dc.subject.ods13 Climate Action
dc.subject.odspa13 Acción por el clima
dc.titlePrecise Transit and Radial-velocity Characterization of a Resonant Pair: The Warm Jupiter TOI-216c and Eccentric Warm Neptune TOI-216b
dc.typeartículo
dc.volumen161
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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