A long-period transiting substellar companion in the super-Jupiters to brown dwarfs mass regime and a prototypical warm-Jupiter detected by TESS

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dc.contributor.authorJones, Matias I.
dc.contributor.authorReinarz, Yared
dc.contributor.authorBrahm, Rafael
dc.contributor.authorTala Pinto, Marcelo
dc.contributor.authorEberhardt, Jan
dc.contributor.authorRojas, Felipe
dc.contributor.authorTriaud, Amaury H. M. J.
dc.contributor.authorGupta, Arvind F.
dc.contributor.authorZiegler, Carl
dc.contributor.authorHobson, Melissa J.
dc.contributor.authorJordan, Andres
dc.contributor.authorHenning, Thomas
dc.contributor.authorTrifonov, Trifon
dc.contributor.authorSchlecker, Martin
dc.contributor.authorEspinoza, Nestor
dc.contributor.authorTorres-Miranda, Pascal
dc.contributor.authorSarkis, Paula
dc.contributor.authorUlmer-Moll, Solene
dc.contributor.authorLendl, Monika
dc.contributor.authorUzundag, Murat
dc.contributor.authorMoyano, Maximiliano
dc.contributor.authorHesse, Katharine
dc.contributor.authorCaldwell, Douglas A.
dc.contributor.authorShporer, Avi
dc.contributor.authorLund, Michael B.
dc.contributor.authorJenkins, Jon M.
dc.contributor.authorSeager, Sara
dc.contributor.authorWinn, Joshua N.
dc.contributor.authorRicker, George R.
dc.contributor.authorBurke, Christopher J.
dc.contributor.authorFigueira, Pedro
dc.contributor.authorPsaridi, Angelica
dc.contributor.authorAl Moulla, Khaled
dc.contributor.authorMounzer, Dany
dc.contributor.authorStanding, Matthew R.
dc.contributor.authorMartin, David V.
dc.contributor.authorDransfield, Georgina
dc.contributor.authorBaycroft, Thomas
dc.contributor.authorDragomir, Diana
dc.contributor.authorBoyle, Gavin
dc.contributor.authorSuc, Vincent
dc.contributor.authorMann, Andrew W.
dc.contributor.authorTimmermans, Mathilde
dc.contributor.authorDucrot, Elsa
dc.contributor.authorHooton, Matthew J.
dc.contributor.authorZuniga-Fernandez, Sebastian
dc.contributor.authorSebastian, Daniel
dc.contributor.authorGillon, Michael
dc.contributor.authorQueloz, Didier
dc.contributor.authorCarson, Joe
dc.contributor.authorLissauer, Jack J.
dc.date.accessioned2025-01-20T17:06:34Z
dc.date.available2025-01-20T17:06:34Z
dc.date.issued2024
dc.description.abstractWe report on the confirmation and follow-up characterization of two long-period transiting substellar companions on low-eccentricity orbits around TIC 4672985 and TOI-2529, whose transit events were detected by the TESS space mission. Ground-based photometric and spectroscopic follow-up from different facilities, confirmed the substellar nature of TIC 4672985 b, a massive gas giant in the transition between the super-Jupiters and brown dwarfs mass regime. From the joint analysis we derived the following orbital parameters: P = 69.0480(-0.0005)(+0.0004) d, M-p = 12.74(-1.01)(+1.01) M-J, R-p = 1.026(-0.067)(+0.065) R-J and e = 0.018(-0.004)(+0.004). In addition, the RV time series revealed a significant trend at the similar to 350 m s(-1) yr(-1) level, which is indicative of the presence of a massive outer companion in the system. TIC 4672985 b is a unique example of a transiting substellar companion with a mass above the deuterium-burning limit, located beyond 0.1 AU and in a nearly circular orbit. These planetary properties are difficult to reproduce from canonical planet formation and evolution models. For TOI-2529 b, we obtained the following orbital parameters: P = 64.5949(-0.0003)(+0.0003) d, M-p = 2.340(-0.195)(+0.197) M-J, R-p = 1.030(-0.050)(+0.050) R-J and e = 0.021(-0.015)(+0.024), making this object a new example of a growing population of transiting warm giant planets.
dc.fuente.origenWOS
dc.identifier.doi10.1051/0004-6361/202348147
dc.identifier.eissn1432-0746
dc.identifier.issn0004-6361
dc.identifier.urihttps://doi.org/10.1051/0004-6361/202348147
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/90804
dc.identifier.wosidWOS:001188136600004
dc.language.isoen
dc.revistaAstronomy & astrophysics
dc.rightsacceso restringido
dc.subjecttechniques: photometric
dc.subjecttechniques: radial velocities
dc.subjectplanets and satellites: composition
dc.subjectplanets and satellites: detection
dc.subjectplanets and satellites: formation
dc.subjectplanets and satellites: gaseous planets
dc.titleA long-period transiting substellar companion in the super-Jupiters to brown dwarfs mass regime and a prototypical warm-Jupiter detected by TESS
dc.typeartículo
dc.volumen683
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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