VaTEST I: validation of sub-Saturn exoplanet TOI-181b in narrow orbit from its host star

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dc.contributor.authorMistry, Priyashkumar
dc.contributor.authorPathak, Kamlesh
dc.contributor.authorLekkas, Georgios
dc.contributor.authorPrasad, Aniket
dc.contributor.authorBhattarai, Surendra
dc.contributor.authorMaity, Mousam
dc.contributor.authorBeichman, Charles A.
dc.contributor.authorCiardi, David R.
dc.contributor.authorEvans, Phil
dc.contributor.authorBieryla, Allyson
dc.contributor.authorEastman, Jason D.
dc.contributor.authorEsquerdo, Gilbert A.
dc.contributor.authorLucero, Jennifer P.
dc.date.accessioned2025-01-20T20:11:10Z
dc.date.available2025-01-20T20:11:10Z
dc.date.issued2023
dc.description.abstractWe present here a validation of sub-Saturn exoplanet TOI-181b orbiting a K spectral type star TOI-181 (mass: 0.822 +/- 0.04 M-circle dot, radius: 0.745 +/- 0.02 R-circle dot, temperature: 4994 +/- 50 K) as a part of Validation of Transiting Exoplanets using Statistical Tools (VaTEST) project. TOI-181b is a planet with radius 6.95 +/- 0.08 R-circle plus, mass 46.16 +/- 2.71 M-circle plus, orbiting in a slightly eccentric orbit with eccentricity 0.15 +/- 0.06 and semimajor axis of 0.054 +/- 0.004 au, with an orbital period of 4.5320 +/- 0.000002 d. The transit photometry data were collected using Transiting Exoplanet Survey Satellite (TESS) and spectroscopic data for radial velocity analysis were collected using The European Southern Observatory's (ESO) High Accuracy Radial Velocity Planet Searcher (HARPS) telescope. Based on the radial velocity best-fit model we measured RV semi-amplitude to be 20.56 +/- 2.37 m s(-1). Additionally, we used VESPA and TRICERATOPS to compute the False Positive Probability (FPP), and the findings were FPP values of 1.68 x 10(-14) and 3.81 x 10(-04), respectively, which are significantly lower than the 1 per cent threshold. The finding of TOI-181b is significant in the perspective of future work on the formation and migration history of analogous planetary systems since warm sub-Saturns are uncommon in the known sample of exoplanets.
dc.description.funderNASA
dc.fuente.origenWOS
dc.identifier.doi10.1093/mnras/stad543
dc.identifier.eissn1365-2966
dc.identifier.issn0035-8711
dc.identifier.urihttps://doi.org/10.1093/mnras/stad543
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/92126
dc.identifier.wosidWOS:000961957300011
dc.issue.numero1
dc.language.isoen
dc.pagina.final1078
dc.pagina.inicio1066
dc.revistaMonthly notices of the royal astronomical society
dc.rightsacceso restringido
dc.subjecttechniques: photometric
dc.subjecttechniques: spectroscopic
dc.subjecttechniques: radial velocities
dc.subjectmethods: statistical
dc.subject.ods13 Climate Action
dc.subject.odspa13 Acción por el clima
dc.titleVaTEST I: validation of sub-Saturn exoplanet TOI-181b in narrow orbit from its host star
dc.typeartículo
dc.volumen521
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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