NGTS-11 b (TOI-1847 b): A Transiting Warm Saturn Recovered from a TESS Single-transit Event

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dc.contributor.authorGill, Samuel
dc.contributor.authorWheatley, Peter J.
dc.contributor.authorCooke, Benjamin F.
dc.contributor.authorJordan, Andres
dc.contributor.authorNielsen, Louise D.
dc.contributor.authorBayliss, Daniel
dc.contributor.authorAnderson, David R.
dc.contributor.authorVines, Jose, I
dc.contributor.authorLendl, Monika
dc.contributor.authorActon, Jack S.
dc.contributor.authorArmstrong, David J.
dc.contributor.authorBouchy, Francois
dc.contributor.authorBrahm, Rafael
dc.contributor.authorBryant, Edward M.
dc.contributor.authorBurleigh, Matthew R.
dc.contributor.authorCasewell, Sarah L.
dc.contributor.authorEigmueller, Philipp
dc.contributor.authorEspinoza, Nestor
dc.contributor.authorGillen, Edward
dc.contributor.authorGoad, Michael R.
dc.contributor.authorGrieves, Nolan
dc.contributor.authorGunther, Maximilian N.
dc.contributor.authorHenning, Thomas
dc.contributor.authorHobson, Melissa J.
dc.contributor.authorHogan, Aleisha
dc.contributor.authorJenkins, James S.
dc.contributor.authorMcCormac, James
dc.contributor.authorMoyano, Maximiliano
dc.contributor.authorOsborn, Hugh P.
dc.contributor.authorPollacco, Don
dc.contributor.authorQueloz, Didier
dc.contributor.authorRauer, Heike
dc.contributor.authorRaynard, Liam
dc.contributor.authorRojas, Felipe
dc.contributor.authorSarkis, Paula
dc.contributor.authorSmith, Alexis M. S.
dc.contributor.authorPinto, Marcelo Tala
dc.contributor.authorTilbrook, Rosanna H.
dc.contributor.authorUdry, Stephane
dc.contributor.authorWatson, Christopher A.
dc.contributor.authorWest, Richard G.
dc.date.accessioned2025-01-23T19:51:18Z
dc.date.available2025-01-23T19:51:18Z
dc.date.issued2020
dc.description.abstractWe report the discovery of NGTS-11 b (=TOI-1847b), a transiting Saturn in a 35.46 day orbit around a mid K-type star (T-eff = 5050 +/- 80 K). We initially identified the system from a single-transit event in a TESS full-frame image light curve. Following 79 nights of photometric monitoring with an NGTS telescope, we observed a second full transit of NGTS-11 b approximately one year after the TESS single-transit event. The NGTS transit confirmed the parameters of the transit signal and restricted the orbital period to a set of 13 discrete periods. We combined our transit detections with precise radial-velocity measurements to determine the true orbital period and measure the mass of the planet. We find NGTS-11 b has a radius of 0.817 +/-(0.028)(0.032) R-Jup, a mass of 0.344 +/-(0.092)(0.073) M-Jup, and an equilibrium temperature of just 435 +/-(34)(32) K, making it one of the coolest known transiting gas giants. NGTS-11 b is the first exoplanet to be discovered after being initially identified as a TESS single-transit event, and its discovery highlights the power of intense photometric monitoring in recovering longer-period transiting exoplanets from single-transit events.
dc.fuente.origenWOS
dc.identifier.doi10.3847/2041-8213/ab9eb9
dc.identifier.eissn2041-8213
dc.identifier.issn2041-8205
dc.identifier.urihttps://doi.org/10.3847/2041-8213/ab9eb9
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/100573
dc.identifier.wosidWOS:000553513300001
dc.issue.numero1
dc.language.isoen
dc.revistaAstrophysical journal letters
dc.rightsacceso restringido
dc.subject.ods13 Climate Action
dc.subject.odspa13 Acción por el clima
dc.titleNGTS-11 b (TOI-1847 b): A Transiting Warm Saturn Recovered from a TESS Single-transit Event
dc.typeartículo
dc.volumen898
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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