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TOI-908 : a planet at the edge of the Neptune desert transiting a G-type star

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dc.contributor.authorHawthorn, Faith
dc.contributor.authorBayliss, Daniel
dc.contributor.authorArmstrong, David J.
dc.contributor.authorFernández, Jorge Fernández
dc.contributor.authorOsborn, Ares
dc.contributor.authorSousa, Sérgio G.
dc.contributor.authorAdibekyan, Vardan
dc.contributor.authorDavoult, Jeanne
dc.contributor.authorCollins, Karen A.
dc.contributor.authorAlibert, Yann
dc.contributor.authorBarros, Susana C. C.
dc.contributor.authorBouchy, François
dc.contributor.authorBrogi, Matteo
dc.contributor.authorCiardi, David R.
dc.contributor.authorDaylan, Tansu
dc.contributor.authorMena, Elisa Delgado
dc.contributor.authorDemangeon, Olivier D. S.
dc.contributor.authorDíaz, Rodrigo F.
dc.contributor.authorGan, Tianjun
dc.contributor.authorHorne, Keith
dc.contributor.authorHoyer, Sergio
dc.contributor.authorLevine, Alan M.
dc.contributor.authorLillo-Box, Jorge
dc.contributor.authorNielsen, Louise D.
dc.contributor.authorOsborn, Hugh P.
dc.contributor.authorRicker, George R.
dc.contributor.authorRodrigues, José
dc.contributor.authorSantos, Nuno C.
dc.contributor.authorSchwarz, Richard P.
dc.contributor.authorSeager, Sara
dc.contributor.authorBell, Juan Serrano
dc.contributor.authorShporer, Avi
dc.contributor.authorStockdale, Chris
dc.contributor.authorStrøm, Paul A.
dc.contributor.authorTenenbaum, Peter
dc.contributor.authorUdry, Stéphane
dc.contributor.authorWheatley, Peter J.
dc.contributor.authorWinn, Joshua N.
dc.contributor.authorZiegler, Carl
dc.date.accessioned2023-07-28T11:30:03Z
dc.date.available2023-07-28T11:30:03Z
dc.date.issued2023-09-01
dc.identifier290498145
dc.identifier777bf560-c312-4045-b9a9-71060ba36b47
dc.identifier85168140161
dc.identifier.citationHawthorn , F , Bayliss , D , Armstrong , D J , Fernández , J F , Osborn , A , Sousa , S G , Adibekyan , V , Davoult , J , Collins , K A , Alibert , Y , Barros , S C C , Bouchy , F , Brogi , M , Ciardi , D R , Daylan , T , Mena , E D , Demangeon , O D S , Díaz , R F , Gan , T , Horne , K , Hoyer , S , Levine , A M , Lillo-Box , J , Nielsen , L D , Osborn , H P , Ricker , G R , Rodrigues , J , Santos , N C , Schwarz , R P , Seager , S , Bell , J S , Shporer , A , Stockdale , C , Strøm , P A , Tenenbaum , P , Udry , S , Wheatley , P J , Winn , J N & Ziegler , C 2023 , ' TOI-908 : a planet at the edge of the Neptune desert transiting a G-type star ' , Monthly Notices of the Royal Astronomical Society , vol. 524 , no. 3 , pp. 3877–3893 . https://doi.org/10.1093/mnras/stad1840en
dc.identifier.issn0035-8711
dc.identifier.otherArXiv: http://arxiv.org/abs/2306.09758v1
dc.identifier.urihttps://hdl.handle.net/10023/28054
dc.descriptionFunding: FH is supported by an STFC studentship. JFF is supported by an STFC studentship. AO is supported by an STFC studentship. This work was supported by the UKRI Frontier research scheme (EP/X027562/1). DJA is supported by UKRI through the STFC (ST/R00384X/1) and EPSRC (EP/X027562/1). This work was supported by Fundação para a Ciência e a Tecnologia (FCT) and Fundo Europeu de Desenvolvimento Regional (FEDER) via COMPETE2020 through the research grants UIDB/04434/2020, UIDP/04434/2020. JL-B acknowledges financial support received from "la Caixa" Foundation (ID 100010434) and from the European Unions Horizon 2020 research and innovation programme under the Marie Slodowska-Curie grant agreement No 847648, with fellowship code LCF/BQ/PI20/11760023. This research has also been partly funded by the Spanish State Research Agency (AEI) Project No.PID2019-107061GB-C61. YA and JD acknowledge the support of the Swiss National Fund under grant 200020-172746. MB acknowledges support from the STFC research grant ST/T000406/1. SH acknowledges CNES funding through the grant 837319.en
dc.description.abstractWe present the discovery of an exoplanet transiting TOI-908 (TIC-350153977) using data from TESS sectors 1, 12, 13, 27, 28 and 39. TOI-908 is a T = 10.7 mag G-dwarf (Teff = 5626 ± 61 K) solar-like star with a mass of 0.950 ± 0.010 M⊙ and a radius of 1.028 ± 0.030 R⊙. The planet, TOI-908 b, is a 3.18 ± 0.16 R⊕ planet in a 3.18 day orbit. Radial velocity measurements from HARPS reveal TOI-908 b has a mass of approximately 16.1 ± 4.1 M⊕, resulting in a bulk planetary density of 2.7+0.2-0.4 g cm-3. TOI-908 b lies in a sparsely-populated region of parameter space known as the Neptune desert. The planet likely began its life as a sub-Saturn planet before it experienced significant photoevaporation due to X-rays and extreme ultraviolet radiation from its host star, and is likely to continue evaporating, losing a significant fraction of its residual envelope mass.
dc.format.extent17
dc.format.extent3864370
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Societyen
dc.subjectPlanets and satellites: detectionen
dc.subjectStars: individual: TOI-908 (TIC-350153977, GAIA DR3 46192380870592067842)en
dc.subjectTechniques: photometricen
dc.subjectTechniques: radial velocitiesen
dc.subjectQB Astronomyen
dc.subjectDASen
dc.subjectMCCen
dc.subject.lccQBen
dc.titleTOI-908 : a planet at the edge of the Neptune desert transiting a G-type staren
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. St Andrews Centre for Exoplanet Scienceen
dc.identifier.doi10.1093/mnras/stad1840
dc.description.statusPeer revieweden


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