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dc.contributor.authorBell, Taylor J.
dc.contributor.authorCrouzet, Nicolas
dc.contributor.authorCubillos, Patricio E.
dc.contributor.authorKreidberg, Laura
dc.contributor.authorPiette, Anjali A. A.
dc.contributor.authorRoman, Michael T.
dc.contributor.authorBarstow, Joanna K.
dc.contributor.authorBlecic, Jasmina
dc.contributor.authorCarone, Ludmila
dc.contributor.authorCoulombe, Louis-Philippe
dc.contributor.authorDucrot, Elsa
dc.contributor.authorHammond, Mark
dc.contributor.authorMendonça, João M.
dc.contributor.authorMoses, Julianne I.
dc.contributor.authorParmentier, Vivien
dc.contributor.authorStevenson, Kevin B.
dc.contributor.authorTeinturier, Lucas
dc.contributor.authorZhang, Michael
dc.contributor.authorBatalha, Natalie M.
dc.contributor.authorBean, Jacob L.
dc.contributor.authorBenneke, Björn
dc.contributor.authorCharnay, Benjamin
dc.contributor.authorChubb, Katy L.
dc.contributor.authorDemory, Brice-Olivier
dc.contributor.authorGao, Peter
dc.contributor.authorLee, Elspeth K. H.
dc.contributor.authorLópez-Morales, Mercedes
dc.contributor.authorMorello, Giuseppe
dc.contributor.authorRauscher, Emily
dc.contributor.authorSing, David K.
dc.contributor.authorTan, Xianyu
dc.contributor.authorVenot, Olivia
dc.contributor.authorWakeford, Hannah R.
dc.contributor.authorAggarwal, Keshav
dc.contributor.authorAhrer, Eva-Maria
dc.contributor.authorAlam, Munazza K.
dc.contributor.authorBaeyens, Robin
dc.contributor.authorBarrado, David
dc.contributor.authorCaceres, Claudio
dc.contributor.authorCarter, Aarynn L.
dc.contributor.authorCasewell, Sarah L.
dc.contributor.authorChallener, Ryan C.
dc.contributor.authorCrossfield, Ian J. M.
dc.contributor.authorDecin, Leen
dc.contributor.authorDésert, Jean-Michel
dc.contributor.authorDobbs-Dixon, Ian
dc.contributor.authorDyrek, Achrène
dc.contributor.authorEspinoza, Néstor
dc.contributor.authorFeinstein, Adina D.
dc.contributor.authorGibson, Neale P.
dc.contributor.authorHarrington, Joseph
dc.contributor.authorHelling, Christiane
dc.contributor.authorHu, Renyu
dc.contributor.authorIro, Nicolas
dc.contributor.authorKempton, Eliza M.-R.
dc.contributor.authorKendrew, Sarah
dc.contributor.authorKomacek, Thaddeus D.
dc.contributor.authorKrick, Jessica
dc.contributor.authorLagage, Pierre-Olivier
dc.contributor.authorLeconte, Jérémy
dc.contributor.authorLendl, Monika
dc.contributor.authorLewis, Neil T.
dc.contributor.authorLothringer, Joshua D.
dc.contributor.authorMalsky, Isaac
dc.contributor.authorMancini, Luigi
dc.contributor.authorMansfield, Megan
dc.contributor.authorMayne, Nathan J.
dc.contributor.authorEvans-Soma, Thomas M.
dc.contributor.authorMolaverdikhani, Karan
dc.contributor.authorNikolov, Nikolay K.
dc.contributor.authorNixon, Matthew C.
dc.contributor.authorPalle, Enric
dc.contributor.authorPetit dit de la Roche, Dominique J. M.
dc.contributor.authorPiaulet, Caroline
dc.contributor.authorPowell, Diana
dc.contributor.authorRackham, Benjamin V.
dc.contributor.authorSchneider, Aaron D.
dc.contributor.authorSteinrueck, Maria E.
dc.contributor.authorTaylor, Jake
dc.contributor.authorWelbanks, Luis
dc.contributor.authorYurchenko, Sergei N.
dc.contributor.authorZhang, Xi
dc.contributor.authorZieba, Sebastian
dc.date.accessioned2024-05-01T11:30:05Z
dc.date.available2024-05-01T11:30:05Z
dc.date.issued2024-04-30
dc.identifier301724937
dc.identifier397d9828-2d60-4025-8821-12c2a463e369
dc.identifier.citationBell , T J , Crouzet , N , Cubillos , P E , Kreidberg , L , Piette , A A A , Roman , M T , Barstow , J K , Blecic , J , Carone , L , Coulombe , L-P , Ducrot , E , Hammond , M , Mendonça , J M , Moses , J I , Parmentier , V , Stevenson , K B , Teinturier , L , Zhang , M , Batalha , N M , Bean , J L , Benneke , B , Charnay , B , Chubb , K L , Demory , B-O , Gao , P , Lee , E K H , López-Morales , M , Morello , G , Rauscher , E , Sing , D K , Tan , X , Venot , O , Wakeford , H R , Aggarwal , K , Ahrer , E-M , Alam , M K , Baeyens , R , Barrado , D , Caceres , C , Carter , A L , Casewell , S L , Challener , R C , Crossfield , I J M , Decin , L , Désert , J-M , Dobbs-Dixon , I , Dyrek , A , Espinoza , N , Feinstein , A D , Gibson , N P , Harrington , J , Helling , C , Hu , R , Iro , N , Kempton , E M-R , Kendrew , S , Komacek , T D , Krick , J , Lagage , P-O , Leconte , J , Lendl , M , Lewis , N T , Lothringer , J D , Malsky , I , Mancini , L , Mansfield , M , Mayne , N J , Evans-Soma , T M , Molaverdikhani , K , Nikolov , N K , Nixon , M C , Palle , E , Petit dit de la Roche , D J M , Piaulet , C , Powell , D , Rackham , B V , Schneider , A D , Steinrueck , M E , Taylor , J , Welbanks , L , Yurchenko , S N , Zhang , X & Zieba , S 2024 , ' Nightside clouds and disequilibrium chemistry on the hot Jupiter WASP-43b ' , Nature Astronomy . https://doi.org/10.1038/s41550-024-02230-xen
dc.identifier.issn2397-3366
dc.identifier.otherRIS: urn:A8DB0A4CA82815AF497291AC1E0A9D89
dc.identifier.otherRIS: Bell2024
dc.identifier.urihttps://hdl.handle.net/10023/29782
dc.description.abstractHot Jupiters are among the best-studied exoplanets, but it is still poorly understood how their chemical composition and cloud properties vary with longitude. Theoretical models predict that clouds may condense on the nightside and that molecular abundances can be driven out of equilibrium by zonal winds. Here we report a phase-resolved emission spectrum of the hot Jupiter WASP-43b measured from 5 μm to 12 μm with the JWST’s Mid-Infrared Instrument. The spectra reveal a large day–night temperature contrast (with average brightness temperatures of 1,524 ± 35 K and 863 ± 23 K, respectively) and evidence for water absorption at all orbital phases. Comparisons with three-dimensional atmospheric models show that both the phase-curve shape and emission spectra strongly suggest the presence of nightside clouds that become optically thick to thermal emission at pressures greater than ~100 mbar. The dayside is consistent with a cloudless atmosphere above the mid-infrared photosphere. Contrary to expectations from equilibrium chemistry but consistent with disequilibrium kinetics models, methane is not detected on the nightside (2σ upper limit of 1–6 ppm, depending on model assumptions). Our results provide strong evidence that the atmosphere of WASP-43b is shaped by disequilibrium processes and provide new insights into the properties of the planet’s nightside clouds. However, the remaining discrepancies between our observations and our predictive atmospheric models emphasize the importance of further exploring the effects of clouds and disequilibrium chemistry in numerical models.
dc.format.extent5574092
dc.language.isoeng
dc.relation.ispartofNature Astronomyen
dc.subjectDASen
dc.titleNightside clouds and disequilibrium chemistry on the hot Jupiter WASP-43ben
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.identifier.doi10.1038/s41550-024-02230-x
dc.description.statusPeer revieweden


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