دورية أكاديمية
Nightside clouds and disequilibrium chemistry on the hot Jupiter WASP-43b.
| العنوان: | Nightside clouds and disequilibrium chemistry on the hot Jupiter WASP-43b. |
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| المؤلفون: | Bell TJ; BAER Institute, NASA Ames Research Center, Moffet Field, CA USA.; Space Science and Astrobiology Division, NASA Ames Research Center, Moffett Field, CA USA., Crouzet N; Leiden Observatory, University of Leiden, Leiden, The Netherlands., Cubillos PE; INAF - Osservatorio Astrofisico di Torino, Turin, Italy.; Space Research Institute, Austrian Academy of Sciences, Graz, Austria., Kreidberg L; Max Planck Institute for Astronomy, Heidelberg, Germany., Piette AAA; Earth and Planets Laboratory, Carnegie Institution for Science, Washington DC, USA., Roman MT; School of Physics and Astronomy, University of Leicester, Leicester, UK.; Universidad Adolfo Ibáñez: Peñalolén, Santiago, Chile., Barstow JK; School of Physical Sciences, The Open University, Milton Keynes, UK., Blecic J; Department of Physics, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates.; Center for Astro, Particle and Planetary Physics (CAP3), New York University Abu Dhabi, Abu Dhabi, United Arab Emirates., Carone L; Space Research Institute, Austrian Academy of Sciences, Graz, Austria., Coulombe LP; Department of Physics and Trottier Institute for Research on Exoplanets, Université de Montréal, Montreal, Quebec Canada., Ducrot E; Université Paris-Saclay, Université Paris Cité, CEA, CNRS, AIM, Gif-sur-Yvette, France., Hammond M; Atmospheric, Oceanic and Planetary Physics, Department of Physics, University of Oxford, Oxford, UK., Mendonça JM; DTU Space, Technical University of Denmark, Kongens Lyngby, Denmark., Moses JI; Space Science Institute, Boulder, CO USA., Parmentier V; Université Côte d'Azur, Observatoire de la Côte d'Azur, CNRS Laboratoire Lagrange, Nice, France., Stevenson KB; Johns Hopkins APL, Laurel, MD USA., Teinturier L; LESIA, Observatoire de Paris, Université PSL, Sorbonne Université, Université Paris Cité, CNRS, Meudon, France.; Laboratoire de Météorologie Dynamique, IPSL, CNRS, Sorbonne Université, Ecole Normale Supérieure, Université PSL, Ecole Polytechnique, Institut Polytechnique de Paris, Paris, France., Zhang M; Department of Astronomy and Astrophysics, University of Chicago, Chicago, IL USA., Batalha NM; Department of Astronomy and Astrophysics, University of California, Santa Cruz, Santa Cruz, CA USA., Bean JL; Department of Astronomy and Astrophysics, University of Chicago, Chicago, IL USA., Benneke B; Department of Physics and Trottier Institute for Research on Exoplanets, Université de Montréal, Montreal, Quebec Canada., Charnay B; LESIA, Observatoire de Paris, Université PSL, Sorbonne Université, Université Paris Cité, CNRS, Meudon, France., Chubb KL; Centre for Exoplanet Science, University of St Andrews, St Andrews, UK., Demory BO; Center for Space and Habitability, University of Bern, Bern, Switzerland.; Space and Planetary Sciences, Institute of Physics, University of Bern, Bern, Switzerland., Gao P; Earth and Planets Laboratory, Carnegie Institution for Science, Washington DC, USA., Lee EKH; Center for Space and Habitability, University of Bern, Bern, Switzerland., López-Morales M; Center for Astrophysics | Harvard & Smithsonian, Cambridge, MA USA., Morello G; Instituto de Astrofsica de Canarias (IAC), Tenerife, Spain.; INAF- Palermo Astronomical Observatory, Piazza del Parlamento, Palermo, Italy.; Department of Space, Earth and Environment, Chalmers University of Technology, Gothenburg, Sweden., Rauscher E; Department of Astronomy, University of Michigan, Ann Arbor, MI USA., Sing DK; Department of Earth and Planetary Sciences, Johns Hopkins University, Baltimore, MD USA.; Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD USA., Tan X; Atmospheric, Oceanic and Planetary Physics, Department of Physics, University of Oxford, Oxford, UK.; Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, People's Republic of China.; School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, People's Republic of China., Venot O; Université Paris Cité and Univ Paris Est Creteil, CNRS, LISA, Paris, France., Wakeford HR; School of Physics, University of Bristol, Bristol, UK., Aggarwal K; Indian Institute of Technology, Indore, India., Ahrer EM; Centre for Exoplanets and Habitability, University of Warwick, Coventry, UK.; Department of Physics, University of Warwick, Coventry, UK., Alam MK; Earth and Planets Laboratory, Carnegie Institution for Science, Washington DC, USA., Baeyens R; Anton Pannekoek Institute for Astronomy, University of Amsterdam, Amsterdam, The Netherlands., Barrado D; Departamento de Astrofsica, Centro de Astrobiologa (CAB, CSIC-INTA), ESAC campus, Madrid, Spain., Caceres C; Instituto de Astrofisica, Facultad Ciencias Exactas, Universidad Andres Bello, Santiago, Chile.; Centro de Astrofisica y Tecnologias Afines (CATA), Santiago, Chile.; Nucleo Milenio de Formacion Planetaria (NPF), Valparaíso, Chile., Carter AL; Department of Astronomy and Astrophysics, University of California, Santa Cruz, Santa Cruz, CA USA., Casewell SL; School of Physics and Astronomy, University of Leicester, Leicester, UK., Challener RC; Department of Astronomy, University of Michigan, Ann Arbor, MI USA., Crossfield IJM; Department of Physics and Astronomy, University of Kansas, Lawrence, KS USA., Decin L; Institute of Astronomy, Department of Physics and Astronomy, KU Leuven, Leuven, Belgium., Désert JM; Anton Pannekoek Institute for Astronomy, University of Amsterdam, Amsterdam, The Netherlands., Dobbs-Dixon I; Department of Physics, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates., Dyrek A; Université Paris-Saclay, Université Paris Cité, CEA, CNRS, AIM, Gif-sur-Yvette, France., Espinoza N; Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD USA.; Space Telescope Science Institute, Baltimore, MD USA., Feinstein AD; Department of Astronomy and Astrophysics, University of Chicago, Chicago, IL USA.; Department of Astrophysical and Planetary Sciences, University of Colorado Boulder, Boulder, CO USA., Gibson NP; School of Physics, Trinity College Dublin, Dublin, Ireland., Harrington J; Planetary Sciences Group, Department of Physics and Florida Space Institute, University of Central Florida, Orlando, FL USA., Helling C; Space Research Institute, Austrian Academy of Sciences, Graz, Austria., Hu R; Astrophysics Section, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA USA.; Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA USA., Iro N; Institute of Planetary Research-Extrasolar Planets And Atmospheres, German Aerospace Center (DLR), Berlin, Germany., Kempton EM; Department of Astronomy, University of Maryland, College Park, MD USA., Kendrew S; European Space Agency, Space Telescope Science Institute, Baltimore, MD USA., Komacek TD; Department of Astronomy, University of Maryland, College Park, MD USA., Krick J; California Institute of Technology, IPAC, Pasadena, CA USA., Lagage PO; Université Paris-Saclay, Université Paris Cité, CEA, CNRS, AIM, Gif-sur-Yvette, France., Leconte J; Laboratoire d'Astrophysique de Bordeaux, Université de Bordeaux, Pessac, France., Lendl M; Département d'Astronomie, Université de Genève, Sauverny, Switzerland., Lewis NT; Department of Mathematics and Statistics, University of Exeter, Exeter, UK., Lothringer JD; Department of Physics, Utah Valley University, Orem, UT USA., Malsky I; Department of Astronomy, University of Michigan, Ann Arbor, MI USA., Mancini L; Max Planck Institute for Astronomy, Heidelberg, Germany.; Department of Physics, University of Rome 'Tor Vergata', Rome, Italy.; INAF - Turin Astrophysical Observatory, Turin, Italy., Mansfield M; Steward Observatory, University of Arizona, Tucson, AZ USA., Mayne NJ; Department of Physics and Astronomy, Faculty of Environment, Science and Economy, University of Exeter, Exeter, UK., Evans-Soma TM; Max Planck Institute for Astronomy, Heidelberg, Germany.; School of Information and Physical Sciences, University of Newcastle, Callaghan, NSW Australia., Molaverdikhani K; Universitäts-Sternwarte, Ludwig-Maximilians-Universität München, Munich, Germany.; Exzellenzcluster Origins, Garching, Germany., Nikolov NK; Space Telescope Science Institute, Baltimore, MD USA., Nixon MC; Department of Astronomy, University of Maryland, College Park, MD USA., Palle E; Instituto de Astrofsica de Canarias (IAC), Tenerife, Spain., Petit Dit de la Roche DJM; Département d'Astronomie, Université de Genève, Sauverny, Switzerland., Piaulet C; Department of Physics and Trottier Institute for Research on Exoplanets, Université de Montréal, Montreal, Quebec Canada., Powell D; Center for Astrophysics | Harvard & Smithsonian, Cambridge, MA USA., Rackham BV; Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA USA.; Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA USA., Schneider AD; Institute of Astronomy, Department of Physics and Astronomy, KU Leuven, Leuven, Belgium.; Centre for ExoLife Sciences, Niels Bohr Institute, Copenhagen, Denmark., Steinrueck ME; Max Planck Institute for Astronomy, Heidelberg, Germany., Taylor J; Department of Physics and Trottier Institute for Research on Exoplanets, Université de Montréal, Montreal, Quebec Canada.; Atmospheric, Oceanic and Planetary Physics, Department of Physics, University of Oxford, Oxford, UK., Welbanks L; School of Earth and Space Exploration, Arizona State University, Tempe, AZ USA., Yurchenko SN; Department of Physics and Astronomy, University College London, London, UK., Zhang X; Department of Earth and Planetary Sciences, University of California, Santa Cruz, Santa Cruz, CA USA., Zieba S; Leiden Observatory, University of Leiden, Leiden, The Netherlands.; Max Planck Institute for Astronomy, Heidelberg, Germany. |
| المصدر: | Nature astronomy [Nat Astron] 2024; Vol. 8 (7), pp. 879-898. Date of Electronic Publication: 2024 Apr 30. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Springer Nature Country of Publication: England NLM ID: 101738506 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2397-3366 (Electronic) Linking ISSN: 23973366 NLM ISO Abbreviation: Nat Astron Subsets: PubMed not MEDLINE |
| أسماء مطبوعة: | Original Publication: [London] : Springer Nature, [2017]- |
| مستخلص: | Hot 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 (2 σ 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. Competing Interests: Competing interestsThe authors declare no competing interests. (© The Author(s) 2024.) |
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| فهرسة مساهمة: | Keywords: Exoplanets |
| تواريخ الأحداث: | Date Created: 20240725 Latest Revision: 20240726 |
| رمز التحديث: | 20240726 |
| مُعرف محوري في PubMed: | PMC11263128 |
| DOI: | 10.1038/s41550-024-02230-x |
| PMID: | 39049827 |
| قاعدة البيانات: | MEDLINE |
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Full Text Finder | تدمد: | 2397-3366 |
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| DOI: | 10.1038/s41550-024-02230-x |