دورية أكاديمية
Early Release Science of the exoplanet WASP-39b with JWST NIRISS
| العنوان: | Early Release Science of the exoplanet WASP-39b with JWST NIRISS |
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| المؤلفون: | Feinstein, Adina D., Radica, Michael C., Welbanks, Luis, Murray, Catriona Anne, Ohno, Kazumasa, Coulombe, Louis Philippe, Espinoza, Néstor, Bean, Jacob L., Teske, Johanna K., Benneke, Björn, Line, Michael R., Rustamkulov, Zafar, Saba, Arianna, Tsiaras, Angelos, Barstow, Joanna K., Fortney, Jonathan J., Gao, Peter, Knutson, Heather A., Macdonald, Ryan J., Mikal-Evans, Thomas, Rackham, Benjamin V., Taylor, Jake, Parmentier, Vivien, Batalha, Natalie M., Berta-Thompson, Zachory K., Carter, Aarynn L., Changeat, Quentin, dos Santos, Leonardo A., Gibson, Neale P., Goyal, Jayesh M., Kreidberg, Laura, López-Morales, Mercedes, Lothringer, Joshua D., Miguel, Yamila, Molaverdikhani, Karan, Moran, Sarah E., Morello, Giuseppe, Mukherjee, Sagnick, Sing, David, Stevenson, Kevin B., Wakeford, Hannah R., Ahrer, Eva Maria, Alam, Munazza K., Alderson, Lili, Allen, Natalie H., Batalha, Natasha E., Bell, Taylor J., Blecic, Jasmina, Brande, Jonathan, Caceres, Claudio, Casewell, Sarah L., Chubb, Katy L., Crossfield, Ian J.M., Crouzet, Nicolas, Cubillos, Patricio E., Decin, Leen, Désert, Jean Michel, Harrington, Joseph, Heng, Kevin, Henning, Thomas K., Iro, Nicolas, Kempton, Eliza Miller Ricci, Kendrew, Sarah, Kirk, James, Krick, Jessica E., Lagage, Pierre Olivier, Lendl, Monika A., Mancini, Luigi, Mansfield, Megan, May, Erin M., Mayne, Nathan J., Nikolov, Nikolay K., Palle, Enric, Petit Dit de la Roche, Dominique J.M., Piaulet, Caroline, Powell, Diana K., Redfield, Seth L., Rogers, Laura K., Roman, Michael T., Roy, Pierre Alexis, Nixon, Matthew C., Schlawin, Everett, Tan, Xianyu, Tremblin, Pascal, Turner, Jake D., Venot, Olivia, Waalkes, William C., Wheatley, Peter J., Zhang, Xi |
| المساهمون: | CEA- Saclay (CEA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Centre National de la Recherche Scientifique (CNRS), Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA (UMR_7583)), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Institut de Recherche sur les Exoplanètes, National Science Foundation, NSF, (DGE-1746045), National Aeronautics and Space Administration, NASA, Entomological Society of America, ESA, Space Telescope Science Institute, STScI, Canadian Space Agency, CSA, (NAS 5-03127), Natural Sciences and Engineering Research Council of Canada, NSERC, Fonds de recherche du Québec, FRQ |
| المصدر: | ISSN: 0028-0836. |
| بيانات النشر: | HAL CCSD Nature Publishing Group |
| سنة النشر: | 2023 |
| المجموعة: | HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) |
| مصطلحات موضوعية: | [SDV]Life Sciences [q-bio] |
| الوصف: | International audience ; The Saturn-mass exoplanet WASP-39b has been the subject of extensive efforts to determine its atmospheric properties using transmission spectroscopy1–4. However, these efforts have been hampered by modelling degeneracies between composition and cloud properties that are caused by limited data quality5–9. Here we present the transmission spectrum of WASP-39b obtained using the Single-Object Slitless Spectroscopy (SOSS) mode of the Near Infrared Imager and Slitless Spectrograph (NIRISS) instrument on the JWST. This spectrum spans 0.6–2.8 μm in wavelength and shows several water-absorption bands, the potassium resonance doublet and signatures of clouds. The precision and broad wavelength coverage of NIRISS/SOSS allows us to break model degeneracies between cloud properties and the atmospheric composition of WASP-39b, favouring a heavy-element enhancement (‘metallicity’) of about 10–30 times the solar value, a sub-solar carbon-to-oxygen (C/O) ratio and a solar-to-super-solar potassium-to-oxygen (K/O) ratio. The observations are also best explained by wavelength-dependent, non-grey clouds with inhomogeneous coverageof the planet’s terminator. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/arxiv/2211.10493; info:eu-repo/semantics/altIdentifier/pmid/36623550; hal-04068669; https://hal.science/hal-04068669Test; https://hal.science/hal-04068669/documentTest; https://hal.science/hal-04068669/file/s41586-022-05674-1.pdfTest; ARXIV: 2211.10493; PUBMED: 36623550 |
| DOI: | 10.1038/s41586-022-05674-1 |
| الإتاحة: | https://doi.org/10.1038/s41586-022-05674-1Test https://hal.science/hal-04068669Test https://hal.science/hal-04068669/documentTest https://hal.science/hal-04068669/file/s41586-022-05674-1.pdfTest |
| حقوق: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.F4EA7262 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1038/s41586-022-05674-1 |
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