Early Release Science of the exoplanet WASP-39b with JWST NIRISS.

Autor: Feinstein AD; Department of Astronomy and Astrophysics, University of Chicago, Chicago, IL, USA. afeinstein@uchicago.edu., Radica M; Department of Physics, Université de Montréal, Montreal, Quebec, Canada.; Institute for Research on Exoplanets, Université de Montréal, Montreal, Quebec, Canada., Welbanks L; School of Earth and Space Exploration, Arizona State University, Tempe, AZ, USA., Murray CA; Department of Astrophysical and Planetary Sciences, University of Colorado Boulder, Boulder, CO, USA., Ohno K; Department of Astronomy and Astrophysics, University of California, Santa Cruz, Santa Cruz, CA, USA., Coulombe LP; Department of Physics, Université de Montréal, Montreal, Quebec, Canada.; Institute for Research on Exoplanets, Université de Montréal, Montreal, Quebec, Canada., Espinoza N; Space Telescope Science Institute, Baltimore, MD, USA.; Department of Physics & Astronomy, Johns Hopkins University, Baltimore, MD, USA., Bean JL; Department of Astronomy and Astrophysics, University of Chicago, Chicago, IL, USA., Teske JK; Earth and Planets Laboratory, Carnegie Institution for Science, Washington, DC, USA., Benneke B; Department of Physics, Université de Montréal, Montreal, Quebec, Canada.; Institute for Research on Exoplanets, Université de Montréal, Montreal, Quebec, Canada., Line MR; School of Earth and Space Exploration, Arizona State University, Tempe, AZ, USA., Rustamkulov Z; Department of Earth and Planetary Sciences, Johns Hopkins University, Baltimore, MD, USA., Saba A; Department of Physics and Astronomy, University College London, London, UK., Tsiaras A; Department of Physics and Astronomy, University College London, London, UK.; INAF - Osservatorio Astrofisico di Arcetri, Florence, Italy., Barstow JK; School of Physical Sciences, The Open University, Milton Keynes, UK., Fortney JJ; Department of Astronomy and Astrophysics, University of California, Santa Cruz, Santa Cruz, CA, USA., Gao P; Earth and Planets Laboratory, Carnegie Institution for Science, Washington, DC, USA., Knutson HA; Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, USA., MacDonald RJ; Department of Astronomy, University of Michigan, Ann Arbor, MI, USA.; Department of Astronomy, Cornell University, Ithaca, NY, USA.; Carl Sagan Institute, Cornell University, Ithaca, NY, USA., Mikal-Evans T; Max Planck Institute for Astronomy, Heidelberg, Germany., 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., Taylor J; Department of Physics, Université de Montréal, Montreal, Quebec, Canada.; Institute for Research on Exoplanets, Université de Montréal, Montreal, Quebec, Canada.; Atmospheric, Oceanic and Planetary Physics, Department of Physics, University of Oxford, Oxford, UK., Parmentier V; Atmospheric, Oceanic and Planetary Physics, Department of Physics, University of Oxford, Oxford, UK.; Observatoire de la Côte d'Azur, CNRS, Laboratoire Lagrange, Université Côte d'Azur, Nice, France., Batalha NM; Department of Astronomy and Astrophysics, University of California, Santa Cruz, Santa Cruz, CA, USA.; Astrobiology Program, UC Santa Cruz, Santa Cruz, CA, USA., Berta-Thompson ZK; Department of Astrophysical and Planetary Sciences, University of Colorado Boulder, Boulder, CO, USA., Carter AL; Department of Astronomy and Astrophysics, University of California, Santa Cruz, Santa Cruz, CA, USA., Changeat Q; Space Telescope Science Institute, Baltimore, MD, USA.; Department of Physics and Astronomy, University College London, London, UK.; European Space Agency, Space Telescope Science Institute, Baltimore, MD, USA., Dos Santos LA; Space Telescope Science Institute, Baltimore, MD, USA., Gibson NP; School of Physics, Trinity College Dublin, Dublin, Ireland., Goyal JM; School of Earth and Planetary Sciences (SEPS), National Institute of Science Education and Research (NISER), Homi Bhabha National Institute (HBNI), Jatani, India., Kreidberg L; Max Planck Institute for Astronomy, Heidelberg, Germany., López-Morales M; Center for Astrophysics | Harvard & Smithsonian, Cambridge, MA, USA., Lothringer JD; Department of Physics, Utah Valley University, Orem, UT, USA., Miguel Y; Leiden Observatory, University of Leiden, Leiden, The Netherlands.; SRON Netherlands Institute for Space Research, Leiden, The Netherlands., Molaverdikhani K; Max Planck Institute for Astronomy, Heidelberg, Germany.; Universitäts-Sternwarte, Ludwig-Maximilians-Universität München, Munich, Germany.; Exzellenzcluster Origins, Garching, Germany., Moran SE; Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA., Morello G; Instituto de Astrofísica de Canarias (IAC), Tenerife, Spain.; Departamento de Astrofísica, Universidad de La Laguna (ULL), Tenerife, Spain.; INAF - Palermo Astronomical Observatory, Palermo, Italy., Mukherjee S; Department of Astronomy and Astrophysics, University of California, Santa Cruz, Santa Cruz, CA, USA., Sing DK; Department of Physics & Astronomy, Johns Hopkins University, Baltimore, MD, USA.; Department of Earth and Planetary Sciences, Johns Hopkins University, Baltimore, MD, USA., Stevenson KB; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA., Wakeford HR; School of Physics, University of Bristol, Bristol, UK., 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., Alderson L; School of Physics, University of Bristol, Bristol, UK., Allen NH; Department of Earth and Planetary Sciences, Johns Hopkins University, Baltimore, MD, USA., Batalha NE; NASA Ames Research Center, Moffett Field, CA, USA., Bell TJ; Bay Area Environmental Research Institute, NASA Ames Research Center, Moffett Field, CA, USA., 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., Brande J; Department of Physics & Astronomy, University of Kansas, Lawrence, KS, USA., Caceres C; Instituto de Astrofísica, Universidad Andrés Bello, Santiago, Chile.; Núcleo Milenio de Formación Planetaria (NPF), Valparaíso, Chile.; Centro de Astrofísica y Tecnologías Afines (CATA), Santiago, Chile., Casewell SL; School of Physics and Astronomy, University of Leicester, Leicester, UK., Chubb KL; Centre for Exoplanet Science, University of St Andrews, St Andrews, UK., Crossfield IJM; Department of Physics & Astronomy, University of Kansas, Lawrence, KS, USA., Crouzet N; Leiden Observatory, University of Leiden, Leiden, The Netherlands., Cubillos PE; INAF - Osservatorio Astrofisico di Torino, Pino Torinese, Italy.; Space Research Institute, Austrian Academy of Sciences, Graz, Austria., 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., Harrington J; Planetary Sciences Group, Department of Physics, University of Central Florida, Orlando, FL, USA.; Florida Space Institute, University of Central Florida, Orlando, FL, USA., Heng K; Universitäts-Sternwarte, Ludwig-Maximilians-Universität München, Munich, Germany.; Department of Physics, University of Warwick, Coventry, UK.; ARTORG Center for Biomedical Engineering Research, University of Bern, Bern, Switzerland., Henning T; Max Planck Institute for Astronomy, Heidelberg, Germany., Iro N; Institute for Astrophysics, University of Vienna, Vienna, Austria., Kempton EM; Department of Astronomy, University of Maryland, College Park, MD, USA., Kendrew S; European Space Agency, Space Telescope Science Institute, Baltimore, MD, USA., Kirk J; Center for Astrophysics | Harvard & Smithsonian, Cambridge, MA, USA.; Department of Physics, Imperial College London, London, UK., Krick J; Infrared Processing and Analysis Center (IPAC), California Institute of Technology, Pasadena, CA, USA., Lagage PO; Université Paris-Saclay, Université Paris Cité, CEA, CNRS, AIM, Gif-sur-Yvette, France., Lendl M; Département d'Astronomie, Université de Genève Sauverny, Versoix, Switzerland., Mancini L; Max Planck Institute for Astronomy, Heidelberg, Germany.; Department of Physics, University of Rome 'Tor Vergata', Rome, Italy.; INAF - Turin Astrophysical Observatory, Pino Torinese, Italy., Mansfield M; Steward Observatory, University of Arizona, Tucson, AZ, USA., May EM; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA., Mayne NJ; Department of Physics and Astronomy, Faculty of Environment, Science and Economy, University of Exeter, Exeter, UK., Nikolov NK; Space Telescope Science Institute, Baltimore, MD, USA., Palle E; Instituto de Astrofísica de Canarias (IAC), Tenerife, Spain., Petit Dit de la Roche DJM; Département d'Astronomie, Université de Genève Sauverny, Versoix, Switzerland., Piaulet C; Department of Physics, Université de Montréal, Montreal, Quebec, Canada.; Institute for Research on Exoplanets, Université de Montréal, Montreal, Quebec, Canada., Powell D; Center for Astrophysics | Harvard & Smithsonian, Cambridge, MA, USA., Redfield S; Astronomy Department, Wesleyan University, Middletown, CT, USA.; Van Vleck Observatory, Wesleyan University, Middletown, CT, USA., Rogers LK; Institute of Astronomy, University of Cambridge, Cambridge, UK., Roman MT; School of Physics and Astronomy, University of Leicester, Leicester, UK.; Universidad Adolfo Ibáñez, Campus Peñalolén, Santiago, Chile., Roy PA; Department of Physics, Université de Montréal, Montreal, Quebec, Canada., Nixon MC; Department of Astronomy, University of Maryland, College Park, MD, USA.; Institute of Astronomy, University of Cambridge, Cambridge, UK., Schlawin E; Steward Observatory, University of Arizona, Tucson, AZ, USA., Tan X; Atmospheric, Oceanic and Planetary Physics, Department of Physics, University of Oxford, Oxford, UK., Tremblin P; Maison de la Simulation, CEA, CNRS, Université Paris-Sud, Université Versailles St Quentin, Université Paris-Saclay, Gif-sur-Yvette, France., Turner JD; Department of Astronomy, Cornell University, Ithaca, NY, USA.; Carl Sagan Institute, Cornell University, Ithaca, NY, USA., Venot O; Université de Paris Cité and Université Paris-Est Creteil, CNRS, LISA, Paris, France., Waalkes WC; Astrophysics & Planetary Sciences, University of Colorado Boulder, Boulder, CO, USA., Wheatley PJ; Centre for Exoplanets and Habitability, University of Warwick, Coventry, UK.; Department of Physics, University of Warwick, Coventry, UK., Zhang X; Department of Earth and Planetary Sciences, University of California, Santa Cruz, Santa Cruz, CA, USA.
Jazyk: angličtina
Zdroj: Nature [Nature] 2023 Feb; Vol. 614 (7949), pp. 670-675. Date of Electronic Publication: 2023 Jan 09.
DOI: 10.1038/s41586-022-05674-1
Abstrakt: The Saturn-mass exoplanet WASP-39b has been the subject of extensive efforts to determine its atmospheric properties using transmission spectroscopy 1-4 . However, these efforts have been hampered by modelling degeneracies between composition and cloud properties that are caused by limited data quality 5-9 . 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.
(© 2023. The Author(s).)
Databáze: MEDLINE
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