File:WASP-39 b Atmospheric Composition (NIRSpec PRISM) (weic2221f).jpeg
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[edit]DescriptionWASP-39 b Atmospheric Composition (NIRSpec PRISM) (weic2221f).jpeg |
English: The atmospheric composition of the hot gas giant exoplanet WASP-39 b has been revealed by the NASA/ESA/CSA James Webb Space Telescope.A transmission spectrum is made by comparing starlight filtered through a planet’s atmosphere as it moves in front of the star, to the unfiltered starlight detected when the planet is beside the star. Each of the data points (white circles) on these graphs represents the amount of a specific wavelength of light that is blocked by the planet and absorbed by its atmosphere. Wavelengths that are preferentially absorbed by the atmosphere appear as peaks in the transmission spectrum.The blue line is a best-fit model that takes into account the data, the known properties of WASP-39 b and its star (e.g., size, mass, temperature), and assumed characteristics of the atmosphere. Researchers can vary the parameters in the model – changing unknown characteristics like cloud height in the atmosphere and abundances of various gases – to get a better fit and further understand what the atmosphere is really like.This graph displays data from Webb's NIRSpec instrument, indicating signatures of potassium (K), water (H2O), carbon monoxide (CO), sulfur dioxide (SO2), carbon dioxide (CO2), and sodium (Na). |
Date | 22 November 2022 (upload date) |
Source | WASP-39 b Atmospheric Composition (NIRSpec PRISM) |
Author | NASA, ESA, CSA, J. Olmsted (STScI) |
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Source | ESA/Webb |
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Credit/Provider | NASA, ESA, CSA, J. Olmsted (STScI) |
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Date and time of data generation | 17:00, 22 November 2022 |
Software used | Adobe Photoshop 24.0 (Macintosh) |
File change date and time | 14:10, 17 November 2022 |
Date and time of digitizing | 08:19, 17 November 2022 |
Date metadata was last modified | 09:10, 17 November 2022 |
Unique ID of original document | uuid:65E6390686CF11DBA6E2D887CEACB407 |
Contact information |
ESA Office, Space Telescope Science Institute, 3700 San Martin Dr Baltimore, MD, 21218 United States |
IIM version | 4 |