File:Composition of cloud particles - hot gas giant exoplanet WASP-17b (WASP17b).tiff
From Wikimedia Commons, the free media repository
Jump to navigation
Jump to search
Size of this JPG preview of this TIF file: 800 × 511 pixels. Other resolutions: 320 × 205 pixels | 640 × 409 pixels | 1,024 × 655 pixels | 1,280 × 818 pixels | 2,560 × 1,637 pixels | 3,840 × 2,455 pixels.
Original file (3,840 × 2,455 pixels, file size: 7.23 MB, MIME type: image/tiff)
File information
Structured data
Captions
Summary
[edit]DescriptionComposition of cloud particles - hot gas giant exoplanet WASP-17b (WASP17b).tiff |
English: This is a transmission spectrum of the hot gas giant exoplanet WASP-17 b captured by Webb’s Mid-Infrared Instrument (MIRI) on 12-13 March 2023. It reveals the first evidence for quartz (crystalline silica, SiO2) in the clouds of an exoplanet.This marks the first time that SiO2 has been identified in an exoplanet, and the first time any specific cloud species has been identified in a transiting exoplanet.The spectrum was made by measuring the change in brightness of 28 wavelength-bands of mid-infrared light as the planet transited the star. Webb observed the WASP-17 system using MIRI’s low-resolution spectrograph for nearly 10 hours, collecting more than 1,275 measurements before, during, and after the transit.For each wavelength, the amount of light blocked by the planet’s atmosphere (white circles) was calculated by subtracting the amount that made it through the atmosphere from the amount originally emitted by the star.The solid purple line is a best-fit model to the Webb (MIRI), Hubble, and Spitzer data (the Hubble and Spitzer data cover wavelengths from 0.34 to 4.5 microns and are not shown on the graph). The spectrum shows a clear feature around 8.6 microns, which astronomers think is caused by silica particles absorbing some of the starlight passing through the atmosphere.The dashed yellow line shows what that part of the transmission spectrum would look like if the clouds in WASP-17 b’s atmosphere did not contain SiO2. |
Date | 16 October 2023 (upload date) |
Source | Composition of cloud particles - hot gas giant exoplanet WASP-17b |
Author | NASA, ESA, CSA, R. Crawford (STScI), D. Grant (University of Bristol), H. R. Wakeford (University of Bristol), N. Lewis (Cornell University) |
Other versions |
|
Licensing
[edit]ESA/Webb images, videos and web texts are released by the ESA under the Creative Commons Attribution 4.0 International license and may on a non-exclusive basis be reproduced without fee provided they are clearly and visibly credited. Detailed conditions are below; see the ESA copyright statement for full information. For images created by NASA or on the webbtelescope.org website, use the {{PD-Webb}} tag.
Conditions:
Notes:
|
This file is licensed under the Creative Commons Attribution 4.0 International license.
Attribution: NASA, ESA, CSA, R. Crawford (STScI), D. Grant (University of Bristol), H. R. Wakeford (University of Bristol), N. Lewis (Cornell University)
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 10:00, 17 October 2023 | 3,840 × 2,455 (7.23 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://esawebb.org/media/archives/images/original/WASP17b.tif via Commons:Spacemedia |
You cannot overwrite this file.
File usage on Commons
The following 2 pages use this file:
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Width | 3,840 px |
---|---|
Height | 2,455 px |
Bits per component |
|
Compression scheme | LZW |
Pixel composition | RGB |
Image data location | 8 |
Number of components | 3 |
Number of rows per strip | 2,455 |
Bytes per compressed strip | 7,575,394 |
Horizontal resolution | 71.984 dpi |
Vertical resolution | 71.984 dpi |
Data arrangement | chunky format |