File:Cassiopeia A (NIRCam and MIRI side by side) (2023-149).png

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Original file ‎(30,819 × 17,286 pixels, file size: 243.53 MB, MIME type: image/png)

Captions

Captions

This image provides a side-by-side comparison of supernova remnant Cassiopeia A (Cas A) as captured by NASA’s James Webb Space Telescope’s NIRCam (Near-Infrared Camera) and MIRI (Mid-Infrared Instrument).

Summary

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Description
English: This image provides a side-by-side comparison of supernova remnant Cassiopeia A (Cas A) as captured by NASA’s James Webb Space Telescope’s NIRCam (Near-Infrared Camera) and MIRI (Mid-Infrared Instrument).

At first glance, Webb’s NIRCam image appears less colorful than the MIRI image overall, however, this is only due to the wavelengths in which the material from the object is emitting its light. The NIRCam image appears a bit sharper than the MIRI image due to its increased resolution. The outskirts of the main inner shell, which appeared as a deep orange and red in the MIRI image, looks like smoke from a campfire in the NIRCam image. This marks where the supernova blast wave is ramming into surrounding circumstellar material. The dust in the circumstellar material is too cool to be detected directly at near-infrared wavelengths, but lights up in the mid-infrared. Also not seen in the near-infrared view is the loop of green light in the central cavity of Cas A that glowed in mid-infrared, nicknamed the Green Monster by the research team. The circular holes visible in the MIRI image within the Green Monster, however, are faintly outlined in white and purple emission in the NIRCam image.

NASA, ESA, CSA, STScI, Danny Milisavljevic (Purdue University), Ilse De Looze (UGent), Tea Temim (Princeton University)
Date 10 December 2023 (upload date)
Source Cassiopeia A (NIRCam and MIRI side by side)
Author Image: NASA, ESA, CSA, STScI, Danny Milisavljevic (Purdue University), Ilse De Looze (UGent), Tea Temim (Princeton University)
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Licensing

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Public domain This file is in the public domain because it was created by NASA, ESA and CSA. NASA Webb material is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA/CSA is credited as the source of the material. This license does not apply if source material from other organizations is in use.
The material was created for NASA by Space Telescope Science Institute under Contract NAS5-03127. Copyright statement at webbtelescope.org. For material created by the European Space Agency on the esawebb.org site, use the {{ESA-Webb}} tag.

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current10:38, 11 December 2023Thumbnail for version as of 10:38, 11 December 202330,819 × 17,286 (243.53 MB)OptimusPrimeBot (talk | contribs)#Spacemedia - Upload of https://stsci-opo.org/STScI-01HGH0T1G4S6D57Z6ZPM0JT1GV.png via Commons:Spacemedia

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