Image: Cassiopeia A infrared echo (complete)
Description: Almost the complete infrared echo around the supernova remnant Cassiopeia A. Images are difference images of unWISE images and colored from red (Neo 1 ca. 2014) to blue (Neo 7 ca. 2020). Allwise (ca. 2010) appears black, because of the way unWISE is processed. A few regions in animated files: North South Center South: Allwise: black Neo 1: red Neo 2: orange Neo 3: yellow-green Neo 4: green Neo 5: cyan Neo 6: light-blue Neo 7: blue Paper unWISE Allwise: https://ui.adsabs.harvard.edu/abs/2014AJ....147..108L/abstract Paper unWISE NEOWISER 1: https://ui.adsabs.harvard.edu/abs/2017AJ....153...38M/abstract Paper unWISE NEOWISER 7: https://ui.adsabs.harvard.edu/abs/2022RNAAS...6...62M/abstract Image Credit: unWISE filter: W2
website unWISE: http://unwise.me/
Author: Meli thev
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC-BY-SA-3.0
License Link: http://creativecommons.org/licenses/by-sa/3.0/
Attribution Required?: Yes
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