File:Quasar ULAS (gemini1107a).jpg

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Captions

Captions

Artist's conception of how the quasar would appear close up.

Summary

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Description
English: Artist's conception of how the quasar would appear close up. The very hot extremely luminous quasar at the center of the image is very bright at ultraviolet wavelengths, and light from the quasar ionizes the surrounding gas, producing the red color that is characteristic of ionized hydrogen. Faint compact galaxies that have just been born appear in the background. The galaxies' hot stars also ionize their surroundings, but only in the immediate vicinity as they are far less luminous than the quasar which can ionize over a much larger volume.
Date 29 June 2011 (upload date)
Source Quasar ULAS
Author International Gemini Observatory/AURA,/Lynette Cook
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current18:52, 23 October 2023Thumbnail for version as of 18:52, 23 October 20233,300 × 2,550 (545 KB)OptimusPrimeBot (talk | contribs)#Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/large/gemini1107a.jpg via Commons:Spacemedia

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