Detecting Metals in Invisible Galaxies

A distant quasar is used as a beacon in the Universe. Galaxies and intergalactic material that lie between the quasar and us will reveal themselves by the features seen in the spectrum. Figure adapted from John Webb.

Credit:

John Webb

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About the Image

Id:eso0606a
Type:Artwork
Release date:15 February 2006
Related releases:eso0606
Size:2480 x 1458 px

About the Object

Name:Quasar, Spectrum
Type:• Unspecified : Galaxy : Activity : AGN : Quasar
• X - Galaxies
• X - Illustrations

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