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

Over de afbeelding

Id:eso0606a
Type:Ontwerp
Publicatiedatum:15 februari 2006
Gerelateerde berichten:eso0606
Grootte:2480 x 1458 px

Over het object

Naam:Quasar, Spectrum
Type:Unspecified : Galaxy : Activity : AGN : Quasar
Categorie:Galaxies
Illustrations

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