Quasar Absorbtion Studies (IMAGE)

University of Copenhagen - Niels Bohr Institute

Quasar Absorbtion Studies

Caption

Quasars are among the brightest objects in the universe and can be used as lighthouses to study the universe between the quasars and Earth. Here researchers have discovered a galaxy that lies in front of a quasar and by studying the absorption lines in the light from the quasar, they have measured the elemental composition in the galaxy in great detail, despite the fact that we are looking approx. 11 billion years back in time.

Credit

Graphic: Chano Birkelind, Niels Bohr Institute

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Graphic: Chano Birkelind, Niels Bohr Institute

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