Artist’s impression of a gamma-ray burst shining through two young galaxies in the early Universe

This artist’s impression shows two galaxies in the early Universe. The brilliant explosion on the left is a gamma-ray burst. As the light from the burst passes through the two galaxies  on the way to Earth (outside the frame to the right) some colours are absorbed by the cool gas in the galaxies, leaving characteristic dark lines in the spectrum. Careful study of these spectra has allowed astronomers to discover that these two galaxies are remarkably rich in heavier chemical elements.

Kredit:

ESO/L. Calçada

O snímku

Id:eso1143b
Typ:Kresba
Datum zveřejnění:2. listopadu 2011 12:00
Související články:eso1143
Velikost:3258 x 2443 px

O objektu

Jméno:GRB 090323, Spectrum
Typ:Early Universe : Cosmology : Phenomenon : Gamma Ray Burst
Vzdálenost:z=3.57 (rudý posuv)
Kategorie:Cosmology
Illustrations

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