Artist’s impression of a gamma-ray burst

Gamma-ray bursts (GRBs) are powerful flashes of energetic gamma-rays lasting from less than a second to several minutes. They release a tremendous amount of energy in this short time making them the most powerful events in the Universe. They are thought to be mostly associated with the explosion of stars that collapse into black holes. In the explosion, two jets of very fast-moving material are ejected, as depicted in this artist’s illustration. If a jet happens to be aimed at Earth, we see a brief but powerful gamma-ray burst.

Oikeudet:

ESO/A. Roquette

Kuvasta

Tunnistus:eso0917a
Tyyppi:Kuvitus
Julkaisupäivä:28. huhtikuuta 2009
Vastaavat julkaisut:eso0917
Koko:3500 x 2000 px

Kohteesta

Nimi:Gamma-ray burst
Tyyppi:Early Universe : Cosmology : Phenomenon : Gamma Ray Burst
Etäisyys:z=8.2 (punasiirtymä)
Kategoria:Cosmology
Illustrations

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