GRB 050904

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GRB 050904
Other designations GRB 050904
Event type Gamma-ray burst Edit this on Wikidata
Date 4 September 2005 Edit this on Wikidata
Instrument Swift Gamma-Ray Burst Mission Edit this on Wikidata
Constellation Pisces Edit this on Wikidata
Redshift 6.295±0.001 Edit this on Wikidata
See also

GRB 050904 is one of the most distant events ever observed, as of 2005. This gamma ray burst (GRB) occurred in the constellation Pisces. The bright γ-ray flash, lasting about 200 seconds, was detected on September 4, 2005 by the Swift Gamma-Ray Burst Mission. The GRB has a redshift of z=6.295. Such a high redshift means that the burst happened nearly 13 billion years ago. Therefore, the GRB exploded when the Universe was an infant (890 million years old according to the most recent estimates), about 6% of its current age. By comparison, the most distant galaxy and the most distant quasar ever observed, as of 2005, had a redshift of 6.96 and 6.43, respectively.

Three different groups of researchers, led by Giancarlo Cusumano, Joshua Haislip, and Nobuyuki Kawai respectively, carried out the investigation of the phenomenon and presented their results in Nature magazine on March 9, 2006.

See also[edit]

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Preceded by
GRB 000131
Most distant gamma-ray burst
2005 — 2008
Succeeded by
GRB 080913