Everything about Grb 050904 totally explained
GRB 050904 is the most distant
gamma ray burst (GRB) ever observed.
The explosion 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 have a redshift of 6.96 and 6.43, respectively.
Three different groups of researchers, lead by Giancarlo Cusumano, Joshua Haislip, and Nobu Kawai respectively, carried out the investigation of the phenomenon and presented their results in
Nature magazine on
March 9,
2006.
Further Information
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