GRB 050904
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| Event type | Gamma-ray burst |
|---|---|
| Constellation | Pisces |
| Redshift | 6.295 ±0.002 |
| Other designations | GRB 050904 |
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GRB 050904is one of the most distant events ever observed, as of 2005. Thisgamma ray burst(GRB) occurred in the constellationPisces. The bright γ-ray flash, lasting about 200 seconds, was detected on September 4, 2005 by theSwift Gamma-Ray Burst Mission. The GRB has aredshiftofz=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, themost distant galaxyand the most distantquasarever 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 inNaturemagazine on March 9, 2006.
See also
[edit]External links
[edit]- Most distant explosion detected, smashes previous record(SWIFT @ Goddard, NASA)
- Star Death Beacon at the Edge of the Universe(ESO Press Release)
- Most Distant Explosion Detected, Smashes Previous RecordArchived2017-05-31 at theWayback Machine(NASA)
- Swift NewsletterArchived2007-08-10 at theWayback Machine
- Scientists Piece Together the Most Distant Cosmic Explosion