GRB 080913 was a
gamma-ray burst
In gamma-ray astronomy, gamma-ray bursts (GRBs) are immensely energetic explosions that have been observed in distant galaxies. They are the most energetic and luminous electromagnetic events since the Big Bang. Bursts can last from ten milli ...
(GRB) observed on September 13, 2008. The
Swift Gamma-Ray Burst satellite made the detection, with follow-up and additional observations from ground-based observatories and instruments, including the
Gamma-Ray Burst Optical/Near-Infrared Detector (GROND) and the
Very Large Telescope
The Very Large Telescope (VLT) is a telescope facility operated by the European Southern Observatory on Cerro Paranal in the Atacama Desert of northern Chile. It consists of four individual telescopes, each with a primary mirror 8.2 m across, ...
. At 12.8 billion
light-year
A light-year, alternatively spelled light year, is a large unit of length used to express astronomical distances and is equivalent to about 9.46 trillion kilometers (), or 5.88 trillion miles ().One trillion here is taken to be 1012 ...
s and
redshift
In physics, a redshift is an increase in the wavelength, and corresponding decrease in the frequency and photon energy, of electromagnetic radiation (such as light). The opposite change, a decrease in wavelength and simultaneous increase in f ...
of 6.7, the burst was the most distant GRB observed until
GRB 090423
GRB 090423 was a gamma-ray burst (GRB) detected by the Swift Gamma-Ray Burst Mission on April 23, 2009 at 07:55:19 UTC whose afterglow was detected in the infrared and enabled astronomers to determine that its redshift is ''z'' = 8.2, ...
on April 23, 2009. This
stellar explosion Stellar explosion can refer to:
* Nova
* Kilonova
* Micronova
* Supernova
** Type Ia supernova
** Type Ib and Ic supernovae
** Type II supernova
** Superluminous supernova
** Pair-instability supernova
* Hypernova
* Supernova impostor, stellar ...
occurred around 825 million years after the
Big Bang
The Big Bang event is a physical theory that describes how the universe expanded from an initial state of high density and temperature. Various cosmological models of the Big Bang explain the evolution of the observable universe from the ...
.
References
External links
IAUC
{{DEFAULTSORT:Grb 080913
Eridanus (constellation)
080913
20080913
September 2008 events