BATSE instrument on the orbiting NASA Great Observatory Compton detected unusually bright flashes of gamma-rays from a point deep in the southern sky. This gamma-ray burst was also recorded by the orbiting Beppo-SAX satellite, which downlinked an accurate position followed by the world's largest optical telescopes. The subsequent fading optical transient, pictured above, is so far out in the universe its light is measured to be redshifted by factor of at least 1.6. The type of powerful explosion that caused this gamma-ray burst is not only still unknown, but found to be fading in an unusual way.
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& Michigan Tech. U.
Based on Astronomy Picture Of the Day
Publications with keywords: gamma-ray burst - unusual - optical transient - gamma ray
Publications with words: gamma-ray burst - unusual - optical transient - gamma ray