GRB 970508
GRB 970508 was a gamma-ray burst detected on May 8, 1997, at 21: 42 UTC. It is historically important as the second GRB with a detected afterglow at other wavelengths, and the first to be detected at radio wavelengths. The source of the radio waves had expanded almost at the speed of light.
About GRB 970508 in brief
GRB 970508 was a gamma-ray burst detected on May 8, 1997, at 21: 42 UTC. It is historically important as the second GRB with a detected afterglow at other wavelengths, and the first to be detected at radio wavelengths. It was also the first burst with an observed radio frequency after glow. The source of the radio waves had expanded almost at the speed of light. This provided strong evidence that GRBs are relativistically expanding explosions. GRB was detected by the Gamma Ray Burst Monitor on the Italian–Dutch X-ray astronomy satellite BeppoSAX. The burst was also detected by Ulysses, a robotic space probe designed to study the Sun, and by the Burst and Transient Source Experiment on board the Compton Gamma Ray Observatory. It occurred at least 6 billion light years from Earth; this was the first measurement of the distance to a Gamma-Ray burst. GRBs were first detected in 1967 by the Vela satellites. The initial burst is often followed by a longer-lived \”afterglow\” emitted at longer wavelengths.
The first GRB afterglOW to be discovered was the X-rays of GRB 970228, which was detected by Beppo SAX, an Italian-Dutch satellite originally designed toStudy X- rays. The discovery of the optical burst was later confirmed by Howard Bond of the Bond Space Telescope, which later confirmed the burst to be an optical GRB. It also led to the discovery of a variable star in this smaller error box, which had been assumed to be a star before the discovery. The object was later found to be in fact an optical variable star, and it was later discovered to be the first object to be found in this area of space after the GRB’s X-glow was also found to have a redshift of 1.2. The GRB is a highly luminous flash associated with an explosion in a distant galaxy and producing gamma rays, the most energetic form of electromagnetic radiation. It occurred in the early hours of May 8th, 1997.
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This page is based on the article GRB 970508 published in Wikipedia (as of Dec. 06, 2020) and was automatically summarized using artificial intelligence.
