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References in periodicals archive ?
(5) Super-Kamiokande:A facility consisting of a subterranean pool used as a Cherenkov-ray collector located in Kamioka, Gifu Prefecture, Japan.6 Sun's cosmic-ray shadow:A phenomenon in which cosmic rays (high-energy charged particles that move through space) are deflected by the sun's magnetic field.7 Ground-based gamma ray observatory, CTA:A future ground-based gamma-ray observatory planned to come online in 2020 with 10 times the sensitivity of existing gamma-ray telescopes.
Following the launch of NASA's Compton Gamma Ray Observatory (CGRO) satellite in 1991, when astronomers looked at the data it had collected, they saw a random distribution of bursts on the sky.
"Since the demise of the Compton Gamma Ray Observatory a decade ago, we've wondered about the nature of unidentified gamma-ray sources it detected in our galaxy.
In 1991 NASA had just deployed the second of its four Great Observatories, the Compton Gamma Ray Observatory (CGRO).
Diehl and other researchers had previously constructed maps of the galaxy's aluminum-26 by using less-sensitive instruments, such as a detector on the now-defunct Compton Gamma Ray Observatory (SN: 1/25/,92, p.
NASA's Compton Gamma Ray Observatory (CGRO) first discovered TGFs in the 1990s.
It's a follow-on to the Compton Gamma Ray Observatory's BATSE telescope, which discovered the uniform distribution of gamma-ray bursts (GRBs) throughout the sky and set the stage for the understanding of their extragalactic nature.
Scharf and Reshmi Mutcherjee of Columbia University compared known positions of 2,469 galaxy clusters with data collected for 9 years by NASXs Compton Gamma Ray Observatory. Gamma rays are concentrated in regions surrounding the most massive clusters, the scientists report in an upcoming Astrophysical Journal.
NASA's Compton Gamma Ray Observatory in 1991 raised the tally to more than 400, and its new Gamma-ray Large Area Space Telescope (GLAST) mission, planned for the end of 2007, is expected to find 10,000.
Telescopes such as the Compton Gamma Ray Observatory, which orbited Earth from 1991 to 2000, have detected thousands of bursts.
NASA's other three Great Observatories are Hubble, the Compton Gamma Ray Observatory (brought down in 2000), and the Chandra X-ray Observatory.
Norris' team homed in on the 70 gamma-ray bursts with the longest time lags--2 seconds or more--recorded by NASA's Compton Gamma Ray Observatory. According to the proposed relation, the 70 bursts should be intrinsically dim.