Gamma-Ray Observatory - The next great observatory in space

Details Gamma-Ray Observatory - The next great observatory in space Gamma-Ray Observatory - The next great observatory in space

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990mercu..19...98n&link_type=abstract

Mercury (ISSN 0047-6773), vol. 19, July-Aug. 1990, p. 98-111.

Physics

Gamma Ray Bursts, Gamma Ray Observatory, Gamma Ray Spectrometers, Imaging Techniques, Energetic Particles, Giant Stars, Interstellar Matter, Nasa Space Programs, Nuclear Reactions, Particle Acceleration, Photons

Scientific paper

The Gamma-Ray Observatory (GRO) which is part of NASA's Great Observatories space program is presented. The GRO is equipped with the Burst and Transient Source Experiment (which detects low-energy gamma-ray photons from 20 keV to 600 keV and locates sources of gamma-ray bursts), the Oriented Scintillation Spectrometer Experiment (which detects celestial gamma rays from 100 keV to 10 MeV and identifies the elements producing these rays by measuring the ray's spectra and time variability), the Imaging Compton Telescope (which images gamma rays with energies from 1 to 30 MeV created when cosmic rays interact with interstellar matter), and the Energetic Gamma-Ray Experiment Telescope (which detects high-energy photons associated with the most energetic processes occurring in nature). After the energies of photons from each source are classified, the gamma-ray mechanisms can be modelled. Nuclei, radioactive isotopes, and nuclear reactions can be identified, and the physical conditions at the radiation's source can also be modelled. From these models, theories can be developed about the creation of elements in the explosion and collapse of giant stars, the acceleration of charged particles to velocities approaching the speed of light, and the destruction of matter and antimatter.

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