"Integral" - a challenging scientific mission.

Details "Integral" - a challenging scientific mission. "Integral" - a challenging scientific mission.

Aug 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994esabu..79....6c&link_type=abstract

ESA Bull., No. 79, p. 6 - 13

Astronomy and Astrophysics

Astronomy

1

Space Missions: Gamma-Ray Astronomy

Scientific paper

The spectroscopic study of atomic and molecular lines in the infrared, optical and ultraviolet regions of the electromagnetic spectrum has provided us with knowledge and understanding of the physics of normal stars. Spectral lines in the gamma-ray region are produced by new and different processes. These include radioactivity, nuclear excitation, electron-positron annihilation and radiation in the vicinity of magnetic fields. Gamma-ray lines are indicators of all these processes and have now been observed at astrophysical sites. The key features of the Integral satellite will allow to study in great detail these, and other sites of key interest in today's astrophysical research, with high sensitivity combined with very good energy resolution and very good imaging capabilities (in order to avoid source confusion) using two main instruments, an "Imager" and a "Spectrometer".

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