Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe.209p&link_type=abstract
Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, held in Paris, France, Dec. 14-18, 1998. Eds.:
Astronomy and Astrophysics
Astrophysics
Scientific paper
The ESA scientific mission INTEGRAL, scheduled to be launched in April 2001, is dedicated to the fine spectroscopy and fine imaging of celestial gamma-ray sources. One of the two main Integral instruments, the Spectrometer SPI has been designed to perform spectral analysis of gamma-ray point sources and extended regions in the 20 keV to 8 MeV energy range with an energy resolution E/DeltaE ~500 at 1 MeV. Observations of gamma-ray lines from nuclear transitions in the decay of radionuclides produced in supernovae and novae (including historic events), with the purpose to provide the most direct way of validating current models of explosive nucleosynthesis processes, rank among the prime scientific objectives of the Integral mission, which will also grasp valuable nuclear astrophysics data on hydrostatic nucleosynthesis processes in massive stars and on the production of light elements by energetic particle interactions.
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