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High Energy Astrophysics Department at IKI RAN
SIGMA telescope

SIGMA is the coded-mask telescope capable to get images and spectra in the 30-1000 keV energy range with ~10' angluar resolutiuon and the field of view (fully coded) of 4.3X4.7 degrees. SIGMA assembly to GRANAT satellite is shown here



Scientific results

The main results from SIGMA include the VERY deep (more than 5 million seconds) imaging of the galactic center region, discovery of the electron-positron annihilation lines from the Galactic "micro-quasar" 1E1740-294, and X-ray Nova Muscae, study of spectra and time variability of the balck-hole candidates.

Links
  • The Sigma telescope - A decisive step in high energy astronomy // L'Aeronautique et l'Astronautique (1990) NASA ADS
  • The SIGMA telescope on the CESR.
  • Section on Wikipedia dedicated to GRANATwiki mission