Review of 3 years of observations with the low-energy gamma-ray telescope SIGMA onboard GRANAT

Details Review of 3 years of observations with the low-energy gamma-ray telescope SIGMA onboard GRANAT Review of 3 years of observations with the low-energy gamma-ray telescope SIGMA onboard GRANAT

Jun 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apjs...92..343m&link_type=abstract

The Astrophysical Journal Supplement Series, vol. 92, no. 2, p. 343-349

Astronomy and Astrophysics

Astronomy

15

Active Galactic Nuclei, Gamma Ray Astronomy, Spaceborne Astronomy, X Ray Sources, Angular Resolution, Energy Spectra, Gamma Ray Telescopes, Novae, X Ray Binaries

Scientific paper

The French hard X-ray, soft gamma-ray telescope SIGMA, one of the main instruments onboard the Soviet satellite Granat, has performed sky observations in the 35 keV-1.3 MeV range during the last 3 years, with unprecedented angular resolution (a few arcminutes) in this energy range. New results have been obtained by imaging the Galactic center region with a 1.5 min accuracy during more than 800 hr distributed in six periods which took place in early spring and autumn, from 1990 to 1992. The 6 x 6 deg region centered on the Galactic center contains more than six highly variable sources in the 100 keV domain. Galactic sources, mainly associated with hard X-ray binaries, as well as bright extragalactic objects have been analyzed and monitored during 1990-1992. The main result obtained by SIGMA was demonstrating the variability of the sky in the hard X-ray domain and pointing out the outstanding consequences of the angular resolution on the understanding of high-energy emission sites.

Affiliated with

Also associated with

No associations

Rating

Review of 3 years of observations with the low-energy gamma-ray telescope SIGMA onboard GRANAT does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Review of 3 years of observations with the low-energy gamma-ray telescope SIGMA onboard GRANAT, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Review of 3 years of observations with the low-energy gamma-ray telescope SIGMA onboard GRANAT will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1863046