Abstract After more than two years of operation, the imaging γ-ray SIGMA telescope has accumulated several days of observation toward well known X-ray binaries. Four bright sources falling in this category have been detected so far: The pulsar GX 1+4 near the center of our galaxy, the stellar wind accreting system 4U 1700-377, and the black hole candidates Cygnus X-1 and GX 339-4. Moreover, SIGMA have observed three transients sources, which turned out to be also hard X-ray sources : The burster KS 1731-260, Tra X-1, and the Musca Nova. The properties of these systems in the SIGMA domain will be reviewed and a spectral distinction between black holes and neutron stars will be sketched.
SIGMA observations of hard X-ray and soft gamma-ray emission from X-ray binaries
Advances in Space Research ; 13 , 12 ; 139-148
1993-01-01
10 pages
Article (Journal)
Electronic Resource
English
SIGMA Observations of Hard X-Ray and Soft Gamma-Ray Emission from X-Ray Binaries
Online Contents | 1993
|SIGMA Observations of Hard X-Ray and Soft Gamma-Ray Emission from X-Ray Binaries
British Library Conference Proceedings | 1993
|SIGMA Observations of the Soft Gamma-Ray Source GRS 1758-258
Online Contents | 1993
|SIGMA observations of the soft Gamma-Ray Source GRS 1758-258
Elsevier | 1993
|SIGMA Observations of the Soft Gamma-Ray Source GRS 1758-258
British Library Conference Proceedings | 1993
|