SIGMA observations of bright X-ray binaries

Details SIGMA observations of bright X-ray binaries SIGMA observations of bright X-ray binaries

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26as...97..225l&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 97, no. 1, p. 225-227.

Astronomy and Astrophysics

Astronomy

2

Black Holes (Astronomy), Pulsars, X Ray Stars, X Ray Telescopes, Galactic Nuclei, Light Curve, Stellar Mass Accretion, Stellar Spectra, Stellar Winds

Scientific paper

After more than two years of operation, the coded aperture SIGMA telescope has accumulated several days of observation toward well known X-ray binaries. Four persistent bright sources 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. The spectral properties of these systems in the SIGMA domain will be compared.

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