Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe.340g&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 SIGMA telescope observed the Galactic Centre for ~9 times 10^6 seconds from 1990 to 1997. During this survey SIGMA detected several hard X-ray sources in this field, all of them being X-ray binaries with a neutron star or a black hole as the accreting object. This database is a fundamental tool to analyze the hard X-ray properties of these sources both individually and as a class. We report on the first hard X-ray detection of the "twin" burster SLX1744-299/300 on the total sum of SIGMA observations and during a flare in 1992. The implications of this detection in the context of hard X-ray emission from X-ray bursters and in general from point sources in the Galaxy are briefly discussed.
Goldoni Paolo
SIGMA Collaboration
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