AbstractElectron–positron annihilation radiation from the Galactic Center Region has been detected since the seventies, but its astrophysical origin is still a topic of a scientific debate. We have analyzed data of the gamma-ray imager IBIS/ISGRI onboard of ESA’s INTEGRAL platform in the e−e+ line. During the first year of the missions Galactic Center Deep Exposure no evidence for point sources at 511 keV has been found in the ISGRI data; the 2σ upper limit for resolved single point sources is estimated to be 1.6×10−4 phcm−2s−1.
INTEGRAL/IBIS search for e−e+ annihilation radiation from the galactic center region
Advances in Space Research ; 38 , 7 ; 1457-1460
2005-01-05
4 pages
Article (Journal)
Electronic Resource
English
INTEGRAL-IBIS search for e−e+ annihilation radiation from the galactic center region
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