Astronomy and Astrophysics – Astrophysics
Scientific paper
2000-07-10
Astronomy and Astrophysics
Astrophysics
4 pages, 3 figures, Proceedings of "X-ray Astronomy '999 - Stellar Endpoints, AGN and the Diffuse Background", held in Bologna
Scientific paper
10.1063/1.1434777
The BeppoSAX satellite performed a survey of the Galactic Center Region in the 1-10 keV energy band with its Narrow Field Instruments. Several bright X-ray sources containing neutron stars and black holes have been observed and studied, including the possible counterpart of SgrA*. Here we report the results on the diffuse emission coming from the SgrA Complex. The emission from within 8 arcmin from SgrA* has a double-temperature thermal spectrum (kT1~0.6 keV and kT2~8 keV) and an energy-dependent morphology: the hard emission (5-10 keV) is elongated along the galactic plane, while the soft one (2-5 keV) shows a triangular shape, very similar to the radio halo of SgrAEast. This spatial correlation and the physical parameters of the lower temperature component support the interpretation of the radio halo of the Sgr~A~East shell as a SNR.
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Chiappetti Lucio
Israel Gian Luca
Mereghetti Sandro
Orlandini Mauro
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