Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999head....4.3502v&link_type=abstract
American Astronomical Society, HEAD meeting #4, #35.02; Bulletin of the American Astronomical Society, Vol. 31, p.737
Astronomy and Astrophysics
Astronomy
Scientific paper
We present the first simultaneous RXTE/OSSE measurements of the diffuse X-ray and gamma -ray emission from the Galactic ridge near the Scutum arm region. The contribution of discrete hard X-ray sources detected by RXTE has been determined and subtracted from the hard X-ray/soft gamma -ray spectrum obtained by OSSE. As a result the least contaminated spectrum of the diffuse emission from 10 keV to 200 keV has been obtained. We discuss the origin of the diffuse emission in terms of discrete sources, thermal bremsstrahlung from hot plasma, inverse Compton scattering, and non-thermal electron bremsstrahlung.
Kinzer Robert L.
Marshall Francis E.
Valinia Azita
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