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Origin of Thermal and Non-Thermal Hard X-ray Emission from the Galactic Center

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 نشر من قبل Vladimir Dogiel
 تاريخ النشر 2009
  مجال البحث فيزياء
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We analyse new results of Chandra and Suzaku which found a flux of hard X-ray emission from the compact region around Sgr A$^ast$ (r ~ 100 pc). We suppose that this emission is generated by accretion processes onto the central supermassive blackhole when an unbounded part of captured stars obtains an additional momentum. As a result a flux of subrelativistic protons is generated near the Galactic center which heats the background plasma up to temperatures about 6-10 keV and produces by inverse bremsstrahlung a flux of non-thermal X-ray emission in the energy range above 10 keV.



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