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   PR # 21061
    The SgrB region is found to emit extremely strong iron lines (2-3 keV
    equivalent width ) mainly at the energy of 6.4 keV . We interpret    
    two possible origin: young SNR in non equilibrium ionization and     
    highly overabundance of iron, or photo-ionized plasma by a hidden    
    point source. In order to make clear for these possible scenario, we 
    propose a deep pointing observation near Sgr B.                      
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