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   51104
   In order to solve the mystery of the Galactic ridge emission, we
   proposa a 100 ks deep pointing onto the Fornax dwarf spheroidal galaxy.
   This object is of such a poor system that neither supernova remnants
   nor white dwarfs are expected to make detectable (quasi-) diffuse
   emission. Thus the system is free from two possible explanations of the
   ridge emission. Nevertheless, the magnetic coronal mechanism, another
   mechanism proposed for the ridge emission, may wrok and produce a
   detectable diffuse emission.
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