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   PR # 21132
    IRAS 13224-3809 is one of the non-blazar AGNs,which shows the fastest
    (~800sec) X-ray intensity variation. This object also have the soft  
    X-ray excess component and 100ksec observation will give us the      
    relation of variations between soft X-ray component and hard X-ray   
    one. This information will give us the clues to investigate the      
    emission mechanism of X-ray radiation of AGNs.                       
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