摘 要: | 1 RelativisicallyBroadenedFeKαLinesTheFeKαlineat~ 6.4keV ,whichisobservedinmanyActiveGalacticNuclei (AGN)aswellasingalacticblackholecandidates,ismainlyproducedbyfluorescence ,i.e.,ahardphoton produced ,e .g .,byComptonizationinanaccretiondiskcorona isabsorbedbytheK shellofanironatomintherelativelycoldmaterialinthethinaccretiondisk .NotethatinthecontextoftheX rayemissionfromSeyfertgalaxies ,“cold”meanstemperatureswheretheionizationstateofironisFexorless,i.e.,onlyoutershellelectrons…
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