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- W1567142321 abstract "Chandra and XMM observations are showing that the Fe-K emission lines in type 1 AGN are composite, in general consisting of a narrow and a broad component. We review the latest Chandra HETG results and compare the line profiles with those measured by ASCA. The narrow Fe-K line components necessitate re-modeling of the line profiles measured previously and revision of the parameters of the relativistic broad components, as well re-interpretation of variability studies. We also explicitly demonstrate the effect of changes in the ASCA calibration on the measurements of the Fe-K lines in AGN. We find that the differences in measured parameters are insignificant. Both the intrinsic width and EW change by less than 8%. Fe-K line studies which claim much larger differences do not adequately model the line emission. We point out that it is incorrect to compare different calibrations, and indeed make astrophysical inferences, using models which do not describe the data. We then present some new results for the highest S/N broad Fe-K line profile in the entire ASCA archive, from NGC 4151." @default.
- W1567142321 created "2016-06-24" @default.
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- W1567142321 date "2001-11-21" @default.
- W1567142321 modified "2023-09-25" @default.
- W1567142321 title "Subtleties in Measuring Iron K Lines in AGN" @default.
- W1567142321 hasPublicationYear "2001" @default.
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