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Using the X-ray Emission Lines of Seyfert 2 AGN to Measure Abundance Ratios

Mario A. Jimenez-Garate·Toan Khu
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Abstract

We measure the metal abundance ratios in the X-ray photoionized gas located near the narrow line region of a sample of Seyfert 2 AGN. The high-resolution X-ray spectra observed with the Chandra high- and low-energy transmission grating spectrometers are compared with models of the resonant scattering and recombination emission from a plasma in thermal balance, and with multiple temperature zones. The abundance ratios in the sample are close to the Solar values, with slight over-abundances of N in NGC 1068, and of Ne in NGC 4151. Our X-ray spectral models use fewer degrees of freedom than previous works.

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Mario A. Jimenez-Garate, Toan Khu. 2004-03-26. Using the X-ray Emission Lines of Seyfert 2 AGN to Measure Abundance Ratios. https://doi.org/10.1142/9789812702432_0047

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