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New Chandra/HST-STIS results on Seyfert I AGN: Photoionized Outflows

B. McKernan·T. Yaqoob
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Abstract

We present soft X-ray results from observations with the Chandra HETGS of the Seyfert I AGN NGC 4593 and Mrk 509. We discuss the photoionized outflows associated with Seyfert I AGN in terms of their absorption spectral signatures and discuss their kinematics, column density and ionization state. We discuss the link between UV and X-ray absorbers in Mrk 509 (which was simultaneously observed with Chandra and HST/STIS. We also briefly discuss the possibility of absorption due to neutral Fe embedded in the warm absorber of NGC 4593 versus an interpretation of the data in terms soft X-ray relativistic emission lines. We conclude with a summary of what is being learnt about warm absorbers in type I AGN from high resolution spectroscopy.

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B. McKernan, T. Yaqoob. 2002-11-17. New Chandra/HST-STIS results on Seyfert I AGN: Photoionized Outflows. https://arxiv.org/abs/astro-ph/0211384

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