Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-23T19:33:51.696Z Has data issue: false hasContentIssue false
  • English
  • Français

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

Published online by Cambridge University Press:  26 May 2016

Barry McKernan  and
Tahir Yaqoob
Barry McKernan
Affiliation:
Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA
Tahir Yaqoob
Affiliation:
Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA NASA/GSFC, Code 662, Greenbelt Rd., Greenbelt, MD 20771, USA

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We present soft X-ray results from observations with 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 of 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.

Type
Part 8 Active Galaxies and their Nuclei
Information
Symposium - International Astronomical Union , Volume 214: High Energy Processes and Phenomena in Astrophysics , 2003 , pp. 259 - 264
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

Collinge, M. J. et al., 2001, ApJ, 557, 2 CrossRefGoogle Scholar
Gabel, J. R. et al., 2002, ApJ, accepted (astro-ph/0209484) Google Scholar
Kaastra, J. S. et al., 2002, A&A, 386, 427 Google Scholar
Kaspi, S. et al., 2002, ApJ, 574, 643 CrossRefGoogle Scholar
Kraemer, S. B., Crenshaw, D. M., Yaqoob, T., McKernan, B., Gabel, J. R., George, I. M., & Turner, T. J. 2003, ApJ, 582, in press (astro-ph/028478) CrossRefGoogle Scholar
Lee, J. C. et al., 2001, ApJ, 554, L13 CrossRefGoogle Scholar
McKernan, B., Yaqoob, T., George, I. M., & Turner, T. J. 2003, ApJ, in preparation.Google Scholar
Yaqoob, T., George, I. M., & Turner, T. J. 2001, in ASP Conf. Ser. Vol. 262, High Energy Universe at Sharp Focus: Chandra Science, ed. Schlegel, E., & Vrtilek, S. (San Francisco: ASP), 203 (astro-ph/0111428) Google Scholar
Yaqoob, T., McKernan, B., Kraemer, S. B., Crenshaw, D. M., Gabel, J. R., George, I. M., & Turner, T. J. 2003, ApJ, 582, in press (astro-ph/0208530) CrossRefGoogle Scholar