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Mass outflow constraints in active nuclei and quasars from X-ray spectroscopy

Published online by Cambridge University Press:  01 July 2007

Tahir Yaqoob
Tahir Yaqoob*
Affiliation:
Department of Physics and Astronomy, Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA
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Abstract

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Absorption in the X-ray spectra of active galactic nuclei from outflowing gas can be modeled to yield critical physical information on the outflows. The outflow rate of mass ejected back into the ISM of the host galaxy and the resulting feedback could potentially have an impact on evolution. We give a brief overview of the current observational constraints on the outflows that should be taken into account by models of evolution and feedback.

Keywords

galaxies: active – ISM: jets and outflows – X-rays: galaxies
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S245: Formation and Evolution of Galaxy Bulges , July 2007 , pp. 263 - 268
Copyright
Copyright © International Astronomical Union 2008

References

Blustin, A., et al. 2005, A&A, 431, 111Google Scholar
McKernan, B., Yaqoob, T. & Reynolds, C. S. 2007, MNRAS, 379, 1359CrossRefGoogle Scholar
Reeves, J. N., O'Brien, P. T. & Ward, M. J. 2003 ApJ, 593, L65CrossRefGoogle Scholar