NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-20 T05:31:32 PDT
Help | Comment | NED Home

For refcode 2005A&A...431..111B:
Retrieve 23 NED objects in this reference.
Please click here for ADS abstract

NED Abstract

Copyright by European Southern Observatory (ESO). Reproduced by permission
2005A&A...431..111B The nature and origin of Seyfert warm absorbers A. J. Blustin, M. J. Page, S. V. Fuerst, G. Branduardi-Raymont and C. E. Ashton Received 2 August 2004 / Accepted 18 October 2004 We collate the results of recent high resolution X-ray spectroscopic observations of 23 AGN, and use the resulting information to try to provide answers to some of the main open questions about warm absorbers: where do they originate, what effect do they have on their host galaxies, and what is their importance within the energetics and dynamics of the AGN system as a whole? We find that the warm absorbers of nearby Seyferts and certain QSOs are most likely to originate in outflows from the dusty torus, and that the kinetic luminosity of these outflows accounts for well under 1% of the bolometric luminosities of the AGN. Our analysis supports, however, the view that the relativistic outflows recently observed in two PG quasars have their origin in accretion disc winds, although the energetic importance of these outflows is similar to that of the Seyfert warm absorbers. We find that the observed soft X-ray absorbing ionisation phases fill less than 10% of the available volume. Finally, we show that the amount of matter processed through an AGN outflow system, over the lifetime of the AGN, is probably large enough to have a significant influence on the evolution of the host galaxy and of the AGN itself. Keywords: Galaxies: active, X-rays: galaxies, galaxies: general, galaxies: Seyfert, quasars: absorption lines, techniques: spectroscopic
Retrieve 23 NED objects in this reference.
Please click here for ADS abstract

Back to NED Home