Wind-type outflows in Seyfert 1 active nuclei

Details Wind-type outflows in Seyfert 1 active nuclei Wind-type outflows in Seyfert 1 active nuclei

Nov 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26a...363..455p&link_type=abstract

Astronomy and Astrophysics, v.363, p.455-475 (2000)

Astronomy and Astrophysics

Astrophysics

7

Hydrodynamics, Plasmas, Radiation Mechanisms: Thermal, Galaxies: Active, Galaxies: Seyfert

Scientific paper

A sub-relativistic, thermal wind-type flow could represent the physical connection between the central engine and other observed components of the central region, such as the Broad Line Region (BLR) and X-ray/UV absorbers. Observational clues as to the existence of such outflows in radio-quiet Active Galactic Nuclei (AGNs) are provided, for instance, by blue shifted absorption lines in Seyferts and Broad Absorption Line Quasi Stellar Objects (BAL QSOs). We study a model for wind-type flows in Seyfert 1s and explore the physical conditions of the outflowing gas, taking into account explicitly both heating and cooling processes, including Compton interaction with radiation. A distributed heating source along the wind way turns out to be necessary for this nuclear wind existence and restrictions on physical parameters to obtain a reasonable wind model in the AGN context are identified; we also allow for externally originated mass loading of the wind.

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