4 papers
On Synthetic Absorption Line Profiles of Thermally Driven Winds from Active Galactic Nuclei
Shalini Ganguly, Daniel Proga, Tim Waters +7
The warm absorbers observed in more than half of all nearby active galactic nuclei (AGN) are tracers of ionized outflows located at parsec scale distances from the central engine.…
Multiphase AGN winds from X-ray irradiated disk atmospheres
Tim Waters, Daniel Proga, Randall Dannen
The mechanism of thermal driving for launching mass outflows is interconnected with classical thermal instability (TI). In a recent paper, we demonstrated that as a result of this…
Clumpy AGN outflows due to thermal instability
Randall Dannen, Daniel Proga, Tim Waters +1
One of the main mechanisms that could drive mass outflows on parsec scales in AGN is thermal driving. The same X-rays that ionize and heat the plasma are also expected to make it t…
Photoionization calculations of the radiation force due to spectral lines in AGNs
Randall C. Dannen, Daniel Proga, Timothy R. Kallman +1
One of the main mechanisms that could drive mass outflows in AGNs is radiation pressure due to spectral lines. Although straightforward to understand, the actual magnitude of the r…