Poster Presentation
AGN Feedback Efficiency with NAL Outflow Winds
Presenter: Toru Misawa (Shinshu Univ.)
AGN outflow winds contribute to the evolution of host galaxies, if the total kinetic energy is large enough to regulate star formation activity (i.e., AGN feedback), as seen in some quasars with broad absorption lines (BALs). Narrow absorption lines (NALs) with line widths less than 500 km/s may also contribute to AGN feedback due to their large outflow velocity and detection rate.
In this study, we use the column density ratio of the excited and the ground states of CII and SiII to constrain the typical electron density and radial distance of NAL absorbers, and finally evaluate mass outflow rate, kinetic luminosity, and the feedback efficiency.
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