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| Paper: |
Narrow Absorption Line Outflows in High-Redshift Quasars |
| Volume: |
460, AGN Winds in Charleston |
| Page: |
52 |
| Authors: |
Simon, L. E.; Hamann, F.; Pettini, M. |
| Abstract: |
We discuss results from a survey of narrow absorption lines (NALs) in
high-resolution spectra of 24
high-redshift quasars. We identify NALs that are intrinsic to quasar
environments based on partial covering of the background light source
and, secondarily, broad rounded line profiles. The intrinsic lines
tend to be stronger and broader, with larger CIV column densities,
compared to other NALs with intervening or ambiguous origins. The
large velocity shifts of many intrinsic lines, v > 2500 km s-1,
clearly indicate an origin in quasar outflows. We describe some
interesting individual
cases, including very large outflow velocities up to
∼39,300 km s-1, and rich multi-component NAL complexes that
also appear to have an outflow origin. |
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