your ID: 0198 First Name: Daniel Last Name: Nestor Affiliation: Institute of Astronomy, University of Cambridge Title: Outflows and Narrow-line UV Absorbers: Incidence, Velocity Distribution and Line-Locking Authors: Daniel Nestor, Fred Hamann, Paola Rodriguez Hidalgo Topic: 4 Session: oral Abstract: Ubiquitous in QSO spectra, narrow absorbers are under-studied due to their ambiguous (intrinsic or intervening) natures. Using SDSS, we discern velocity-space distributions of CIV absorbers, measure the excess over assumed non-outflow contributions (thereby determining the minimum \"intrinsic fraction\") and measure velocity-clustering to determine if the putative radiative line-locking phenomenom is real.