2005/08/26 by W. Bian, Wei‐Hao Bian, Q. Yuan +6
Physics and Astronomy · #Astrophysical Phenomena and Observations #Astrophysics (astro-ph) #FOS: Physical sciences #Galaxies: Formation, Evolution, Phenomena #Gamma-ray bursts and supernovae #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0508570
11 Pages, 4 figures, 3 tales, accepted for publication in MNRAS
arxiv created 2005/08/26 · openalex publication_date 2005/08/26 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We investigate the radial velocity difference between the narrow emission-line components of [O III] λ 5007 and Hβ in a sample of 150 SDSS NLS1s. Seven "blue outliers" with [O III] blueshifted by more than 250 \kms are found. A strong correlation between the [O III] blueshift and the Eddington ratio is found for these seven "blue outliers". For the entire sample, we found a modest correlation between the blueshift and the linewidth of the narrow component of the [O III] line. The reflected profile of [O III] indicates two kinematically and physically distinct regions. The [O III] linewidth depends not only on the bulge stellar gravitational potential, but also on the central black hole potential.