Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...20111405s&link_type=abstract
American Astronomical Society, 201st AAS Meeting, #114.05; Bulletin of the American Astronomical Society, Vol. 34, p.1287
Astronomy and Astrophysics
Astronomy
Scientific paper
Galactic nuclei harbor supermassive black holes with masses closely related to the properties of the bulge component of the host galaxy, in particular the stellar velocity dispersion, σ *. This is based on dynamical studies of nearby galactic nuclei. QSOs afford an opportunity to extend such results to more distant objects, as the black hole mass can be estimated from the width of the broad Hβ and Mg II lines. The width of the narrow [O III] lines in AGN appears to be proportional to σ *. This affords an opportunity to measure σ * in large samples of AGN, including distant quasars with large look-back times (Shields, G.A. et al. 2003, ApJ, in press, astro-ph/0210050). Use of the [O II] line width in place of [O III] would allow study of higher redshift objects in any given observational spectral window. We investigate the utility of the [O II] line width as a surrogate for σ * in low- to moderate-redshift QSOs, using available spectroscopic data sets, including the Sloan Digital Sky Survey.
Gebhardt Karl
Salviander Sarah
Shields Gregory A.
No associations
LandOfFree
Narrow Emission Lines as Surrogates for σ * in Low- to Moderate-z QSOs does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Narrow Emission Lines as Surrogates for σ * in Low- to Moderate-z QSOs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Narrow Emission Lines as Surrogates for σ * in Low- to Moderate-z QSOs will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1891108