A Tentative Size-Luminosity Relation for the Iron Emission-Line Region in Quasars

Abstract

New reverberation mapping measurements of the size of the optical iron emission-line region in quasars are provided, and a tentative size-luminosity relation for this component is reported. Combined with lag measurements in low-luminosity sources, the results imply an emission-region size that is comparable to and at most twice that of the H$\beta$ line, and is characterized by a similar luminosity dependence. This suggests that the physics underlying the formation of the optical iron blends in quasars may be similar to that of other broad emission lines.

arXiv comment5 pages, 3 figures, ApJL published

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Cited by in corpus (10)

• Supermassive Black Holes with High Accretion Rates in Active Galactic Nuclei. III. Detection of Fe II Reverberation in Nine Narrow-Line Seyfert 1 Galaxies
• Modelling of the quasar main sequence in the optical plane
• The Fundamental Plane of the Broad-line Region in Active Galactic Nuclei
• Astronomical Distance Determination in the Space Age. Secondary distance indicators
• A New Black Hole Mass Estimate for Obscured Active Galactic Nuclei
• Chemical evolution of the Universe at 0.7 < z < 1.6 derived from abundance diagnostics of the broad-line region of quasars
• Fe II emission in active galactic nuclei
• On the Performance of Quasar Reverberation Mapping in the Era of Time-Domain Photometric Surveys
• Wavelength-resolved reverberation mapping of intermediate redshift quasars HE 0413-4031 and HE 0435-4312: Dissecting Mg II, optical Fe II, and UV Fe II emission regions
• SALT long-slit spectroscopy of HE 0435-4312: fast displacement in the Mg II emission line