We have generated a sample of 409 active galactic nuclei (AGNs) for which both the radio luminosity at 5 GHz and the line luminosity in [O III] j5007 have been measured. The radio luminosity spans a range of 10 orders of magnitude, and the [O III] line luminosity spans a range of 8 orders of magnitudeÈboth considerably larger than the ranges in previous studies. We show that these two quantities are correlated in a similar way for both radio-loud and radio-quiet AGNs. We demonstrate that the observed correlation can be explained in terms of a model in which jets are accelerated and collimated by a vertical magnetic Ðeld (Refer to PDF file for exact formulas).

Publication Date



Also archived in: arXiv: astro-ph/9905322 v1 25 May 1999 M. L. acknowledges support from NASA grant NAG 5-6857. This work has been supported in part by the Director's Discretionary Research Fund at STScI. We acknowledge useful discussions with Andrew Wilson.ISSN:1538-3881 Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works in February 2014.

Document Type


Department, Program, or Center

School of Physics and Astronomy (COS)


RIT – Main Campus