Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003newar..47..205g&link_type=abstract
New Astronomy Reviews, Volume 47, Issue 4-5, p. 205-209.
Astronomy and Astrophysics
Astronomy
1
Scientific paper
Evidence for the Receding Torus Model for radio-loud AGN comes from two main sources: (i) the rise in quasar fraction with emission-line luminosity; and (ii) the difference in emission-line luminosity between radio galaxies and radio quasars. We have constructed a new type of luminosity function which shows that a two-population model, with a low-luminosity population of radio galaxies and a high-luminosity population composed of radio galaxies and radio quasars, can mimic the effects of a receding torus. The data are best explained, however, by a two-population model with a receding torus in both populations.
Grimes Jennifer A.
Rawlings Steve
Willott Chris J.
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