Broad-line radio galaxies: Old and feeble?
Kapteyn Astronomical Institute, PO Box 800, 9700 AV Groningen, The Netherlands
Corresponding author: I. van Bemmel, email@example.com
Accepted: 27 September 2001
Far-infrared photometry of broad-line radio galaxies shows this class of AGN to consist of many hot and some cool infrared emitters, with peaks in their spectral energy distributions around 25 μm or longward of 60 μm, respectively. Quantitative analysis indicates that this distribution relates to a substantial dispersion in the strength of the cool dust component: broad-line radio galaxies are relatively poor in large-scale dust. Possibly they have undergone a different merger evolution, or are relatively old AGN.
Key words: galaxies: active / infrared: galaxies / quasars: general
© ESO, 2001