Broad-line radio galaxies: old and feeble?

Abstract

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 micron or longward of 60 micron, 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.

Accepted for publication in A&A Letters

References in corpus (3)

• Quasi-Stellar Objects, Ultraluminous IR Galaxies, and Mergers
• 3C236: Radio Source, Interrupted?
• Stellar populations in the nuclear regions of nearby radiogalaxies

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