Far-Infrared/Millimetre Emission in 3C Ssources. Dust in Radio Galaxies and Quasars

Details Far-Infrared/Millimetre Emission in 3C Ssources. Dust in Radio Galaxies and Quasars Far-Infrared/Millimetre Emission in 3C Ssources. Dust in Radio Galaxies and Quasars

2001-11-04

arxiv.org/abs/astro-ph/0111064v1

Astronomy and Astrophysics

Astrophysics

15 pages, A&A, in press

Scientific paper

10.1051/0004-6361:20011509

We present far-infrared and millimetric observations of a sample of 3C objects. Millimetre data were taken at 1.25 mm with the IRAM 30m antenna feeding the MPIfR bolometer array. Mid-infrared (MIR) and far-infrared (FIR) photometry were carried out with the ISOCAM and ISOPHOT cameras on the ISO Satellite. Additional FIR IRAS observations are also included. We present the entire Spectral Energy Distributions (SEDs) from the UV to radio and discuss the emitting mechanisms. Two composite spectra, one for the radio galaxies and one for the radio quasars, are built in the object rest frame. While the SEDs of the two classes differ, they are indistinguishable in the MIR and FIR range where they probably arise as thermal emission from a dusty torus and a larger-scale (cooler) dust distribution in the host galaxy.

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