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

Abstract

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.

15 pages, A&A, in press

References in corpus (3)

• Molecular Gas in Infrared-Excess, Optically-Selected QSOs and the Connection with Infrared Luminous Galaxies
• Dust emission from 3C radio galaxies and quasars: New ISO observations favour the unified scheme
• Millimeter observations of radio-loud active galaxies

Cited by in corpus (17)

• Spitzer Observations of 3C Quasars and Radio Galaxies: Mid-Infrared Properties of Powerful Radio Sources
• The Spitzer High Redshift Radio Galaxy Survey
• CO emission and associated HI absorption from a massive gas reservoir surrounding the z=3 radio galaxy B3 J2330+3927
• Dust and star formation in distant radio galaxies
• On the Nature of MeV-blazars
• ISOCAM survey and dust models of 3CR radio galaxies and quasars
• The GOODS-N Jansky VLA 10 GHz Pilot Survey: Sizes of Star-Forming $\mu$Jy Radio Sources
• The ISOPHOT-MAMBO survey of 3CR radio sources: Further evidence for the unified schemes
• Far Infrared Observations of Radio Quasars and FR II Radio Galaxies
• Dust tori in radio galaxies
• Obscured Activity: AGN, Quasars, Starbursts and ULIGs observed by the Infrared Space Observatory
• Spitzer Observations of the Prototypical Extremely Red Objects HR10 and LBDS53W091: Separating Dusty Starbursts from Old Elliptical Galaxies
• Star formation in 3CR radio galaxies and quasars at z < 1
• Cavities, shocks and a cold front around 3C 320
• MAMBO 1.25mm observations of 3CR radio galaxies and quasars at z=1.5: On the debate of the unified schemes
• Evidence of intense hot(~340K) dust in 3CR radio galaxies The most dissipative source of cooling in AGNs
• Analysis of the Absorption Line Profile at 21 cm for the Hydrogen Atom in Interstellar Medium