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          Institute: MPI für extraterrestrische Physik     Collection: Infrared and Submillimeter Astronomy     Display Documents



ID: 10503.0, MPI für extraterrestrische Physik / Infrared and Submillimeter Astronomy
Far-infrared/millimetre emission in 3C sources - Dust in radio galaxies and quasars
Authors:Andreani, P.; Fosbury, R. A. E.; van Bemmel, I.; Freudling, W.
Language:English
Date of Publication (YYYY-MM-DD):2002-01
Title of Journal:Astronomy & Astrophysics
Journal Abbrev.:Astron. Astrophys.
Volume:381
Issue / Number:2
Start Page:389
End Page:400
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:We present far-infrared and millimetric observations of a sample of 3C objects. Millimetre data were taken at 1.25 mm with the IRAM 30 m 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.
Free Keywords:galaxies : photometry; ISM; quasars : general; ISM : dust; radio continuum : galaxies; ISM
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für extraterrestrische Physik
External Affiliations:Max Planck Inst Extraterr Phys, Postfach 1312, D-85741; Garching, Germany; Astron Observ Padova, I-35122 Padua, Italy; European So Observ, Space Telescope European Coordinating Facil, D-85748 Garching, Germany; Kapteyn Astron Inst, NL-9700 AV Groningen, Netherlands
Identifiers:ISI:000173343100004
ISSN:1432-0746
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