The low-redshift 3CRR sources

Details The low-redshift 3CRR sources The low-redshift 3CRR sources

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sptz.prop.3418b&link_type=abstract

Spitzer Proposal ID #3418

Computer Science

Scientific paper

We propose a program of IRAC and MIPS imaging photometry of the complete sample of z < 0.1 3CRR radio galaxies. These images will provide excellent information on the IR colors of the galaxies and active nuclei, and detect IR emission from several of the radio jets. We will use the data (1) to confirm the unusual IR colors of the host galaxies, which we interpret in terms of dusty debris from a recent encounter, which may have provided the fuel for the current radio activity of the nuclei; (2) to measure the energy outputs of the nuclei, and test the relationship between radio power and nuclear properties expected under unified schemes (and barely hinted at in the ISO database); (3) to study orientation effects in the IR emission of the nuclei, by comparing their IR properties with radio-derived indications of orientation; and (4) to construct wide-band spectra for the radio jets, and so test the universality of the maximum electron energy that appears from our radio to X-ray spectra, which we expect to result in a spectral break in the mid-IR at flux density levels accessible only to the Spitzer Space Telescope.

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