Star formation in 3CR radio galaxies and quasars at z < 1

Understand

Using the Herschel Space Observatory we have observed a representative sample of 87 powerful 3CR sources at redshift z < 1.

• The far-infrared (FIR, 70-500 micron) photometry is combined with mid-infrared (MIR) photometry from the Wide-Field Infrared Survey Explorer (WISE) and catalogued data to analyse the complete spectral energy distributions (SEDs) of each object from optical to radio wavelength.
• To disentangle the contributions of different components, the SEDs are fitted with a set of templates to derive the luminosities of host galaxy starlight, dust torus emission powered by active galactic nuclei (AGN) and cool dust heated by stars.
• The level of emission from relativistic jets is also estimated, in order to isolate the thermal host galaxy contribution.