A composite plot of far-infrared versus radio luminosity, and the origin of far-infrared luminosity in quasars
Open Access
- 1 July 1991
- journal article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 251 (1) , 14P-16P
- https://doi.org/10.1093/mnras/251.1.14p
Abstract
We have constructed a composite plot of far-infrared versus radio luminosity for late-type galaxies, Seyferts, quasars and radio galaxies. The most striking result is that the radio and far-infrared luminosities of radio-quiet quasars are correlated and follow the same correlation as normal star-forming galaxies and ultra-luminous infrared galaxies, whereas the radio-loud quasars have luminosities in both bands similar to those of radio galaxies. We conclude that the far-infrared emission from radio-quiet quasars is from star-forming host galaxies and not from active galactic nuclei. The far-infrared radio plot may be a powerful discriminator between host galaxy type.Keywords
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