AKARI all-sky bright source catalogue: far-infrared luminous quasars and the optical far-infrared correlation

Sedgwick, Chris; Serjeant, Stephen; Pearson, Chris; Yamamura, I.; Makiuti, S.; Ikeda, N.; Fukuda, Y.; Oyabu, S.; Koga, T.; Amber, S. and White, Glenn J. (2017). AKARI all-sky bright source catalogue: far-infrared luminous quasars and the optical far-infrared correlation. Publications of The Korean Astronomical Society, 32(1) pp. 305–307.

DOI: https://doi.org/10.5303/PKAS.2017.32.1.305

Abstract

We have identified 22 quasars in the AKARI far-infrared all-sky Bright Source Catalogue, using a matching radius of < 10", and excluding matches which are close to foreground extended sources or cirrus. We have confirmed a relation between quasar optical luminosity and far-infrared luminosity which was found in an earlier study. In addition, we have found that the 11 sources which are at redshift z > 1 are magnified with respect to the predicted far-infrared luminosity, and consider this may be due to gravitational lensing. If confirmed, this would provide a new way to identify lenses; if not, we may have identified an interesting new population of extreme starbursting quasars.

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