Abstract
The infrared properties of Fermi AGNs were investigated using the survey data of the Wide-field Infrared Survey Explorer (WISE). The results showed: (1) BL Lacs tend to be brighter than FSRQs at 3.4 μm. However, with increase of wavelength, FSRQs tend to be brighter than BL Lacs. (2) FSRQs colours are redder than BL Lacs; (3) A strong correlation exists between infrared and γ-ray luminosity.
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References
Ackermann M. et al. 2011, Astrophys. J., 743, 271.
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Acknowledgements
This work was supported by the China Ministry of Science and Technology under State Key Development Programme for Basic Research (2012CB821800) and the Natural Science Foundation of China (Nos 11043012, 11178009).
