Abstract.
Using γ-ray band data detected by Fermi Large Area Telescope (LAT) and X-ray band data for 78 blazars, we find a medium correlation between X-ray and γ-ray fluxes in the average state. A medium anticorrelation is also found between X-ray (1KeV) mean spectral index α x and γ-ray mean spectral index α γ for blazars. Our results suggest that the most likely radiation mechanism for the high energy γ-ray would be SSC. And that the γ-ray emission mechanism may be somewhat different for BL Lacs and FSRQs.
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Acknowledgement
The authors are very grateful to the Science Foundation of Yunnan Province of China. This work is supported by the National Nature Science Foundation of China (U1231202, 11063004), the innovation team of gravitation theory research in Yunnan Normal University (2011CI127), the innovation team of High Energy Astrophysics Science and Technology in Yunnan Province Universities, the Science Foundation of Yunnan Province of China (2010CD016, 2012FB140).
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Li, B., Zhang, X. Relation between X-Ray and γ-Ray Emissions for Fermi Blazars. J Astrophys Astron 35, 345–347 (2014). https://doi.org/10.1007/s12036-014-9227-7
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DOI: https://doi.org/10.1007/s12036-014-9227-7