Correlation between the Gamma-ray and the Near-infrared Emissions from Gamma-ray-loud Blazars in the Low State
Source: Astrophysics and Space Science, Volume 286, Numbers 3-4, 2003 , pp. 323-331(9)
Abstract:We have studied the correlations between the near-IR and the γ-ray bands using 29 observed γ-ray-loud blazars (16 BL Lac objects and 13 flat-spectrum radio quasars (FSRQs)) with near-IR and γ-ray spectral indices and fluxes. The results show that there are very strong correlations between near-IR mean spectral index αIR and γ-ray mean spectral index αγ and between near-IR and γ-ray fluxes. Which means that γ-ray radiation from the blazars should be mainly produced by the synchrotron self-Compton process. In addition, the γ-ray emission of BL Lac objects may be somewhat different from flat-spectrum radio quasars.
Document Type: Research Article
Affiliations: 1: Department of physics, Yunnan Normal University, Kunming, China; National Astronomical Observatory, Chinese Academy of Science, Beijing, China, Email: email@example.com 2: Department of physics, The University of Hong Kong, China 3: National Astronomical Observatory, Chinese Academy of Science, Beijing, China 4: Department of physics, Yunnan Normal University, Kunming, China
Publication date: 2003