Correlation between the gamma-ray and the radio emissions

In this paper, the correlation between the gamma-ray and the radio bands is investigated. The results show that there is a closer correlation between the gamma-ray emission and the high frequency (1.3 mm, 230 GHz) radio emission for maximum data than between the gamma-ray and the lower frequency (5GHz) radio emissions, which means that the gamma-ray is associated with the radio emission from the jet.