<正>BL Lac objects are similar to the fiat spectrum radio quasars in many aspects except regarding the emission lines.In order to study their relationship,we se
The physics behind the spectral energy distribution (SED) of blazars remains open. We assembled 36 blazars to tackle the factors that control their SED. Now, ma
The ability to predict the future behavior of solar activity has become extremely import due to its effect on the environment near the Earth.Predictions of both