Models for the Spectral Energy Distributions and Variability of Blazars

Understand

In this review, recent progress in theoretical models for blazar emission will be summarized.

• The salient features of both leptonic and lepto-hadronic approaches to modeling blazar spectral energy distributions will be reviewed.
• I will present sample modeling results of spectral energy distributions (SEDs) of different types of blazars along the blazar sequence, including Fermi high-energy gamma-ray data, using both types of models.
• Special emphasis will be placed on the implications of the recent very-high-energy (VHE) gamma-ray detections of non-traditional VHE gamma-ray blazars, including intermediate and low-frequency-peaked BL Lac objects and even flat-spectrum radio quasars.