A minimalist approach to BL Lacertae: explaining gamma-ray spectral and temporal variability with a single physical parameter

Raniere de Menezes, Francesco Massaro, Elisa Visentin +2

The eponymous BL Lac object BL Lacertae is one of the most well-monitored active galactic nuclei, frequently observed from radio to gamma rays. Its relatively soft $\gamma$-ray spectrum…