BL Lac Objects: Laboratories to study the environment and properties of emitting particles in relativistic jets
Nijil Mankuzhiyil, Stefano Ansoldi, Massimo Persic, Fabrizio Tavecchio

TL;DR
This study analyzes the spectral energy distribution variations of BL Lac objects using automated modeling to understand jet particle environments and their relation to source activity.
Contribution
It introduces an automated 2 minimization method for modeling BL Lac SEDs with a one-zone SSC model, enhancing objectivity and efficiency.
Findings
SSC parameters correlate with source luminosity
Automated fitting improves modeling consistency
Discussion on observational and modeling improvements
Abstract
We report the variation of the spectral energy distribution (SED) of blazars as a function of source activity, based on available, simultaneous multi-wavelength (MWL) observations of BL Lac objects. We use a fully automatized \c{hi}2 minimization procedure, instead of the commonly used eye-ball fit, to model the data sets with a one-zone Synchrotron-Self-Compton (SSC) model. The obtained SSC parameters are then analyzed as a function of source luminosity, and the correlation between parameters is shown. Possibilities of improving the present observational and modeling status of BL Lac objects are also discussed.
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Taxonomy
TopicsAstrophysics and Cosmic Phenomena · Gyrotron and Vacuum Electronics Research · Particle Accelerators and Free-Electron Lasers
