Speaker
Description
Blazars, a subclass of active galactic nuclei, exhibit highly variable
non-thermal emission originating from relativistic jets aligned with the line
of sight to Earth. This variability offers key insights into the physical
processes driving these systems. In this study, we analyzed the X-ray spectra
of a sample of X-ray-bright blazars observed with NICER, fitting three
spectral models: a single power law, a broken power law, and a
log-parabola. Our results indicate that a single power law sufficiently
describes the majority of the X-ray spectra. However, in certain cases, a
broken power law or log-parabola model better represents the data,
suggesting spectral variability linked to complex jet dynamics. These
findings align with the standard blazar model, which attributes such
variability to shocks propagating through relativistic jets, providing new
insights into the emission mechanisms at play in these extreme
environments.
