Project Details
Projekt
Flaring and Time-Dependent Modeling of Blazars
Subject Area
Astrophysics and Astronomy
Term
since 2021
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 443220636
One of the key characteristics of blazars is their strongly variable emission. Their flux varies by up to orders of magnitude throughout the entire electromagnetic spectrum down to time scales of minutes. The gamma-ray band is of particular interest as it often dominates the total energy output of Blazars. Features imprinted in the light curves are likely related to changes in the underlying particle distributions and allow us to probe different physical mechanisms. In this project we will study variability properties of blazars in the gamma-ray band and multi-frequency correlations. We will explore the constraints on phenomenological models of acceleration and substructure in blazars. The analysis and interpretation of blazar gamma-ray variability opens an unlimited discovery space challenging our theoretical understanding of the black-hole jet phenomenon. We specifically address the precision diagnosis of the fastest gamma-ray variability observed across a wide energy band up to very-high energies (VHE, >100 GeV) to test models of jet substructures and radiation mechanisms by applying novel methods. We also target the jet-disk connection by investigating statistical broadband variability properties.
DFG Programme
Research Units
Subproject of
FOR 5195:
Relativistic Jets in Active Galaxies
