Modeling The Multiwavelength Correlation Of Blazar Emission: X-ray Hard-lags And X-ray/gamma-ray Correlation.

Details Modeling The Multiwavelength Correlation Of Blazar Emission: X-ray Hard-lags And X-ray/gamma-ray Correlation. Modeling The Multiwavelength Correlation Of Blazar Emission: X-ray Hard-lags And X-ray/gamma-ray Correlation.

Sep 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011head...12.0723c&link_type=abstract

American Astronomical Society, HEAD meeting #12, #7.23

Astronomy and Astrophysics

Astronomy

Scientific paper

We investigate with time-dependent multi-zone simulations two features features of TeV blazars multiwavelength variability that are of particular theoretical interests: X-ray hard lags and gamma-ray/X-ray quadratic relationship. We use a Monte Carlo/ Fokker-Planck radiative transfer code which enables us to take on the challenge of fully accounting the light crossing time effects, properly modeling them for what concerns both their effect on the observations and on the radiative processes within the source. We studied a class of scenarios in which the outburst is caused by a shock crossing the emission region. We will illustrate some factors that contribute to making these features difficult to reproduce. Our simulations show what kind of combination of stochastic particle acceleration, shock injection, and achromatic energy loss (e.g. particle escape) can reproduce the observed features in a shock-in-jet model framework. Both hard-lag and soft lag will be explained in the same model. The implication and justification of these particle processes will also be discussed.
This research has been supported by NASA grants NNX10AO42G (Fermi GI). We acknowledge support from Smithsonian AO AR9-0016X (Chandra GO). This work is done in collaboration with E. Liang and M. Boettcher.

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