Sep 18 – 21, 2018
Cochem (Mosel), Germany
Europe/Berlin timezone
31st Jul Registration | 31th Aug Early Bird | 15th Oct Papers

From Electrons to Janskys: Comparing Synthetic TEMZ Model Light Curves to High-Cadence Data from the POLAMI and F-GAMMA Monitoring Programs

Sep 19, 2018, 10:10 AM
20m
Cochem (Mosel), Germany

Cochem (Mosel), Germany

Kapuzinerkloster, Klosterberg 5, 56812 Cochem
Oral Theory

Speaker

Dr Nicholas MacDonald (Max Planck Institute for Radio Astronomy)

Description

I will present a suite of synthetic full Stokes single dish light curves generated from the Turbulent Extreme Multi-Zone (TEMZ) model of blazar emission. These synthetic light curves are created via ray-tracing through the TEMZ jet model and include the effects of optical depth, relativistic aberration, Faraday rotation, Faraday conversion, slow-light interpolation, and beam convolution. We have embarked upon a systematic study of the TEMZ model parameters in order to explore what impact variations in: (i) the mean magnetic field strength, (ii) the ratio of the thermal to magnetic pressure, (iii) the minimum cutoff in the electron power-law energy distribution, and (iv) the pitch angle of the magnetic field within the jet plasma can have on the variability in the observed levels of linear and circular polarization emanating from the model. Comparison of these synthetic light curves to the POLAMI and F-GAMMA data sets highlight both the strengths and the weaknesses of the TEMZ model's ability to reproduce the observed variability in the linear and circular polarized emission emanating from these sources of jetted non-thermal emission.

Primary author

Dr Nicholas MacDonald (Max Planck Institute for Radio Astronomy)

Co-authors

Prof. Alan Marscher (Boston University) Dr Emmanouil Angelakis (Max Planck Institute for Radio Astronomy) Dr Ivan Agudo (Instituto de Astrofísica de Andalucía) Dr Ioannis Myserlis (Max Planck Institute for Radio Astronomy) Dr Clemens Thum (Institut de Radio Astronomie Millimétrique (IRAM))

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