Welcome to a seminar arranged by Linnaeus University Centre for Data Intensive Sciences and Applications.
Lecturer: Andrea Tramacere, Common Data Centre Infrastructure, Department of Astronomy, University of Geneva, Switzerland
Title: Numerical modelling of radiative and accelerative processes acting in relativistic jets with the JetSeT framework
In this seminar I will review the theory and the phenomenology of the acceleration and radiative processes acting in the relativistic jets of blazars, with a focus on the numerical modelling of the SSC/EC scenario using the JetSeT framework. In particular will discuss the following arguments:
- handling observed data (rebinning, definition of data sets)
- definition of complex radiative scenarion SSC/EC IC against CMB
- Constraining of the model in the pre-fitting stage, based on accurate and already published phenomenological trends
- Fitting of multiwavelength SEDs using both frequentist approach (iminuit) and MCMC sampling (emcee)
- Reproduction of the temporal evolution of the plasma under the effect of radiative and accelerative processes, both first order and second order (stochastic acceleration) processes.
About the lecturer
I am scientist and data scientist, at the Astronomy department of the University of Geneva. I am a member of the EUCLID consortium and a former member (2002-2012) of the Fermi-LAT team (ISOC@SLAC).
My main research topics are:
- high energy astrophysics (acceleration and emission processes in relativistic jets)
- scientific coding (Python/C) and developer of online data analysis tools (dispatcher/api/data processing)
- application of clustering methods and machine learning algorithms to astrophysical problems:
- photometric redshift
- deblending and detection of confused sources in the optical and gamma-ray spectral window