29 July 2015 to 6 August 2015
World Forum
Europe/Amsterdam timezone

Naima: a Python package for inference of particle distribution properties from nonthermal spectra

30 Jul 2015, 15:30
1h
Mississippi Foyer (World Forum)

Mississippi Foyer

World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Board: 124
Poster contribution GA-TH Poster 1 GA

Speaker

Victor Zabalza (University of Leicester)

Description

The ultimate goal of the observation of nonthermal emission from astrophysical sources is to understand the underlying particle acceleration and evolution processes, and few tools are publicly available to infer the particle distribution properties from the observed photon spectra from X-ray to VHE gamma rays. Naima is an open source Python package that provides models for non-thermal radiative emission from homogeneous distribution of relativistic electrons and protons. Contributions from synchrotron, inverse Compton, nonthermal bremsstrahlung, and neutral-pion decay can be computed for a series of functional shapes of the particle energy distributions, with the possibility of using user-defined particle distribution functions. In addition, Naima provides a set of functions that allow to use these models to fit observed nonthermal spectra through an MCMC procedure, obtaining probability distribution functions for the particle distribution parameters. In this contribution I will present the models and methods available in Naima and an example of their application to the understanding of a galactic nonthermal source.
Registration number following "ICRC2015-I/" 571
Collaboration -- not specified --

Primary author

Victor Zabalza (University of Leicester)

Presentation materials