Galactic cosmic ray propagation models using Picard
High Energy Astrophysical Phenomena
2015-10-12 v1
Abstract
We present results obtained from our newly developed Galactic cosmic-ray transport code PICARD, that solves the cosmic-ray transport equation. This code allows for the computation of cosmic-ray spectra and the resulting gamma-ray emission. Relying on contemporary numerical solvers allows for efficient computation of models with deca-parsec resolution. PICARD can handle locally anisotropic spatial diffusion acknowledging a full diffusion tensor. We used this framework to investigate the transition from axisymmetric to spiral-arm cosmic-ray source distributions. Wherever possible we compare model predictions with constraining observables in cosmic-ray astrophysics.
Cite
@article{arxiv.1510.02580,
title = {Galactic cosmic ray propagation models using Picard},
author = {Ralf Kissmann and Olaf Reimer and Andrew W. Strong},
journal= {arXiv preprint arXiv:1510.02580},
year = {2015}
}
Comments
8 pages, 2 figures, presented at the ICRC2015 in Den Haag