CRPropa 3.2: a public framework for high-energy astroparticle simulations
Paper in proceeding, 2024

CRPropa is a Monte Carlo framework for simulating the propagation of (ultra-) high-energy particles in the Universe, including cosmic rays, gamma rays, electrons, and neutrinos. It covers energies from ZeV down to GeV for gamma rays and electrons, and TeV for cosmic rays and neutrinos, supporting various astrophysical environments such as the surroundings of astrophysical sources, galactic, and extragalactic environments. The newest version, CRPropa 3.2, represents a significant leap forward towards a universal multi-messenger framework, opening up the possibility for many more astrophysical applications. This includes extensions to simulate cosmic-ray acceleration and particle interactions within astrophysical source environments, a full Monte Carlo treatment of electromagnetic cascades, improved ensemble-averaged Galactic propagation, significant performance improvements for cosmic-ray tracking through magnetic fields, and a user-friendly implementation of custom photon fields, among many more enhancements. This contribution will give an overview of the new features and present several applications to cosmic-ray and gamma-ray propagation.

Astro-particles

Ultra-high energies

Gamma-rays

Ensemble-averaged

Astrophysical sources

Energy

Electromagnetic cascades

Astrophysical applications

Cosmics

High-energy particles

Author

S. Aerdker

Ruhr-Universität Bochum

RAPP Center

R. Alves Batista

Spanish National Research Council (CSIC)

Julia Tjus

Chalmers, Space, Earth and Environment, Astronomy and Plasmaphysics

Ruhr-Universität Bochum

RAPP Center

J. Dörner

RAPP Center

Ruhr-Universität Bochum

A. Dundovic

Institute for Cosmology and Philosophy of Nature

Gran Sasso Science Institute (GSSI)

B. Eichmann

Ruhr-Universität Bochum

RAPP Center

A. Frie

RAPP Center

Ruhr-Universität Bochum

C. Heiter

RWTH Aachen University

Max Planck Society

M. Hörbe

RAPP Center

Ruhr-Universität Bochum

University of Oxford

Karl Heinz Kampert

Bergische Universität Wuppertal

RAPP Center

L. Merten

RAPP Center

Ruhr-Universität Bochum

G. Müller

RWTH Aachen University

P. Reichherzer

University of Oxford

S. Rossoni

University of Hamburg

A. Saveliev

Moscow State University

Immanuel Kant Baltic Federal University

Leander Schlegel

RAPP Center

Ruhr-Universität Bochum

G. Sigl

University of Hamburg

A. van Vliet

Khalifa University

T. Winchen

Max Planck Society

Proceedings of Science

18248039 (eISSN)

Vol. 444 1471

38th International Cosmic Ray Conference, ICRC 2023
Nagoya, Japan,

Subject Categories (SSIF 2025)

Astronomy, Astrophysics, and Cosmology

DOI

10.22323/1.444.1471

More information

Latest update

12/2/2025