Investigating the Role of Pre-supernova Massive Stars in the Acceleration of Galactic Cosmic Rays
Journal article, 2024

Galactic cosmic rays (GCRs) constitute a significant part of the energy budget of our Galaxy, and the study of their accelerators is of high importance in modern astrophysics. Their main sources are likely supernova remnants (SNRs). These objects are capable to convert a part of their mechanical energy into accelerated charged particles. However, even though the mechanical energy reservoir of SNRs is promising, a conversion rate into particle energy of 10 to 20% is necessary to feed the population of GCRs. Such an efficiency is however not guaranteed. Complementary sources deserve thus to be investigated. This communication aims to address the question of the contribution to the acceleration of GCRs by pre-supernova massive stars in binary or higher multiplicity systems.

Galactic cosmic rays

Particle acceleration

Massive binaries

Non-thermal processes

Supernova remnants

Author

M. De Becker

University of Liège

Santiago Del Palacio

Chalmers, Space, Earth and Environment, Astronomy and Plasmaphysics

P. Benaglia

Instituto Argentino de Radioastronomia

Anandmayee Tej

Indian Institute of Space Science and Technology

B. Marcote

Joint Institute for VLBI in Europe (JIVE)

Gustavo Esteban Romero

Instituto Argentino de Radioastronomia

V. Bosch-Ramon

University of Barcelona

C. H. Ishwara-Chandra

National Centre for Radio Astrophysics India

Bulletin de la Societe Royale des Sciences de Liege

17835720 (eISSN)

Vol. 93 2 536-543

Subject Categories

Astronomy, Astrophysics and Cosmology

DOI

10.25518/0037-9565.11783

More information

Latest update

8/7/2024 1