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Astrophysics > High Energy Astrophysical Phenomena

arXiv:2406.14195 (astro-ph)
[Submitted on 20 Jun 2024]

Title:Investigating the Role of Pre-supernova Massive Stars in the Acceleration of Galactic Cosmic Rays

Authors:Michael De Becker, Santiago del Palacio, Paula Benaglia, Anandmayee Tej, Benito Marcote, Gustavo Esteban Romero, Valenti Bosch-Ramon, C. H. Ishwara-Chandra
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Abstract: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
Comments: 8 pages, 1 figure, Published in the Proceedings of the 3rd BINA Workshop on the Scientific Potential of the Indo-Belgian Cooperation
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE); Astrophysics of Galaxies (astro-ph.GA); Solar and Stellar Astrophysics (astro-ph.SR)
Cite as: arXiv:2406.14195 [astro-ph.HE]
  (or arXiv:2406.14195v1 [astro-ph.HE] for this version)
  https://doi.org/10.48550/arXiv.2406.14195
Journal reference: Bulletin de la Société Royale des Sciences de Liège, 2024, Volume 93, No 2, 536-543
Related DOI: https://doi.org/10.25518/0037-9565.11783

Submission history

From: Michael De Becker [view email]
[v1] Thu, 20 Jun 2024 10:57:26 UTC (113 KB)
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