Observational Validation of Cosmic Ray Acceleration Hypothesis

Anil Raghav; Kalpesh Ghag; Omkar Dhamane; Zubair Shaikh; Ankush Bhaskar; Utsav Panchal

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arXiv · 2303.08651

Observational Validation of Cosmic Ray Acceleration Hypothesis

Anil Raghav·Kalpesh Ghag·Omkar Dhamane·Zubair Shaikh·Ankush Bhaskar·Utsav Panchal

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Abstract

Despite centuries of rigorous theoretical and observational research, the origin and acceleration mechanism of Galactic Cosmic Rays (GCRs) remain a mystery. In 1949, Fermi proposed a diffusive shock acceleration model that includes a prominent mechanism for GCR acceleration. However, observational evidence, on the other hand, remains elusive. Here, we provided the first apparent verification of GCR acceleration at 1 AU using measurements from the CRIS instrument onboard the ACE spacecraft.

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Anil Raghav, Kalpesh Ghag, Omkar Dhamane, Zubair Shaikh, Ankush Bhaskar, Utsav Panchal. 2023-03-15. Observational Validation of Cosmic Ray Acceleration Hypothesis. https://arxiv.org/abs/2303.08651

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